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annotate liboctave/array/Array.cc @ 19861:19755f4fc851

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maint: Cleanup C++ code to follow Octave coding conventions. Try to wrap long lines to < 80 characters. Use GNU style and don't indent first brace of function definition. "case" statement is aligned flush left with brace of switch stmt. Remove trailing '\' line continuation from the end of #define macros. Use 2 spaces for indent. * files-dock-widget.cc, history-dock-widget.cc, main-window.cc, octave-cmd.cc, octave-dock-widget.cc, octave-gui.cc, resource-manager.cc, settings-dialog.cc, shortcut-manager.cc, welcome-wizard.cc, workspace-view.cc, cellfun.cc, data.cc, debug.cc, debug.h, dirfns.cc, error.h, file-io.cc, gl-render.cc, gl-render.h, gl2ps-renderer.h, graphics.cc, graphics.in.h, help.cc, input.cc, load-path.cc, load-path.h, lookup.cc, lu.cc, oct-stream.cc, octave-default-image.h, ordschur.cc, pr-output.cc, qz.cc, strfns.cc, symtab.cc, symtab.h, sysdep.cc, variables.cc, zfstream.h, __fltk_uigetfile__.cc, __init_fltk__.cc, __magick_read__.cc, __osmesa_print__.cc, audiodevinfo.cc, ov-classdef.cc, ov-classdef.h, ov-fcn.h, ov-float.cc, ov-flt-complex.cc, ov-java.cc, ov-range.cc, ov-re-mat.cc, ov-usr-fcn.h, ov.cc, op-int.h, options-usage.h, pt-eval.cc, Array-C.cc, Array-fC.cc, Array.cc, Array.h, PermMatrix.cc, Sparse.cc, chMatrix.h, dSparse.cc, dim-vector.h, bsxfun-decl.h, bsxfun-defs.cc, oct-norm.cc, Sparse-op-defs.h, oct-inttypes.cc, oct-inttypes.h, main.in.cc, mkoctfile.in.cc: Cleanup C++ code to follow Octave coding conventions.
author Rik <rik@octave.org>
date Wed, 25 Feb 2015 11:55:49 -0800
parents 4197fc428c7d
children
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1993
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1 // Template array classes
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2 /*
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3
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4 Copyright (C) 1993-2015 John W. Eaton
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5 Copyright (C) 2008-2009 Jaroslav Hajek
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6 Copyright (C) 2009 VZLU Prague
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7
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8 This file is part of Octave.
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9
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10 Octave is free software; you can redistribute it and/or modify it
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11 under the terms of the GNU General Public License as published by the
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12 Free Software Foundation; either version 3 of the License, or (at your
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13 option) any later version.
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14
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15 Octave is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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18 for more details.
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19
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20 You should have received a copy of the GNU General Public License
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21 along with Octave; see the file COPYING. If not, see
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22 <http://www.gnu.org/licenses/>.
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23
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24 */
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25
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26 #ifdef HAVE_CONFIG_H
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27 #include <config.h>
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28 #endif
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29
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30 #include <cassert>
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31
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32 #include <iostream>
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33 #include <sstream>
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34 #include <vector>
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35 #include <algorithm>
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36 #include <new>
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37
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38 #include "Array.h"
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39 #include "Array-util.h"
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40 #include "idx-vector.h"
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41 #include "lo-error.h"
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42 #include "oct-locbuf.h"
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43
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44 // One dimensional array class. Handles the reference counting for
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45 // all the derived classes.
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46
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47 template <class T>
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48 Array<T>::Array (const Array<T>& a, const dim_vector& dv)
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49 : dimensions (dv), rep (a.rep),
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50 slice_data (a.slice_data), slice_len (a.slice_len)
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51 {
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52 if (dimensions.safe_numel () != a.numel ())
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53 {
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54 std::string dimensions_str = a.dimensions.str ();
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55 std::string new_dims_str = dimensions.str ();
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56
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57 (*current_liboctave_error_handler)
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58 ("reshape: can't reshape %s array to %s array",
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59 dimensions_str.c_str (), new_dims_str.c_str ());
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60 }
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61
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62 // This goes here because if an exception is thrown by the above,
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63 // destructor will be never called.
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64 rep->count++;
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65 dimensions.chop_trailing_singletons ();
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66 }
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67
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68 template <class T>
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69 void
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70 Array<T>::fill (const T& val)
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71 {
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72 if (rep->count > 1)
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73 {
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74 --rep->count;
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75 rep = new ArrayRep (length (), val);
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76 slice_data = rep->data;
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77 }
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78 else
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79 std::fill_n (slice_data, slice_len, val);
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80 }
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81
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82 template <class T>
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83 void
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84 Array<T>::clear (void)
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85 {
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86 if (--rep->count == 0)
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87 delete rep;
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88
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89 rep = nil_rep ();
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90 rep->count++;
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91 slice_data = rep->data;
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92 slice_len = rep->len;
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93
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94 dimensions = dim_vector ();
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95 }
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96
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97 template <class T>
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98 void
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99 Array<T>::clear (const dim_vector& dv)
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100 {
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101 if (--rep->count == 0)
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102 delete rep;
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103
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104 rep = new ArrayRep (dv.safe_numel ());
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105 slice_data = rep->data;
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106 slice_len = rep->len;
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107
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108 dimensions = dv;
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109 dimensions.chop_trailing_singletons ();
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110 }
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111
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112 template <class T>
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113 Array<T>
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114 Array<T>::squeeze (void) const
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115 {
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116 Array<T> retval = *this;
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117
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118 if (ndims () > 2)
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119 {
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120 bool dims_changed = false;
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121
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122 dim_vector new_dimensions = dimensions;
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123
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124 int k = 0;
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125
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126 for (int i = 0; i < ndims (); i++)
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127 {
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128 if (dimensions(i) == 1)
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129 dims_changed = true;
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130 else
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131 new_dimensions(k++) = dimensions(i);
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132 }
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133
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134 if (dims_changed)
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135 {
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136 switch (k)
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137 {
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138 case 0:
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139 new_dimensions = dim_vector (1, 1);
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140 break;
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141
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142 case 1:
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diff changeset
143 {
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144 octave_idx_type tmp = new_dimensions(0);
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145
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diff changeset
146 new_dimensions.resize (2);
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147
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diff changeset
148 new_dimensions(0) = tmp;
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diff changeset
149 new_dimensions(1) = 1;
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150 }
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diff changeset
151 break;
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152
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153 default:
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154 new_dimensions.resize (k);
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155 break;
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156 }
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157 }
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158
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159 retval = Array<T> (*this, new_dimensions);
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160 }
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161
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162 return retval;
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163 }
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164
237
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165 template <class T>
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166 octave_idx_type
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167 Array<T>::compute_index (octave_idx_type i, octave_idx_type j) const
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168 {
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169 return ::compute_index (i, j, dimensions);
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170 }
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171
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172 template <class T>
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173 octave_idx_type
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174 Array<T>::compute_index (octave_idx_type i, octave_idx_type j,
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175 octave_idx_type k) const
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176 {
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177 return ::compute_index (i, j, k, dimensions);
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178 }
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179
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180 template <class T>
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181 octave_idx_type
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182 Array<T>::compute_index (const Array<octave_idx_type>& ra_idx) const
237
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183 {
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184 return ::compute_index (ra_idx, dimensions);
237
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185 }
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186
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187 template <class T>
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188 T&
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189 Array<T>::checkelem (octave_idx_type n)
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190 {
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191 // Do checks directly to avoid recomputing slice_len.
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192 if (n < 0)
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193 gripe_invalid_index ();
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194 if (n >= slice_len)
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195 gripe_index_out_of_range (1, 1, n+1, slice_len);
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196
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197 return elem (n);
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198 }
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199
3933
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200 template <class T>
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201 T&
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202 Array<T>::checkelem (octave_idx_type i, octave_idx_type j)
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203 {
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204 return elem (compute_index (i, j));
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205 }
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206
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207 template <class T>
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208 T&
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209 Array<T>::checkelem (octave_idx_type i, octave_idx_type j, octave_idx_type k)
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210 {
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211 return elem (compute_index (i, j, k));
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diff changeset
212 }
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diff changeset
213
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diff changeset
214 template <class T>
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215 T&
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diff changeset
216 Array<T>::checkelem (const Array<octave_idx_type>& ra_idx)
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217 {
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218 return elem (compute_index (ra_idx));
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diff changeset
219 }
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220
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
221 template <class T>
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diff changeset
222 typename Array<T>::crefT
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diff changeset
223 Array<T>::checkelem (octave_idx_type n) const
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diff changeset
224 {
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diff changeset
225 // Do checks directly to avoid recomputing slice_len.
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diff changeset
226 if (n < 0)
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diff changeset
227 gripe_invalid_index ();
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diff changeset
228 if (n >= slice_len)
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diff changeset
229 gripe_index_out_of_range (1, 1, n+1, slice_len);
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diff changeset
230
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
231 return elem (n);
4513
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diff changeset
232 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
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diff changeset
233
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
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diff changeset
234 template <class T>
10366
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diff changeset
235 typename Array<T>::crefT
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diff changeset
236 Array<T>::checkelem (octave_idx_type i, octave_idx_type j) const
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diff changeset
237 {
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diff changeset
238 return elem (compute_index (i, j));
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diff changeset
239 }
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diff changeset
240
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
241 template <class T>
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diff changeset
242 typename Array<T>::crefT
17769
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parents: 17744
diff changeset
243 Array<T>::checkelem (octave_idx_type i, octave_idx_type j,
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diff changeset
244 octave_idx_type k) const
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diff changeset
245 {
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diff changeset
246 return elem (compute_index (i, j, k));
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diff changeset
247 }
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diff changeset
248
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diff changeset
249 template <class T>
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diff changeset
250 typename Array<T>::crefT
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diff changeset
251 Array<T>::checkelem (const Array<octave_idx_type>& ra_idx) const
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252 {
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diff changeset
253 return elem (compute_index (ra_idx));
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diff changeset
254 }
9731
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diff changeset
255
7b9cbaad68d6 extend Array<T>
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diff changeset
256 template <class T>
7b9cbaad68d6 extend Array<T>
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diff changeset
257 Array<T>
7b9cbaad68d6 extend Array<T>
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diff changeset
258 Array<T>::column (octave_idx_type k) const
7b9cbaad68d6 extend Array<T>
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diff changeset
259 {
7b9cbaad68d6 extend Array<T>
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diff changeset
260 octave_idx_type r = dimensions(0);
7b9cbaad68d6 extend Array<T>
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diff changeset
261 #ifdef BOUNDS_CHECKING
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diff changeset
262 if (k < 0 || k > dimensions.numel (1))
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diff changeset
263 gripe_index_out_of_range (2, 2, k+1, dimensions.numel (1));
9731
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diff changeset
264 #endif
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diff changeset
265
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diff changeset
266 return Array<T> (*this, dim_vector (r, 1), k*r, k*r + r);
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diff changeset
267 }
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diff changeset
268
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diff changeset
269 template <class T>
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diff changeset
270 Array<T>
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diff changeset
271 Array<T>::page (octave_idx_type k) const
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diff changeset
272 {
18084
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diff changeset
273 octave_idx_type r = dimensions(0);
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diff changeset
274 octave_idx_type c = dimensions(1);
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diff changeset
275 octave_idx_type p = r*c;
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diff changeset
276 #ifdef BOUNDS_CHECKING
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277 if (k < 0 || k > dimensions.numel (2))
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diff changeset
278 gripe_index_out_of_range (3, 3, k+1, dimensions.numel (2));
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diff changeset
279 #endif
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280
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diff changeset
281 return Array<T> (*this, dim_vector (r, c), k*p, k*p + p);
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diff changeset
282 }
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283
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diff changeset
284 template <class T>
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diff changeset
285 Array<T>
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diff changeset
286 Array<T>::linear_slice (octave_idx_type lo, octave_idx_type up) const
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287 {
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288 #ifdef BOUNDS_CHECKING
10366
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289 if (lo < 0)
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290 gripe_index_out_of_range (1, 1, lo+1, numel ());
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291 if (up > numel ())
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292 gripe_index_out_of_range (1, 1, up, numel ());
9731
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293 #endif
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294 if (up < lo) up = lo;
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295 return Array<T> (*this, dim_vector (up - lo, 1), lo, up);
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
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296 }
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
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297
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298 // Helper class for multi-d dimension permuting (generalized transpose).
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299 class rec_permute_helper
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300 {
11507
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parents: 11242
diff changeset
301 // STRIDE occupies the last half of the space allocated for dim to
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
302 // avoid a double allocation.
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John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
303
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John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
304 int n;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
305 int top;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
306 octave_idx_type *dim;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
307 octave_idx_type *stride;
9012
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308 bool use_blk;
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309
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diff changeset
310 public:
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parents: 8390
diff changeset
311 rec_permute_helper (const dim_vector& dv, const Array<octave_idx_type>& perm)
11507
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John W. Eaton <jwe@octave.org>
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312
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
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parents: 11242
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313 : n (dv.length ()), top (0), dim (new octave_idx_type [2*n]),
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
314 stride (dim + n), use_blk (false)
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315 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
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316 assert (n == perm.length ());
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317
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318 // Get cumulative dimensions.
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319 OCTAVE_LOCAL_BUFFER (octave_idx_type, cdim, n+1);
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diff changeset
320 cdim[0] = 1;
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parents: 17744
diff changeset
321 for (int i = 1; i < n+1; i++) cdim[i] = cdim[i-1] * dv(i-1);
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diff changeset
322
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323 // Setup the permuted strides.
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diff changeset
324 for (int k = 0; k < n; k++)
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diff changeset
325 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff changeset
326 int kk = perm(k);
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Rik <rik@octave.org>
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diff changeset
327 dim[k] = dv(kk);
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diff changeset
328 stride[k] = cdim[kk];
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parents: 17744
diff changeset
329 }
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diff changeset
330
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diff changeset
331 // Reduce contiguous runs.
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Rik <rik@octave.org>
parents: 17744
diff changeset
332 for (int k = 1; k < n; k++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
333 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
334 if (stride[k] == stride[top]*dim[top])
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Rik <rik@octave.org>
parents: 17744
diff changeset
335 dim[top] *= dim[k];
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parents: 17744
diff changeset
336 else
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Rik <rik@octave.org>
parents: 17744
diff changeset
337 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
338 top++;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
339 dim[top] = dim[k];
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parents: 17744
diff changeset
340 stride[top] = stride[k];
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Rik <rik@octave.org>
parents: 17744
diff changeset
341 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
342 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
343
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff changeset
344 // Determine whether we can use block transposes.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
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diff changeset
345 use_blk = top >= 1 && stride[1] == 1 && stride[0] == dim[1];
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Rik <rik@octave.org>
parents: 17744
diff changeset
346
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
347 }
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diff changeset
348
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diff changeset
349 ~rec_permute_helper (void) { delete [] dim; }
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diff changeset
350
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parents: 8920
diff changeset
351 // Helper method for fast blocked transpose.
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
352 template <class T>
9121
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
353 static T *
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
354 blk_trans (const T *src, T *dest, octave_idx_type nr, octave_idx_type nc)
17769
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Rik <rik@octave.org>
parents: 17744
diff changeset
355 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff changeset
356 static const octave_idx_type m = 8;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff changeset
357 OCTAVE_LOCAL_BUFFER (T, blk, m*m);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff changeset
358 for (octave_idx_type kr = 0; kr < nr; kr += m)
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Rik <rik@octave.org>
parents: 17744
diff changeset
359 for (octave_idx_type kc = 0; kc < nc; kc += m)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
360 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
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diff changeset
361 octave_idx_type lr = std::min (m, nr - kr);
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diff changeset
362 octave_idx_type lc = std::min (m, nc - kc);
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parents: 17744
diff changeset
363 if (lr == m && lc == m)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
364 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff changeset
365 const T *ss = src + kc * nr + kr;
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Rik <rik@octave.org>
parents: 17744
diff changeset
366 for (octave_idx_type j = 0; j < m; j++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
367 for (octave_idx_type i = 0; i < m; i++)
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Rik <rik@octave.org>
parents: 17744
diff changeset
368 blk[j*m+i] = ss[j*nr + i];
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parents: 17744
diff changeset
369 T *dd = dest + kr * nc + kc;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
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diff changeset
370 for (octave_idx_type j = 0; j < m; j++)
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Rik <rik@octave.org>
parents: 17744
diff changeset
371 for (octave_idx_type i = 0; i < m; i++)
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Rik <rik@octave.org>
parents: 17744
diff changeset
372 dd[j*nc+i] = blk[i*m+j];
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Rik <rik@octave.org>
parents: 17744
diff changeset
373 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
374 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
375 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
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diff changeset
376 const T *ss = src + kc * nr + kr;
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parents: 17744
diff changeset
377 for (octave_idx_type j = 0; j < lc; j++)
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Rik <rik@octave.org>
parents: 17744
diff changeset
378 for (octave_idx_type i = 0; i < lr; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
379 blk[j*m+i] = ss[j*nr + i];
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parents: 17744
diff changeset
380 T *dd = dest + kr * nc + kc;
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parents: 17744
diff changeset
381 for (octave_idx_type j = 0; j < lr; j++)
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Rik <rik@octave.org>
parents: 17744
diff changeset
382 for (octave_idx_type i = 0; i < lc; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
383 dd[j*nc+i] = blk[i*m+j];
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
384 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
385 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
386
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
387 return dest + nr*nc;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
388 }
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
389
8410
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Jaroslav Hajek <highegg@gmail.com>
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diff changeset
390 private:
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
391
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parents: 8390
diff changeset
392 // Recursive N-d generalized transpose
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
393 template <class T>
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
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diff changeset
394 T *do_permute (const T *src, T *dest, int lev) const
17769
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Rik <rik@octave.org>
parents: 17744
diff changeset
395 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
396 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
397 {
18084
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diff changeset
398 octave_idx_type step = stride[0];
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
399 octave_idx_type len = dim[0];
17769
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Rik <rik@octave.org>
parents: 17744
diff changeset
400 if (step == 1)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
401 {
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
402 std::copy (src, src + len, dest);
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
403 dest += len;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
404 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
405 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
406 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
407 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
408 dest[i] = src[j];
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
409
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
410 dest += len;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
411 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
412 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
413 else if (use_blk && lev == 1)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
414 dest = blk_trans (src, dest, dim[1], dim[0]);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
415 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
416 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
417 octave_idx_type step = stride[lev];
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
418 octave_idx_type len = dim[lev];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
419 for (octave_idx_type i = 0, j = 0; i < len; i++, j+= step)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
420 dest = do_permute (src + i * step, dest, lev-1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
421 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
422
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
423 return dest;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
424 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
425
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
426 // No copying!
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
427
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
428 rec_permute_helper (const rec_permute_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
429
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
430 rec_permute_helper& operator = (const rec_permute_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
431
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
432 public:
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
433
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
434 template <class T>
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
435 void permute (const T *src, T *dest) const { do_permute (src, dest, top); }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
436 };
7241
da540e715d05 [project @ 2007-12-03 22:55:20 by jwe]
jwe
parents: 7189
diff changeset
437
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
438
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
439 template <class T>
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
440 Array<T>
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
441 Array<T>::permute (const Array<octave_idx_type>& perm_vec_arg, bool inv) const
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
442 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
443 Array<T> retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
444
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
445 Array<octave_idx_type> perm_vec = perm_vec_arg;
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
446
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
447 dim_vector dv = dims ();
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
448
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
449 int perm_vec_len = perm_vec_arg.length ();
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
450
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
451 if (perm_vec_len < dv.length ())
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
452 (*current_liboctave_error_handler)
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
453 ("%s: invalid permutation vector", inv ? "ipermute" : "permute");
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
454
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
455 dim_vector dv_new = dim_vector::alloc (perm_vec_len);
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
456
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
457 // Append singleton dimensions as needed.
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
458 dv.resize (perm_vec_len, 1);
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
459
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
460 // Need this array to check for identical elements in permutation array.
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
461 OCTAVE_LOCAL_BUFFER_INIT (bool, checked, perm_vec_len, false);
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
462
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
463 bool identity = true;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
464
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
465 // Find dimension vector of permuted array.
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
466 for (int i = 0; i < perm_vec_len; i++)
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
467 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
468 octave_idx_type perm_elt = perm_vec.elem (i);
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
469 if (perm_elt >= perm_vec_len || perm_elt < 0)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
470 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
471 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
472 ("%s: permutation vector contains an invalid element",
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
473 inv ? "ipermute" : "permute");
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
474
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
475 return retval;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
476 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
477
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
478 if (checked[perm_elt])
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
479 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
480 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
481 ("%s: permutation vector cannot contain identical elements",
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
482 inv ? "ipermute" : "permute");
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
483
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
484 return retval;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
485 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
486 else
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
487 {
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
488 checked[perm_elt] = true;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
489 identity = identity && perm_elt == i;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
490 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
491 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
492
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
493 if (identity)
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
494 return *this;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
495
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
496 if (inv)
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
497 {
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
498 for (int i = 0; i < perm_vec_len; i++)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
499 perm_vec(perm_vec_arg(i)) = i;
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
500 }
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
501
10270
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
502 for (int i = 0; i < perm_vec_len; i++)
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
503 dv_new(i) = dv(perm_vec(i));
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
504
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
505 retval = Array<T> (dv_new);
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
506
5940
0dd8428bb260 [project @ 2006-08-18 17:50:23 by jwe]
jwe
parents: 5837
diff changeset
507 if (numel () > 0)
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
508 {
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
509 rec_permute_helper rh (dv, perm_vec);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
510 rh.permute (data (), retval.fortran_vec ());
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
511 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
512
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
513 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
514 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
515
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
516 // Helper class for multi-d index reduction and recursive
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
517 // indexing/indexed assignment. Rationale: we could avoid recursion
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
518 // using a state machine instead. However, using recursion is much
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
519 // more amenable to possible parallelization in the future.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
520 // Also, the recursion solution is cleaner and more understandable.
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
521
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
522 class rec_index_helper
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
523 {
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
524 // CDIM occupies the last half of the space allocated for dim to
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
525 // avoid a double allocation.
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
526
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
527 int n;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
528 int top;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
529 octave_idx_type *dim;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
530 octave_idx_type *cdim;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
531 idx_vector *idx;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
532
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
533 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
534 rec_index_helper (const dim_vector& dv, const Array<idx_vector>& ia)
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
535 : n (ia.length ()), top (0), dim (new octave_idx_type [2*n]),
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
536 cdim (dim + n), idx (new idx_vector [n])
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
537 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
538 assert (n > 0 && (dv.length () == std::max (n, 2)));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
539
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
540 dim[0] = dv(0);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
541 cdim[0] = 1;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
542 idx[0] = ia(0);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
543
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
544 for (int i = 1; i < n; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
545 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
546 // Try reduction...
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
547 if (idx[top].maybe_reduce (dim[top], ia(i), dv(i)))
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
548 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
549 // Reduction successful, fold dimensions.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
550 dim[top] *= dv(i);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
551 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
552 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
553 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
554 // Unsuccessful, store index & cumulative dim.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
555 top++;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
556 idx[top] = ia(i);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
557 dim[top] = dv(i);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
558 cdim[top] = cdim[top-1] * dim[top-1];
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
559 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
560 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
561 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
562
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
563 ~rec_index_helper (void) { delete [] idx; delete [] dim; }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
564
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
565 private:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
566
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
567 // Recursive N-d indexing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
568 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
569 T *do_index (const T *src, T *dest, int lev) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
570 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
571 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
572 dest += idx[0].index (src, dim[0], dest);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
573 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
574 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
575 octave_idx_type nn = idx[lev].length (dim[lev]);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
576 octave_idx_type d = cdim[lev];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
577 for (octave_idx_type i = 0; i < nn; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
578 dest = do_index (src + d*idx[lev].xelem (i), dest, lev-1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
579 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
580
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
581 return dest;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
582 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
583
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
584 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
585 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
586 const T *do_assign (const T *src, T *dest, int lev) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
587 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
588 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
589 src += idx[0].assign (src, dim[0], dest);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
590 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
591 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
592 octave_idx_type nn = idx[lev].length (dim[lev]);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
593 octave_idx_type d = cdim[lev];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
594 for (octave_idx_type i = 0; i < nn; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
595 src = do_assign (src, dest + d*idx[lev].xelem (i), lev-1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
596 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
597
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
598 return src;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
599 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
600
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
601 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
602 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
603 void do_fill (const T& val, T *dest, int lev) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
604 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
605 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
606 idx[0].fill (val, dim[0], dest);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
607 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
608 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
609 octave_idx_type nn = idx[lev].length (dim[lev]);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
610 octave_idx_type d = cdim[lev];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
611 for (octave_idx_type i = 0; i < nn; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
612 do_fill (val, dest + d*idx[lev].xelem (i), lev-1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
613 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
614 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
615
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
616 // No copying!
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
617
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
618 rec_index_helper (const rec_index_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
619
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
620 rec_index_helper& operator = (const rec_index_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
621
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
622 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
623
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
624 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
625 void index (const T *src, T *dest) const { do_index (src, dest, top); }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
626
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
627 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
628 void assign (const T *src, T *dest) const { do_assign (src, dest, top); }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
629
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
630 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
631 void fill (const T& val, T *dest) const { do_fill (val, dest, top); }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
632
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
633 bool is_cont_range (octave_idx_type& l,
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
634 octave_idx_type& u) const
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
635 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
636 return top == 0 && idx[0].is_cont_range (dim[0], l, u);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
637 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
638 };
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
639
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
640 // Helper class for multi-d recursive resizing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
641 // This handles resize () in an efficient manner, touching memory only
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
642 // once (apart from reinitialization)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
643 class rec_resize_helper
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
644 {
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
645 octave_idx_type *cext;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
646 octave_idx_type *sext;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
647 octave_idx_type *dext;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
648 int n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
649
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
650 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
651 rec_resize_helper (const dim_vector& ndv, const dim_vector& odv)
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
652 : cext (0), sext (0), dext (0), n (0)
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
653 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
654 int l = ndv.length ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
655 assert (odv.length () == l);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
656 octave_idx_type ld = 1;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
657 int i = 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
658 for (; i < l-1 && ndv(i) == odv(i); i++) ld *= ndv(i);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
659 n = l - i;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
660 cext = new octave_idx_type [3*n];
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
661 // Trick to avoid three allocations
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
662 sext = cext + n;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
663 dext = sext + n;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
664
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
665 octave_idx_type sld = ld;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
666 octave_idx_type dld = ld;
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
667 for (int j = 0; j < n; j++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
668 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
669 cext[j] = std::min (ndv(i+j), odv(i+j));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
670 sext[j] = sld *= odv(i+j);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
671 dext[j] = dld *= ndv(i+j);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
672 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
673 cext[0] *= ld;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
674 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
675
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
676 ~rec_resize_helper (void) { delete [] cext; }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
677
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
678 private:
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
679
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
680 // recursive resizing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
681 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
682 void do_resize_fill (const T* src, T *dest, const T& rfv, int lev) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
683 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
684 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
685 {
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
686 std::copy (src, src+cext[0], dest);
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
687 std::fill_n (dest + cext[0], dext[0] - cext[0], rfv);
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
688 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
689 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
690 {
18099
6c706a83070f Tweak cset 8e056300994b defining 1 var per line in liboctave.
Rik <rik@octave.org>
parents: 18084
diff changeset
691 octave_idx_type sd, dd, k;
6c706a83070f Tweak cset 8e056300994b defining 1 var per line in liboctave.
Rik <rik@octave.org>
parents: 18084
diff changeset
692 sd = sext[lev-1];
6c706a83070f Tweak cset 8e056300994b defining 1 var per line in liboctave.
Rik <rik@octave.org>
parents: 18084
diff changeset
693 dd = dext[lev-1];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
694 for (k = 0; k < cext[lev]; k++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
695 do_resize_fill (src + k * sd, dest + k * dd, rfv, lev - 1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
696
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
697 std::fill_n (dest + k * dd, dext[lev] - k * dd, rfv);
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
698 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
699 }
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
700
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
701 // No copying!
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
702
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
703 rec_resize_helper (const rec_resize_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
704
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
705 rec_resize_helper& operator = (const rec_resize_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
706
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
707 public:
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
708
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
709 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
710 void resize_fill (const T* src, T *dest, const T& rfv) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
711 { do_resize_fill (src, dest, rfv, n-1); }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
712 };
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
713
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
714 template <class T>
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
715 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
716 Array<T>::index (const idx_vector& i) const
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
717 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
718 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
719 Array<T> retval;
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
720
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
721 if (i.is_colon ())
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
722 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
723 // A(:) produces a shallow copy as a column vector.
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
724 retval = Array<T> (*this, dim_vector (n, 1));
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
725 }
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
726 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
727 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
728 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
729 gripe_index_out_of_range (1, 1, i.extent (n), n); // throws
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
730
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
731 // FIXME: this is the only place where orig_dimensions are used.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
732 dim_vector rd = i.orig_dimensions ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
733 octave_idx_type il = i.length (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
734
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
735 // FIXME: this is for Matlab compatibility. Matlab 2007 given
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
736 //
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
737 // b = ones (3,1)
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
738 //
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
739 // yields the following:
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
740 //
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
741 // b(zeros (0,0)) gives []
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
742 // b(zeros (1,0)) gives zeros (0,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
743 // b(zeros (0,1)) gives zeros (0,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
744 // b(zeros (0,m)) gives zeros (0,m)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
745 // b(zeros (m,0)) gives zeros (m,0)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
746 // b(1:2) gives ones (2,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
747 // b(ones (2)) gives ones (2) etc.
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
748 //
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
749 // As you can see, the behaviour is weird, but the tests end up pretty
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
750 // simple. Nah, I don't want to suggest that this is ad hoc :)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
751
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
752 if (ndims () == 2 && n != 1 && rd.is_vector ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
753 {
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
754 if (columns () == 1)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
755 rd = dim_vector (il, 1);
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
756 else if (rows () == 1)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
757 rd = dim_vector (1, il);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
758 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
759
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
760 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
761 if (il != 0 && i.is_cont_range (n, l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
762 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
763 retval = Array<T> (*this, rd, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
764 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
765 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
766 // Don't use resize here to avoid useless initialization for POD
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
767 // types.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
768 retval = Array<T> (rd);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
769
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
770 if (il != 0)
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
771 i.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
772 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
773 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
774
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
775 return retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
776 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
777
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
778 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
779 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
780 Array<T>::index (const idx_vector& i, const idx_vector& j) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
781 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
782 // Get dimensions, allowing Fortran indexing in the 2nd dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
783 dim_vector dv = dimensions.redim (2);
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
784 octave_idx_type r = dv(0);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
785 octave_idx_type c = dv(1);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
786 Array<T> retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
787
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
788 if (i.is_colon () && j.is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
789 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
790 // A(:,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
791 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
792 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
793 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
794 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
795 if (i.extent (r) != r)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
796 gripe_index_out_of_range (2, 1, i.extent (r), r); // throws
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
797 if (j.extent (c) != c)
14158
727504fd26f0 Fix erroneous indexing error message.
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
798 gripe_index_out_of_range (2, 2, j.extent (c), c); // throws
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
799
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
800 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
801 octave_idx_type il = i.length (r);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
802 octave_idx_type jl = j.length (c);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
803
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
804 idx_vector ii (i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
805
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
806 if (ii.maybe_reduce (r, j, c))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
807 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
808 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
809 if (ii.length () > 0 && ii.is_cont_range (n, l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
810 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
811 retval = Array<T> (*this, dim_vector (il, jl), l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
812 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
813 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
814 // Don't use resize to avoid useless initialization for POD types.
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
815 retval = Array<T> (dim_vector (il, jl));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
816
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
817 ii.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
818 }
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
819 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
820 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
821 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
822 // Don't use resize to avoid useless initialization for POD types.
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
823 retval = Array<T> (dim_vector (il, jl));
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
824
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
825 const T* src = data ();
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
826 T *dest = retval.fortran_vec ();
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
827
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
828 for (octave_idx_type k = 0; k < jl; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
829 dest += i.index (src + r * j.xelem (k), r, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
830 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
831 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
832
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
833 return retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
834 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
835
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
836 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
837 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
838 Array<T>::index (const Array<idx_vector>& ia) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
839 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
840 int ial = ia.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
841 Array<T> retval;
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
842
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
843 // FIXME: is this dispatching necessary?
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
844 if (ial == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
845 retval = index (ia(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
846 else if (ial == 2)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
847 retval = index (ia(0), ia(1));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
848 else if (ial > 0)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
849 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
850 // Get dimensions, allowing Fortran indexing in the last dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
851 dim_vector dv = dimensions.redim (ial);
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
852
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
853 // Check for out of bounds conditions.
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
854 bool all_colons = true;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
855 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
856 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
857 if (ia(i).extent (dv(i)) != dv(i))
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
858 gripe_index_out_of_range (ial, i+1, ia(i).extent (dv(i)), dv(i)); // throws
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
859
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
860 all_colons = all_colons && ia(i).is_colon ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
861 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
862
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
863
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
864 if (all_colons)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
865 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
866 // A(:,:,...,:) produces a shallow copy.
10095
eb8ac0eed9f1 always chop dimension vector when constructing Arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 10075
diff changeset
867 dv.chop_trailing_singletons ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
868 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
869 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
870 else
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
871 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
872 // Form result dimensions.
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
873 dim_vector rdv = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
874 for (int i = 0; i < ial; i++) rdv(i) = ia(i).length (dv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
875 rdv.chop_trailing_singletons ();
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
876
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
877 // Prepare for recursive indexing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
878 rec_index_helper rh (dv, ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
879
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
880 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
881 if (rh.is_cont_range (l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
882 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
883 retval = Array<T> (*this, rdv, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
884 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
885 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
886 // Don't use resize to avoid useless initialization for POD types.
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
887 retval = Array<T> (rdv);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
888
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
889 // Do it.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
890 rh.index (data (), retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
891 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
892 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
893 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
894
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
895 return retval;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
896 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
897
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
898 // The default fill value. Override if you want a different one.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
899
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
900 template <class T>
14616
13cc11418393 improve handling of default resize fill value for arrays
John W. Eaton <jwe@octave.org>
parents: 14591
diff changeset
901 T
13cc11418393 improve handling of default resize fill value for arrays
John W. Eaton <jwe@octave.org>
parents: 14591
diff changeset
902 Array<T>::resize_fill_value (void) const
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
903 {
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
904 static T zero = T ();
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
905 return zero;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
906 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
907
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
908 // Yes, we could do resize using index & assign. However, that would
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
909 // possibly involve a lot more memory traffic than we actually need.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
910
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
911 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
912 void
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
913 Array<T>::resize1 (octave_idx_type n, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
914 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
915 if (n >= 0 && ndims () == 2)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
916 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
917 dim_vector dv;
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
918 // This is driven by Matlab's behaviour of giving a *row* vector
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
919 // on some out-of-bounds assignments. Specifically, Matlab
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
920 // allows a(i) with out-of-bouds i when a is either of 0x0, 1x0,
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
921 // 1x1, 0xN, and gives a row vector in all cases (yes, even the
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
922 // last one, search me why). Giving a column vector would make
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
923 // much more sense (given the way trailing singleton dims are
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
924 // treated).
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
925 bool invalid = false;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
926 if (rows () == 0 || rows () == 1)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
927 dv = dim_vector (1, n);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
928 else if (columns () == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
929 dv = dim_vector (n, 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
930 else
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
931 invalid = true;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
932
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
933 if (invalid)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
934 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
935 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
936 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
937 octave_idx_type nx = numel ();
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
938 if (n == nx - 1 && n > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
939 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
940 // Stack "pop" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
941 if (rep->count == 1)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
942 slice_data[slice_len-1] = T ();
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
943 slice_len--;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
944 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
945 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
946 else if (n == nx + 1 && nx > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
947 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
948 // Stack "push" operation.
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
949 if (rep->count == 1
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
950 && slice_data + slice_len < rep->data + rep->len)
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
951 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
952 slice_data[slice_len++] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
953 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
954 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
955 else
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
956 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
957 static const octave_idx_type max_stack_chunk = 1024;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
958 octave_idx_type nn = n + std::min (nx, max_stack_chunk);
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
959 Array<T> tmp (Array<T> (dim_vector (nn, 1)), dv, 0, n);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
960 T *dest = tmp.fortran_vec ();
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
961
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
962 std::copy (data (), data () + nx, dest);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
963 dest[nx] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
964
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
965 *this = tmp;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
966 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
967 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
968 else if (n != nx)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
969 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
970 Array<T> tmp = Array<T> (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
971 T *dest = tmp.fortran_vec ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
972
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
973 octave_idx_type n0 = std::min (n, nx);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
974 octave_idx_type n1 = n - n0;
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
975 std::copy (data (), data () + n0, dest);
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
976 std::fill_n (dest + n0, n1, rfv);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
977
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
978 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
979 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
980 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
981 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
982 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
983 gripe_invalid_resize ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
984 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
985
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
986 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
987 void
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
988 Array<T>::resize2 (octave_idx_type r, octave_idx_type c, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
989 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
990 if (r >= 0 && c >= 0 && ndims () == 2)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
991 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
992 octave_idx_type rx = rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
993 octave_idx_type cx = columns ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
994 if (r != rx || c != cx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
995 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
996 Array<T> tmp = Array<T> (dim_vector (r, c));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
997 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
998
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
999 octave_idx_type r0 = std::min (r, rx);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1000 octave_idx_type r1 = r - r0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1001 octave_idx_type c0 = std::min (c, cx);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1002 octave_idx_type c1 = c - c0;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1003 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1004 if (r == rx)
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1005 {
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
1006 std::copy (src, src + r * c0, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1007 dest += r * c0;
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1008 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1009 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1010 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1011 for (octave_idx_type k = 0; k < c0; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1012 {
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
1013 std::copy (src, src + r0, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1014 src += rx;
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1015 dest += r0;
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
1016 std::fill_n (dest, r1, rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1017 dest += r1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1018 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1019 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1020
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
1021 std::fill_n (dest, r * c1, rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1022
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1023 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1024 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1025 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1026 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1027 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1028
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1029 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1030
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1031 template<class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1032 void
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1033 Array<T>::resize (const dim_vector& dv, const T& rfv)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1034 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1035 int dvl = dv.length ();
8784
374cb30311a8 remove dead branch in Array.cc
Jaroslav Hajek <highegg@gmail.com>
parents: 8760
diff changeset
1036 if (dvl == 2)
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
1037 resize2 (dv(0), dv(1), rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1038 else if (dimensions != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1039 {
8799
f6dc6eb57045 improve resize & resize on assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 8784
diff changeset
1040 if (dimensions.length () <= dvl && ! dv.any_neg ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1041 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1042 Array<T> tmp (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1043 // Prepare for recursive resizing.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1044 rec_resize_helper rh (dv, dimensions.redim (dvl));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1045
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1046 // Do it.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1047 rh.resize_fill (data (), tmp.fortran_vec (), rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1048 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1049 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1050 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1051 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1052 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1053 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1054
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1055 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1056 Array<T>
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1057 Array<T>::index (const idx_vector& i, bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1058 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1059 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1060 if (resize_ok)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1061 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1062 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1063 octave_idx_type nx = i.extent (n);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1064 if (n != nx)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1065 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1066 if (i.is_scalar ())
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1067 return Array<T> (dim_vector (1, 1), rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1068 else
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1069 tmp.resize1 (nx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1070 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1071
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1072 if (tmp.numel () != nx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1073 return Array<T> ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1074 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1075
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1076 return tmp.index (i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1077 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1078
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1079 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1080 Array<T>
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1081 Array<T>::index (const idx_vector& i, const idx_vector& j,
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1082 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1083 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1084 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1085 if (resize_ok)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1086 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1087 dim_vector dv = dimensions.redim (2);
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1088 octave_idx_type r = dv(0);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1089 octave_idx_type c = dv(1);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1090 octave_idx_type rx = i.extent (r);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1091 octave_idx_type cx = j.extent (c);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1092 if (r != rx || c != cx)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1093 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1094 if (i.is_scalar () && j.is_scalar ())
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1095 return Array<T> (dim_vector (1, 1), rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1096 else
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
1097 tmp.resize2 (rx, cx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1098 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1099
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1100 if (tmp.rows () != rx || tmp.columns () != cx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1101 return Array<T> ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1102 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1103
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1104 return tmp.index (i, j);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1105 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1106
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1107 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1108 Array<T>
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1109 Array<T>::index (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1110 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1111 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1112 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1113 if (resize_ok)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1114 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1115 int ial = ia.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1116 dim_vector dv = dimensions.redim (ial);
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1117 dim_vector dvx = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1118 for (int i = 0; i < ial; i++) dvx(i) = ia(i).extent (dv (i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1119 if (! (dvx == dv))
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1120 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1121 bool all_scalars = true;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1122 for (int i = 0; i < ial; i++)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1123 all_scalars = all_scalars && ia(i).is_scalar ();
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1124 if (all_scalars)
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1125 return Array<T> (dim_vector (1, 1), rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1126 else
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1127 tmp.resize (dvx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1128 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1129
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1130 if (tmp.dimensions != dvx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1131 return Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1132 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1133
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1134 return tmp.index (ia);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1135 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1136
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1137
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1138 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1139 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1140 Array<T>::assign (const idx_vector& i, const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1141 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1142 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1143 octave_idx_type rhl = rhs.numel ();
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1144
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1145 if (rhl == 1 || i.length (n) == rhl)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1146 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1147 octave_idx_type nx = i.extent (n);
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1148 bool colon = i.is_colon_equiv (nx);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1149 // Try to resize first if necessary.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1150 if (nx != n)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1151 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1152 // Optimize case A = []; A(1:n) = X with A empty.
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1153 if (dimensions.zero_by_zero () && colon)
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1154 {
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1155 if (rhl == 1)
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1156 *this = Array<T> (dim_vector (1, nx), rhs(0));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1157 else
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1158 *this = Array<T> (rhs, dim_vector (1, nx));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1159 return;
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1160 }
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1161
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1162 resize1 (nx, rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1163 n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1164 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1165
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1166 if (colon)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1167 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1168 // A(:) = X makes a full fill or a shallow copy.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1169 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1170 fill (rhs(0));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1171 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1172 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1173 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1174 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1175 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1176 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1177 i.fill (rhs(0), n, fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1178 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1179 i.assign (rhs.data (), n, fortran_vec ());
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1180 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1181 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1182 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1183 gripe_invalid_assignment_size ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1184 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1185
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1186 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1187 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1188 Array<T>::assign (const idx_vector& i, const idx_vector& j,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1189 const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1190 {
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1191 bool initial_dims_all_zero = dimensions.all_zero ();
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1192
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1193 // Get RHS extents, discarding singletons.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1194 dim_vector rhdv = rhs.dims ();
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1195
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1196 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1197 dim_vector dv = dimensions.redim (2);
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1198
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1199 // Check for out-of-bounds and form resizing dimensions.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1200 dim_vector rdv;
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1201
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1202 // In the special when all dimensions are zero, colons are allowed
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1203 // to inquire the shape of RHS. The rules are more obscure, so we
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1204 // solve that elsewhere.
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1205 if (initial_dims_all_zero)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1206 rdv = zero_dims_inquire (i, j, rhdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1207 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1208 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1209 rdv(0) = i.extent (dv(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1210 rdv(1) = j.extent (dv(1));
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1211 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1212
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1213 bool isfill = rhs.numel () == 1;
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1214 octave_idx_type il = i.length (rdv(0));
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1215 octave_idx_type jl = j.length (rdv(1));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1216 rhdv.chop_all_singletons ();
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1217 bool match = (isfill
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1218 || (rhdv.length () == 2 && il == rhdv(0) && jl == rhdv(1)));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1219 match = match || (il == 1 && jl == rhdv(0) && rhdv(1) == 1);
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1220
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1221 if (match)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1222 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1223 bool all_colons = (i.is_colon_equiv (rdv(0))
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1224 && j.is_colon_equiv (rdv(1)));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1225 // Resize if requested.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1226 if (rdv != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1227 {
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1228 // Optimize case A = []; A(1:m, 1:n) = X
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1229 if (dv.zero_by_zero () && all_colons)
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1230 {
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1231 if (isfill)
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1232 *this = Array<T> (rdv, rhs(0));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1233 else
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1234 *this = Array<T> (rhs, rdv);
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1235 return;
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1236 }
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1237
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1238 resize (rdv, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1239 dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1240 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1241
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1242 if (all_colons)
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1243 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1244 // A(:,:) = X makes a full fill or a shallow copy
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1245 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1246 fill (rhs(0));
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1247 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1248 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1249 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1250 else
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1251 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1252 // The actual work.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1253 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1254 octave_idx_type r = dv(0);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1255 octave_idx_type c = dv(1);
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1256 idx_vector ii (i);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1257
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1258 const T* src = rhs.data ();
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1259 T *dest = fortran_vec ();
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1260
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1261 // Try reduction first.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1262 if (ii.maybe_reduce (r, j, c))
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1263 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1264 if (isfill)
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1265 ii.fill (*src, n, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1266 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1267 ii.assign (src, n, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1268 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1269 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1270 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1271 if (isfill)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1272 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1273 for (octave_idx_type k = 0; k < jl; k++)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1274 i.fill (*src, r, dest + r * j.xelem (k));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1275 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1276 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1277 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1278 for (octave_idx_type k = 0; k < jl; k++)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1279 src += i.assign (src, r, dest + r * j.xelem (k));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1280 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1281 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1282 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1283 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1284 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1285 gripe_assignment_dimension_mismatch ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1286 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1287
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1288 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1289 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1290 Array<T>::assign (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1291 const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1292 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1293 int ial = ia.length ();
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1294
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1295 // FIXME: is this dispatching necessary / desirable?
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1296 if (ial == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1297 assign (ia(0), rhs, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1298 else if (ial == 2)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1299 assign (ia(0), ia(1), rhs, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1300 else if (ial > 0)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1301 {
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1302 bool initial_dims_all_zero = dimensions.all_zero ();
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1303
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1304 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1305 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1306
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1307 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1308 dim_vector dv = dimensions.redim (ial);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1309
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1310 // Get the extents forced by indexing.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1311 dim_vector rdv;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1312
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1313 // In the special when all dimensions are zero, colons are
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1314 // allowed to inquire the shape of RHS. The rules are more
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1315 // obscure, so we solve that elsewhere.
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1316 if (initial_dims_all_zero)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1317 rdv = zero_dims_inquire (ia, rhdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1318 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1319 {
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1320 rdv = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1321 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1322 rdv(i) = ia(i).extent (dv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1323 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1324
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1325 // Check whether LHS and RHS match, up to singleton dims.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1326 bool match = true;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1327 bool all_colons = true;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1328 bool isfill = rhs.numel () == 1;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1329
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1330 rhdv.chop_all_singletons ();
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1331 int j = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1332 int rhdvl = rhdv.length ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1333 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1334 {
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1335 all_colons = all_colons && ia(i).is_colon_equiv (rdv(i));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1336 octave_idx_type l = ia(i).length (rdv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1337 if (l == 1) continue;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1338 match = match && j < rhdvl && l == rhdv(j++);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1339 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1340
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1341 match = match && (j == rhdvl || rhdv(j) == 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1342 match = match || isfill;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1343
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1344 if (match)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1345 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1346 // Resize first if necessary.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1347 if (rdv != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1348 {
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1349 // Optimize case A = []; A(1:m, 1:n) = X
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1350 if (dv.zero_by_zero () && all_colons)
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1351 {
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1352 rdv.chop_trailing_singletons ();
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1353 if (isfill)
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1354 *this = Array<T> (rdv, rhs(0));
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1355 else
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1356 *this = Array<T> (rhs, rdv);
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1357 return;
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1358 }
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1359
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1360 resize (rdv, rfv);
10095
eb8ac0eed9f1 always chop dimension vector when constructing Arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 10075
diff changeset
1361 dv = rdv;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1362 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1363
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1364 if (all_colons)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1365 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1366 // A(:,:,...,:) = X makes a full fill or a shallow copy.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1367 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1368 fill (rhs(0));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1369 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1370 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1371 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1372 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1373 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1374 // Do the actual work.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1375
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1376 // Prepare for recursive indexing
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1377 rec_index_helper rh (dv, ia);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1378
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1379 // Do it.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1380 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1381 rh.fill (rhs(0), fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1382 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1383 rh.assign (rhs.data (), fortran_vec ());
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1384 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1385 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1386 else
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1387 gripe_assignment_dimension_mismatch ();
4553
c7eb767505e9 [project @ 2003-10-27 21:39:55 by jwe]
jwe
parents: 4548
diff changeset
1388 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1389 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1390
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1391 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1392 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1393 Array<T>::delete_elements (const idx_vector& i)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1394 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1395 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1396 if (i.is_colon ())
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1397 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1398 *this = Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1399 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1400 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1401 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1402 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1403 gripe_del_index_out_of_range (true, i.extent (n), n);
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1404
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1405 octave_idx_type l, u;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1406 bool col_vec = ndims () == 2 && columns () == 1 && rows () != 1;
10610
f5f6bde82e19 fix null assignment bug #29785
Jaroslav Hajek <highegg@gmail.com>
parents: 10535
diff changeset
1407 if (i.is_scalar () && i(0) == n-1 && dimensions.is_vector ())
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1408 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1409 // Stack "pop" operation.
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1410 resize1 (n-1);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1411 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1412 else if (i.is_cont_range (n, l, u))
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1413 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1414 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1415 octave_idx_type m = n + l - u;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1416 Array<T> tmp (dim_vector (col_vec ? m : 1, !col_vec ? m : 1));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1417 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1418 T *dest = tmp.fortran_vec ();
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
1419 std::copy (src, src + l, dest);
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
1420 std::copy (src + u, src + n, dest + l);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1421 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1422 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1423 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1424 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1425 // Use index.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1426 *this = index (i.complement (n));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1427 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1428 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1429 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1430
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1431 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1432 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1433 Array<T>::delete_elements (int dim, const idx_vector& i)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1434 {
8302
f2e050b62199 fix dim check in Array<T>::delete_elements
Jaroslav Hajek <highegg@gmail.com>
parents: 8290
diff changeset
1435 if (dim < 0 || dim >= ndims ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1436 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1437 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1438 ("invalid dimension in delete_elements");
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1439 return;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1440 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1441
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1442 octave_idx_type n = dimensions (dim);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1443 if (i.is_colon ())
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1444 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1445 *this = Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1446 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1447 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1448 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1449 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1450 gripe_del_index_out_of_range (false, i.extent (n), n);
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1451
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1452 octave_idx_type l, u;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1453
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1454 if (i.is_cont_range (n, l, u))
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1455 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1456 // Special case deleting a contiguous range.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1457 octave_idx_type nd = n + l - u;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1458 octave_idx_type dl = 1;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1459 octave_idx_type du = 1;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1460 dim_vector rdv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1461 rdv(dim) = nd;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1462 for (int k = 0; k < dim; k++) dl *= dimensions(k);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1463 for (int k = dim + 1; k < ndims (); k++) du *= dimensions(k);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1464
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1465 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1466 Array<T> tmp = Array<T> (rdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1467 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1468 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1469 l *= dl; u *= dl; n *= dl;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1470 for (octave_idx_type k = 0; k < du; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1471 {
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
1472 std::copy (src, src + l, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1473 dest += l;
19381
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18146
diff changeset
1474 std::copy (src + u, src + n, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1475 dest += n - u;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1476 src += n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1477 }
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
1478
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1479 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1480 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1481 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1482 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1483 // Use index.
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1484 Array<idx_vector> ia (dim_vector (ndims (), 1), idx_vector::colon);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1485 ia (dim) = i.complement (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1486 *this = index (ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1487 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1488 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1489 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1490
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1491 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1492 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1493 Array<T>::delete_elements (const Array<idx_vector>& ia)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1494 {
17642
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1495 int ial = ia.length ();
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1496
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1497 if (ial == 1)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1498 delete_elements (ia(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1499 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1500 {
17642
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1501 int k, dim = -1;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1502 for (k = 0; k < ial; k++)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1503 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1504 if (! ia(k).is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1505 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1506 if (dim < 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1507 dim = k;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1508 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1509 break;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1510 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1511 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1512 if (dim < 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1513 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1514 dim_vector dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1515 dv(0) = 0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1516 *this = Array<T> (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1517 }
17642
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1518 else if (k == ial)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1519 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1520 delete_elements (dim, ia(dim));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1521 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1522 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1523 {
17642
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1524 // Allow the null assignment to succeed if it won't change
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1525 // anything because the indices reference an empty slice,
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1526 // provided that there is at most one non-colon (or
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1527 // equivalent) index. So, we still have the requirement of
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1528 // deleting a slice, but it is OK if the slice is empty.
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1529
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1530 // For compatibility with Matlab, stop checking once we see
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1531 // more than one non-colon index or an empty index. Matlab
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1532 // considers "[]" to be an empty index but not "false". We
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1533 // accept both.
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1534
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1535 bool empty_assignment = false;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1536
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1537 int num_non_colon_indices = 0;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1538
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1539 int nd = ndims ();
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1540
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1541 for (int i = 0; i < ial; i++)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1542 {
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1543 octave_idx_type dim_len = i >= nd ? 1 : dimensions(i);
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1544
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1545 if (ia(i).length (dim_len) == 0)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1546 {
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1547 empty_assignment = true;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1548 break;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1549 }
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1550
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1551 if (! ia(i).is_colon_equiv (dim_len))
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1552 {
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1553 num_non_colon_indices++;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1554
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1555 if (num_non_colon_indices == 2)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1556 break;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1557 }
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1558 }
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1559
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1560 if (! empty_assignment)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1561 (*current_liboctave_error_handler)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1562 ("a null assignment can only have one non-colon index");
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1563 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1564 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1565
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1566 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1567
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1568 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1569 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1570 Array<T>::insert (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1571 {
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1572 idx_vector i (r, r + a.rows ());
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1573 idx_vector j (c, c + a.columns ());
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1574 if (ndims () == 2 && a.ndims () == 2)
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1575 assign (i, j, a);
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1576 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1577 {
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1578 Array<idx_vector> idx (dim_vector (a.ndims (), 1));
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1579 idx(0) = i;
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1580 idx(1) = j;
12884
73e75ff9c31b Fix incorrect loop (bug #32683)
Jordi Gutiérrez Hermoso <jordigh@gmail.com>
parents: 12550
diff changeset
1581 for (int k = 2; k < a.ndims (); k++)
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1582 idx(k) = idx_vector (0, a.dimensions(k));
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1583 assign (idx, a);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1584 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1585
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1586 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1587 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1588
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1589 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1590 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1591 Array<T>::insert (const Array<T>& a, const Array<octave_idx_type>& ra_idx)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1592 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1593 octave_idx_type n = ra_idx.length ();
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1594 Array<idx_vector> idx (dim_vector (n, 1));
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1595 const dim_vector dva = a.dims ().redim (n);
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1596 for (octave_idx_type k = 0; k < n; k++)
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1597 idx(k) = idx_vector (ra_idx (k), ra_idx (k) + dva(k));
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1598
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1599 assign (idx, a);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1600
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1601 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1602 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1603
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1604
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1605 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1606 Array<T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1607 Array<T>::transpose (void) const
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1608 {
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1609 assert (ndims () == 2);
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1610
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1611 octave_idx_type nr = dim1 ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1612 octave_idx_type nc = dim2 ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1613
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1614 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1615 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1616 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1617
9121
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1618 // Reuse the implementation used for permuting.
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1619
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1620 rec_permute_helper::blk_trans (data (), result.fortran_vec (), nr, nc);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1621
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1622 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1623 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1624 else if (nr > 1 && nc > 1)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1625 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1626 Array<T> result (dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1627
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1628 for (octave_idx_type j = 0; j < nc; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1629 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1630 result.xelem (j, i) = xelem (i, j);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1631
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1632 return result;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1633 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1634 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1635 {
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1636 // Fast transpose for vectors and empty matrices.
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1637 return Array<T> (*this, dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1638 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1639 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1640
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1641 template <class T>
8028
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1642 static T
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1643 no_op_fcn (const T& x)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1644 {
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1645 return x;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1646 }
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1647
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1648 template <class T>
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1649 Array<T>
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1650 Array<T>::hermitian (T (*fcn) (const T&)) const
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1651 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1652 assert (ndims () == 2);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1653
8028
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1654 if (! fcn)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1655 fcn = no_op_fcn<T>;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1656
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1657 octave_idx_type nr = dim1 ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1658 octave_idx_type nc = dim2 ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1659
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1660 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1661 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1662 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1663
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1664 // Blocked transpose to attempt to avoid cache misses.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1665
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1666 // Don't use OCTAVE_LOCAL_BUFFER here as it doesn't work with bool
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1667 // on some compilers.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1668 T buf[64];
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1669
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1670 octave_idx_type ii = 0, jj;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1671 for (jj = 0; jj < (nc - 8 + 1); jj += 8)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1672 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1673 for (ii = 0; ii < (nr - 8 + 1); ii += 8)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1674 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1675 // Copy to buffer
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1676 for (octave_idx_type j = jj, k = 0, idxj = jj * nr;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1677 j < jj + 8; j++, idxj += nr)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1678 for (octave_idx_type i = ii; i < ii + 8; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1679 buf[k++] = xelem (i + idxj);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1680
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1681 // Copy from buffer
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1682 for (octave_idx_type i = ii, idxi = ii * nc; i < ii + 8;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1683 i++, idxi += nc)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1684 for (octave_idx_type j = jj, k = i - ii; j < jj + 8;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1685 j++, k+=8)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1686 result.xelem (j + idxi) = fcn (buf[k]);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1687 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1688
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1689 if (ii < nr)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1690 for (octave_idx_type j = jj; j < jj + 8; j++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1691 for (octave_idx_type i = ii; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1692 result.xelem (j, i) = fcn (xelem (i, j));
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1693 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1694
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1695 for (octave_idx_type j = jj; j < nc; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1696 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1697 result.xelem (j, i) = fcn (xelem (i, j));
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1698
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1699 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1700 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1701 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1702 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1703 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1704
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1705 for (octave_idx_type j = 0; j < nc; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1706 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1707 result.xelem (j, i) = fcn (xelem (i, j));
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1708
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1709 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1710 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1711 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1712
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1713 /*
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1714
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1715 %% Tranpose tests for matrices of the tile size and plus or minus a row
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1716 %% and with four tiles.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1717
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1718 %!shared m7, mt7, m8, mt8, m9, mt9
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1719 %! m7 = reshape (1 : 7*8, 8, 7);
7796
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1720 %! mt7 = [1:8; 9:16; 17:24; 25:32; 33:40; 41:48; 49:56];
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1721 %! m8 = reshape (1 : 8*8, 8, 8);
7796
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1722 %! mt8 = mt8 = [mt7; 57:64];
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1723 %! m9 = reshape (1 : 9*8, 8, 9);
7796
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1724 %! mt9 = [mt8; 65:72];
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1725
14427
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1726 %!assert (m7', mt7)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1727 %!assert ((1i*m7).', 1i * mt7)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1728 %!assert ((1i*m7)', conj (1i * mt7))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1729 %!assert (m8', mt8)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1730 %!assert ((1i*m8).', 1i * mt8)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1731 %!assert ((1i*m8)', conj (1i * mt8))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1732 %!assert (m9', mt9)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1733 %!assert ((1i*m9).', 1i * mt9)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1734 %!assert ((1i*m9)', conj (1i * mt9))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1735 %!assert ([m7, m8; m7, m8]', [mt7, mt7; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1736 %!assert ((1i*[m7, m8; m7, m8]).', 1i * [mt7, mt7; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1737 %!assert ((1i*[m7, m8; m7, m8])', conj (1i * [mt7, mt7; mt8, mt8]))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1738 %!assert ([m8, m8; m8, m8]', [mt8, mt8; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1739 %!assert ((1i*[m8, m8; m8, m8]).', 1i * [mt8, mt8; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1740 %!assert ((1i*[m8, m8; m8, m8])', conj (1i * [mt8, mt8; mt8, mt8]))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1741 %!assert ([m9, m8; m9, m8]', [mt9, mt9; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1742 %!assert ((1i*[m9, m8; m9, m8]).', 1i * [mt9, mt9; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1743 %!assert ((1i*[m9, m8; m9, m8])', conj (1i * [mt9, mt9; mt8, mt8]))
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1744
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1745 */
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1746
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1747 template <class T>
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1748 T *
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1749 Array<T>::fortran_vec (void)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1750 {
6881
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe]
jwe
parents: 6867
diff changeset
1751 make_unique ();
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe]
jwe
parents: 6867
diff changeset
1752
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1753 return slice_data;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1754 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1755
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1756 // Non-real types don't have NaNs.
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1757 template <class T>
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1758 inline bool
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1759 sort_isnan (typename ref_param<T>::type)
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1760 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1761 return false;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1762 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1763
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1764 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1765 Array<T>
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
1766 Array<T>::sort (int dim, sortmode mode) const
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1767 {
10703
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
1768 if (dim < 0)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1769 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1770 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1771 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1772 return Array<T> ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1773 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1774
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1775 Array<T> m (dims ());
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1776
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1777 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1778
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1779 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1780 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1781
10703
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
1782 if (dim >= dv.length ())
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
1783 dv.resize (dim+1, 1);
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
1784
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1785 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1786 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1787 octave_idx_type stride = 1;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
1788
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1789 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1790 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1791
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1792 T *v = m.fortran_vec ();
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1793 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1794
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1795 octave_sort<T> lsort;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1796
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1797 if (mode != UNSORTED)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1798 lsort.set_compare (mode);
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7443
diff changeset
1799 else
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1800 return m;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1801
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1802 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1803 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1804 for (octave_idx_type j = 0; j < iter; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1805 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1806 // copy and partition out NaNs.
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1807 // FIXME: impact on integer types noticeable?
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1808 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1809 octave_idx_type ku = ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1810 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1811 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1812 T tmp = ov[i];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1813 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1814 v[--ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1815 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1816 v[kl++] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1817 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1818
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1819 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1820 lsort.sort (v, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1821
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1822 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1823 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1824 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1825 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1826 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1827 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1828 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1829
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1830 v += ns;
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1831 ov += ns;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1832 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1833 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1834 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1835 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1836 OCTAVE_LOCAL_BUFFER (T, buf, ns);
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1837
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1838 for (octave_idx_type j = 0; j < iter; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1839 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1840 octave_idx_type offset = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1841 octave_idx_type offset2 = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1842
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1843 while (offset >= stride)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1844 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1845 offset -= stride;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1846 offset2++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1847 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1848
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1849 offset += offset2 * stride * ns;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1850
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1851 // gather and partition out NaNs.
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1852 // FIXME: impact on integer types noticeable?
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1853 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1854 octave_idx_type ku = ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1855 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1856 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1857 T tmp = ov[i*stride + offset];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1858 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1859 buf[--ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1860 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1861 buf[kl++] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1862 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1863
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1864 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1865 lsort.sort (buf, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1866
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1867 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1868 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1869 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1870 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1871 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1872 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1873 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1874
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1875 // scatter.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1876 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1877 v[i*stride + offset] = buf[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1878 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1879 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1880
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1881 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1882 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1883
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1884 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1885 Array<T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1886 Array<T>::sort (Array<octave_idx_type> &sidx, int dim,
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1887 sortmode mode) const
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1888 {
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1889 if (dim < 0 || dim >= ndims ())
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1890 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1891 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1892 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1893 return Array<T> ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1894 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1895
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1896 Array<T> m (dims ());
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1897
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1898 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1899
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1900 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1901 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1902 sidx = Array<octave_idx_type> (dv);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1903 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1904 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1905
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1906 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1907 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1908 octave_idx_type stride = 1;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
1909
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1910 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1911 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1912
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1913 T *v = m.fortran_vec ();
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1914 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1915
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1916 octave_sort<T> lsort;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1917
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1918 sidx = Array<octave_idx_type> (dv);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1919 octave_idx_type *vi = sidx.fortran_vec ();
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1920
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1921 if (mode != UNSORTED)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1922 lsort.set_compare (mode);
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7443
diff changeset
1923 else
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1924 return m;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1925
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1926 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1927 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1928 for (octave_idx_type j = 0; j < iter; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1929 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1930 // copy and partition out NaNs.
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1931 // FIXME: impact on integer types noticeable?
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1932 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1933 octave_idx_type ku = ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1934 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1935 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1936 T tmp = ov[i];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1937 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1938 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1939 --ku;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1940 v[ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1941 vi[ku] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1942 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1943 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1944 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1945 v[kl] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1946 vi[kl] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1947 kl++;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1948 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1949 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1950
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1951 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1952 lsort.sort (v, vi, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1953
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1954 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1955 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1956 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1957 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1958 std::reverse (vi + ku, vi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1959 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1960 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1961 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1962 std::rotate (vi, vi + ku, vi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1963 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1964 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1965
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1966 v += ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1967 vi += ns;
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1968 ov += ns;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1969 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1970 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1971 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1972 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1973 OCTAVE_LOCAL_BUFFER (T, buf, ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1974 OCTAVE_LOCAL_BUFFER (octave_idx_type, bufi, ns);
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1975
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1976 for (octave_idx_type j = 0; j < iter; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1977 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1978 octave_idx_type offset = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1979 octave_idx_type offset2 = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1980
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1981 while (offset >= stride)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1982 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1983 offset -= stride;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1984 offset2++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1985 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1986
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1987 offset += offset2 * stride * ns;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1988
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1989 // gather and partition out NaNs.
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1990 // FIXME: impact on integer types noticeable?
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1991 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1992 octave_idx_type ku = ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1993 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1994 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1995 T tmp = ov[i*stride + offset];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1996 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1997 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1998 --ku;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1999 buf[ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2000 bufi[ku] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2001 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2002 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2003 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2004 buf[kl] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2005 bufi[kl] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2006 kl++;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2007 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2008 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2009
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2010 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2011 lsort.sort (buf, bufi, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2012
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2013 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2014 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2015 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2016 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2017 std::reverse (bufi + ku, bufi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2018 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2019 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2020 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2021 std::rotate (bufi, bufi + ku, bufi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2022 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2023 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2024
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2025 // scatter.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2026 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2027 v[i*stride + offset] = buf[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2028 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2029 vi[i*stride + offset] = bufi[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2030 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2031 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2032
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2033 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2034 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2035
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2036 template <class T>
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2037 typename Array<T>::compare_fcn_type
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2038 safe_comparator (sortmode mode, const Array<T>& /* a */,
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2039 bool /* allow_chk */)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2040 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2041 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2042 return octave_sort<T>::ascending_compare;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2043 else if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2044 return octave_sort<T>::descending_compare;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2045 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2046 return 0;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2047 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2048
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2049 template <class T>
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2050 sortmode
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2051 Array<T>::is_sorted (sortmode mode) const
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2052 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2053 octave_sort<T> lsort;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2054
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2055 octave_idx_type n = numel ();
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2056
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2057 if (n <= 1)
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2058 return mode ? mode : ASCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2059
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2060 if (mode == UNSORTED)
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2061 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2062 // Auto-detect mode.
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2063 compare_fcn_type compare
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2064 = safe_comparator (ASCENDING, *this, false);
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2065
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2066 if (compare (elem (n-1), elem (0)))
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2067 mode = DESCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2068 else
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2069 mode = ASCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2070 }
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2071
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2072 if (mode != UNSORTED)
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2073 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2074 lsort.set_compare (safe_comparator (mode, *this, false));
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2075
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2076 if (! lsort.is_sorted (data (), n))
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2077 mode = UNSORTED;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2078 }
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2079
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2080 return mode;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2081
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2082 }
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2083
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2084 template <class T>
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2085 Array<octave_idx_type>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2086 Array<T>::sort_rows_idx (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2087 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2088 Array<octave_idx_type> idx;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2089
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2090 octave_sort<T> lsort (safe_comparator (mode, *this, true));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2091
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2092 octave_idx_type r = rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2093 octave_idx_type c = cols ();
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2094
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2095 idx = Array<octave_idx_type> (dim_vector (r, 1));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2096
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2097 lsort.sort_rows (data (), idx.fortran_vec (), r, c);
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2098
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2099 return idx;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2100 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2101
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2102
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2103 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2104 sortmode
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2105 Array<T>::is_sorted_rows (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2106 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2107 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2108
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2109 octave_idx_type r = rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2110 octave_idx_type c = cols ();
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2111
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2112 if (r <= 1 || c == 0)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2113 return mode ? mode : ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2114
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2115 if (mode == UNSORTED)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2116 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2117 // Auto-detect mode.
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2118 compare_fcn_type compare
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2119 = safe_comparator (ASCENDING, *this, false);
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2120
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2121 octave_idx_type i;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2122 for (i = 0; i < cols (); i++)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2123 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2124 T l = elem (0, i);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2125 T u = elem (rows () - 1, i);
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2126 if (compare (l, u))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2127 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2128 if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2129 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2130 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2131 break;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2132 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2133 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2134 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2135 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2136 else if (compare (u, l))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2137 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2138 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2139 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2140 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2141 break;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2142 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2143 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2144 mode = DESCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2145 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2146 }
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2147 if (mode == UNSORTED && i == cols ())
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2148 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2149 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2150
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2151 if (mode != UNSORTED)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2152 {
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2153 lsort.set_compare (safe_comparator (mode, *this, false));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2154
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2155 if (! lsort.is_sorted_rows (data (), r, c))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2156 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2157 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2158
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2159 return mode;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2160
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2161 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2162
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2163 // Do a binary lookup in a sorted array.
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2164 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2165 octave_idx_type
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2166 Array<T>::lookup (const T& value, sortmode mode) const
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2167 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2168 octave_idx_type n = numel ();
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2169 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2170
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2171 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2172 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2173 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2174 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2175 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2176 else
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2177 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2178 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2179
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2180 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2181
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2182 return lsort.lookup (data (), n, value);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2183 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2184
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2185 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2186 Array<octave_idx_type>
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2187 Array<T>::lookup (const Array<T>& values, sortmode mode) const
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2188 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2189 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2190 octave_idx_type nval = values.numel ();
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2191 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2192 Array<octave_idx_type> idx (values.dims ());
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2193
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2194 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2195 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2196 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2197 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2198 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2199 else
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2200 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2201 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2202
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2203 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2204
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2205 // This determines the split ratio between the O(M*log2(N)) and O(M+N)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2206 // algorithms.
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2207 static const double ratio = 1.0;
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2208 sortmode vmode = UNSORTED;
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2209
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2210 // Attempt the O(M+N) algorithm if M is large enough.
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2211 if (nval > ratio * n / xlog2 (n + 1.0))
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2212 {
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2213 vmode = values.is_sorted ();
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2214 // The table must not contain a NaN.
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2215 if ((vmode == ASCENDING && sort_isnan<T> (values(nval-1)))
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2216 || (vmode == DESCENDING && sort_isnan<T> (values(0))))
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2217 vmode = UNSORTED;
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2218 }
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2219
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2220 if (vmode != UNSORTED)
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2221 lsort.lookup_sorted (data (), n, values.data (), nval,
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2222 idx.fortran_vec (), vmode != mode);
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2223 else
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2224 lsort.lookup (data (), n, values.data (), nval, idx.fortran_vec ());
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2225
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2226 return idx;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2227 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2228
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2229 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2230 octave_idx_type
9878
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2231 Array<T>::nnz (void) const
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2232 {
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2233 const T *src = data ();
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2234 octave_idx_type nel = nelem ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2235 octave_idx_type retval = 0;
9878
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2236 const T zero = T ();
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2237 for (octave_idx_type i = 0; i < nel; i++)
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2238 if (src[i] != zero)
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2239 retval++;
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2240
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2241 return retval;
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2242 }
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2243
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2244 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2245 Array<octave_idx_type>
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2246 Array<T>::find (octave_idx_type n, bool backward) const
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2247 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2248 Array<octave_idx_type> retval;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2249 const T *src = data ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2250 octave_idx_type nel = nelem ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2251 const T zero = T ();
9310
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2252 if (n < 0 || n >= nel)
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2253 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2254 // We want all elements, which means we'll almost surely need
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2255 // to resize. So count first, then allocate array of exact size.
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2256 octave_idx_type cnt = 0;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2257 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2258 cnt += src[i] != zero;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2259
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2260 retval.clear (cnt, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2261 octave_idx_type *dest = retval.fortran_vec ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2262 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2263 if (src[i] != zero) *dest++ = i;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2264 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2265 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2266 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2267 // We want a fixed max number of elements, usually small. So be
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2268 // optimistic, alloc the array in advance, and then resize if
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2269 // needed.
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2270 retval.clear (n, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2271 if (backward)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2272 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2273 // Do the search as a series of successive single-element searches.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2274 octave_idx_type k = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2275 octave_idx_type l = nel - 1;
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2276 for (; k < n; k++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2277 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2278 for (; l >= 0 && src[l] == zero; l--) ;
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2279 if (l >= 0)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2280 retval(k) = l--;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2281 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2282 break;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2283 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2284 if (k < n)
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
2285 retval.resize2 (k, 1);
9310
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2286 octave_idx_type *rdata = retval.fortran_vec ();
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2287 std::reverse (rdata, rdata + k);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2288 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2289 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2290 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2291 // Do the search as a series of successive single-element searches.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2292 octave_idx_type k = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2293 octave_idx_type l = 0;
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2294 for (; k < n; k++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2295 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2296 for (; l != nel && src[l] == zero; l++) ;
9029
2df28ad88b0e small fix in Array::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9025
diff changeset
2297 if (l != nel)
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2298 retval(k) = l++;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2299 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2300 break;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2301 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2302 if (k < n)
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
2303 retval.resize2 (k, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2304 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2305 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2306
9046
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2307 // Fixup return dimensions, for Matlab compatibility.
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2308 // find (zeros (0,0)) -> zeros (0,0)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2309 // find (zeros (1,0)) -> zeros (1,0)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2310 // find (zeros (0,1)) -> zeros (0,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2311 // find (zeros (0,X)) -> zeros (0,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2312 // find (zeros (1,1)) -> zeros (0,0) !!!! WHY?
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2313 // find (zeros (0,1,0)) -> zeros (0,0)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2314 // find (zeros (0,1,0,1)) -> zeros (0,0) etc
9046
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2315
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2316 if ((numel () == 1 && retval.is_empty ())
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2317 || (rows () == 0 && dims ().numel (1) == 0))
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2318 retval.dimensions = dim_vector ();
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2319 else if (rows () == 1 && ndims () == 2)
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2320 retval.dimensions = dim_vector (1, retval.length ());
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2321
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2322 return retval;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2323 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2324
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2325 template <class T>
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2326 Array<T>
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2327 Array<T>::nth_element (const idx_vector& n, int dim) const
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2328 {
10703
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
2329 if (dim < 0)
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2330 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2331 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2332 ("nth_element: invalid dimension");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2333 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2334 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2335
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2336 dim_vector dv = dims ();
10703
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
2337 if (dim >= dv.length ())
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
2338 dv.resize (dim+1, 1);
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
2339
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2340 octave_idx_type ns = dv(dim);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2341
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2342 octave_idx_type nn = n.length (ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2343
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2344 dv(dim) = std::min (nn, ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2345 dv.chop_trailing_singletons ();
14440
3d4bea9accd7 Fix segfault on multidimensional median call (bug #35679).
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14158
diff changeset
2346 dim = std::min (dv.length (), dim);
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2347
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2348 Array<T> m (dv);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2349
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2350 if (m.numel () == 0)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2351 return m;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2352
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2353 sortmode mode = UNSORTED;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2354 octave_idx_type lo = 0;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2355
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2356 switch (n.idx_class ())
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2357 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2358 case idx_vector::class_scalar:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2359 mode = ASCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2360 lo = n(0);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2361 break;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2362 case idx_vector::class_range:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2363 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2364 octave_idx_type inc = n.increment ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2365 if (inc == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2366 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2367 mode = ASCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2368 lo = n(0);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2369 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2370 else if (inc == -1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2371 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2372 mode = DESCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2373 lo = ns - 1 - n(0);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2374 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2375 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2376 default:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2377 break;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2378 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2379
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2380 if (mode == UNSORTED)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2381 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2382 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2383 ("nth_element: n must be a scalar or a contiguous range");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2384 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2385 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2386
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2387 octave_idx_type up = lo + nn;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2388
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2389 if (lo < 0 || up > ns)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2390 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2391 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2392 ("nth_element: invalid element index");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2393 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2394 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2395
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2396 octave_idx_type iter = numel () / ns;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2397 octave_idx_type stride = 1;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2398
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2399 for (int i = 0; i < dim; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2400 stride *= dv(i);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2401
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2402 T *v = m.fortran_vec ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2403 const T *ov = data ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2404
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2405 OCTAVE_LOCAL_BUFFER (T, buf, ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2406
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2407 octave_sort<T> lsort;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2408 lsort.set_compare (mode);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2409
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2410 for (octave_idx_type j = 0; j < iter; j++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2411 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2412 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2413 octave_idx_type ku = ns;
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2414
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2415 if (stride == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2416 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2417 // copy without NaNs.
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2418 // FIXME: impact on integer types noticeable?
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2419 for (octave_idx_type i = 0; i < ns; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2420 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2421 T tmp = ov[i];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2422 if (sort_isnan<T> (tmp))
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2423 buf[--ku] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2424 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2425 buf[kl++] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2426 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2427
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2428 ov += ns;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2429 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2430 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2431 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2432 octave_idx_type offset = j % stride;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2433 // copy without NaNs.
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2434 // FIXME: impact on integer types noticeable?
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2435 for (octave_idx_type i = 0; i < ns; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2436 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2437 T tmp = ov[offset + i*stride];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2438 if (sort_isnan<T> (tmp))
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2439 buf[--ku] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2440 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2441 buf[kl++] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2442 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2443
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2444 if (offset == stride-1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2445 ov += ns*stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2446 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2447
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2448 if (ku == ns)
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2449 lsort.nth_element (buf, ns, lo, up);
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2450 else if (mode == ASCENDING)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2451 lsort.nth_element (buf, ku, lo, std::min (ku, up));
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2452 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2453 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2454 octave_idx_type nnan = ns - ku;
10258
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2455 octave_idx_type zero = 0;
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2456 lsort.nth_element (buf, ku, std::max (lo - nnan, zero),
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2457 std::max (up - nnan, zero));
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2458 std::rotate (buf, buf + ku, buf + ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2459 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2460
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2461 if (stride == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2462 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2463 for (octave_idx_type i = 0; i < nn; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2464 v[i] = buf[lo + i];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2465
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2466 v += nn;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2467 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2468 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2469 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2470 octave_idx_type offset = j % stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2471 for (octave_idx_type i = 0; i < nn; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2472 v[offset + stride * i] = buf[lo + i];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2473 if (offset == stride-1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2474 v += nn*stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2475 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2476 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2477
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2478 return m;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2479 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2480
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2481 #define NO_INSTANTIATE_ARRAY_SORT(T) \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2482 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2483 template <> Array<T> \
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2484 Array<T>::sort (int, sortmode) const { return *this; } \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2485 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2486 template <> Array<T> \
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2487 Array<T>::sort (Array<octave_idx_type> &sidx, int, sortmode) const \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2488 { sidx = Array<octave_idx_type> (); return *this; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2489 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2490 template <> sortmode \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2491 Array<T>::is_sorted (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2492 { return UNSORTED; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2493 \
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2494 Array<T>::compare_fcn_type \
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2495 safe_comparator (sortmode, const Array<T>&, bool) \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2496 { return 0; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2497 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2498 template <> Array<octave_idx_type> \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2499 Array<T>::sort_rows_idx (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2500 { return Array<octave_idx_type> (); } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2501 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2502 template <> sortmode \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2503 Array<T>::is_sorted_rows (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2504 { return UNSORTED; } \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2505 \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2506 template <> octave_idx_type \
9222
7bd406e12e4d instantiate Array<void *> in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9201
diff changeset
2507 Array<T>::lookup (T const &, sortmode) const \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2508 { return 0; } \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2509 template <> Array<octave_idx_type> \
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2510 Array<T>::lookup (const Array<T>&, sortmode) const \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2511 { return Array<octave_idx_type> (); } \
9878
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2512 \
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2513 template <> octave_idx_type \
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2514 Array<T>::nnz (void) const\
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2515 { return 0; } \
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2516 template <> Array<octave_idx_type> \
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2517 Array<T>::find (octave_idx_type, bool) const\
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2518 { return Array<octave_idx_type> (); } \
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2519 \
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2520 template <> Array<T> \
19861
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19697
diff changeset
2521 Array<T>::nth_element (const idx_vector&, int) const { return Array<T> (); }
19593
446c46af4b42 strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 17769
diff changeset
2522
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2523
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2524 template <class T>
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2525 Array<T>
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2526 Array<T>::diag (octave_idx_type k) const
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2527 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2528 dim_vector dv = dims ();
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2529 octave_idx_type nd = dv.length ();
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2530 Array<T> d;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2531
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2532 if (nd > 2)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2533 (*current_liboctave_error_handler) ("Matrix must be 2-dimensional");
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2534 else
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2535 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2536 octave_idx_type nnr = dv (0);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2537 octave_idx_type nnc = dv (1);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2538
12550
ea3a4bf39048 Treat empty vector (1x0 or 0x1) as valid input to diag().
Rik <octave@nomad.inbox5.com>
parents: 12153
diff changeset
2539 if (nnr == 0 && nnc == 0)
ea3a4bf39048 Treat empty vector (1x0 or 0x1) as valid input to diag().
Rik <octave@nomad.inbox5.com>
parents: 12153
diff changeset
2540 ; // do nothing for empty matrix
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2541 else if (nnr != 1 && nnc != 1)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2542 {
12550
ea3a4bf39048 Treat empty vector (1x0 or 0x1) as valid input to diag().
Rik <octave@nomad.inbox5.com>
parents: 12153
diff changeset
2543 // Extract diag from matrix
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2544 if (k > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2545 nnc -= k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2546 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2547 nnr += k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2548
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2549 if (nnr > 0 && nnc > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2550 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2551 octave_idx_type ndiag = (nnr < nnc) ? nnr : nnc;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2552
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2553 d.resize (dim_vector (ndiag, 1));
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2554
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2555 if (k > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2556 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2557 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2558 d.xelem (i) = elem (i, i+k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2559 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2560 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2561 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2562 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2563 d.xelem (i) = elem (i-k, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2564 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2565 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2566 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2567 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2568 d.xelem (i) = elem (i, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2569 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2570 }
18146
a86d608c413c Return empty matrix rather than issuing error when requested diagonal is out of range.
Marco Caliari <marco.caliari@univr.it>
parents: 18099
diff changeset
2571 else // Matlab returns [] 0x1 for out-of-range diagonal
a86d608c413c Return empty matrix rather than issuing error when requested diagonal is out of range.
Marco Caliari <marco.caliari@univr.it>
parents: 18099
diff changeset
2572 d.resize (dim_vector (0, 1));
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2573 }
12550
ea3a4bf39048 Treat empty vector (1x0 or 0x1) as valid input to diag().
Rik <octave@nomad.inbox5.com>
parents: 12153
diff changeset
2574 else
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2575 {
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12884
diff changeset
2576 // Create diag matrix from vector
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2577 octave_idx_type roff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2578 octave_idx_type coff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2579 if (k > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2580 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2581 roff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2582 coff = k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2583 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2584 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2585 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2586 roff = -k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2587 coff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2588 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2589
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2590 if (nnr == 1)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2591 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2592 octave_idx_type n = nnc + std::abs (k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2593 d = Array<T> (dim_vector (n, n), resize_fill_value ());
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2594
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2595 for (octave_idx_type i = 0; i < nnc; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2596 d.xelem (i+roff, i+coff) = elem (0, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2597 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2598 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2599 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2600 octave_idx_type n = nnr + std::abs (k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2601 d = Array<T> (dim_vector (n, n), resize_fill_value ());
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2602
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2603 for (octave_idx_type i = 0; i < nnr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2604 d.xelem (i+roff, i+coff) = elem (i, 0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2605 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2606 }
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2607 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2608
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2609 return d;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2610 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2611
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2612 template <class T>
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2613 Array<T>
14557
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2614 Array<T>::diag (octave_idx_type m, octave_idx_type n) const
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2615 {
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2616 Array<T> retval;
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2617
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2618 if (ndims () == 2 && (rows () == 1 || cols () == 1))
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2619 {
14591
6b7e9724912a Silence warning about deprecated resize() call
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14557
diff changeset
2620 retval.resize (dim_vector (m, n), resize_fill_value ());
14557
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2621
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2622 for (octave_idx_type i = 0; i < numel (); i++)
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2623 retval.xelem (i, i) = xelem (i);
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2624 }
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2625 else
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2626 (*current_liboctave_error_handler)
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2627 ("cat: invalid dimension");
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2628
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2629 return retval;
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2630 }
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2631
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2632 template <class T>
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2633 Array<T>
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2634 Array<T>::cat (int dim, octave_idx_type n, const Array<T> *array_list)
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2635 {
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2636 // Default concatenation.
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2637 bool (dim_vector::*concat_rule) (const dim_vector&, int) = &dim_vector::concat;
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2638
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2639 if (dim == -1 || dim == -2)
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2640 {
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2641 concat_rule = &dim_vector::hvcat;
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2642 dim = -dim - 1;
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2643 }
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2644 else if (dim < 0)
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2645 (*current_liboctave_error_handler)
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2646 ("cat: invalid dimension");
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2647
10535
3f973f6c841c improve sparse concatenation operator
Jaroslav Hajek <highegg@gmail.com>
parents: 10533
diff changeset
2648 if (n == 1)
3f973f6c841c improve sparse concatenation operator
Jaroslav Hajek <highegg@gmail.com>
parents: 10533
diff changeset
2649 return array_list[0];
10681
0ba9bd294421 make cat() (hopefully) more matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10674
diff changeset
2650 else if (n == 0)
0ba9bd294421 make cat() (hopefully) more matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10674
diff changeset
2651 return Array<T> ();
0ba9bd294421 make cat() (hopefully) more matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10674
diff changeset
2652
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2653 // Special case:
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2654 //
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2655 // cat (dim, [], ..., [], A, ...)
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2656 //
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2657 // with dim > 2, A not 0x0, and at least three arguments to
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2658 // concatenate is equivalent to
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2659 //
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2660 // cat (dim, A, ...)
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2661 //
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2662 // Note that this check must be performed here because for full-on
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2663 // braindead Matlab compatibility, we need to have things like
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2664 //
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2665 // cat (3, [], [], A)
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2666 //
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2667 // succeed, but to have things like
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2668 //
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2669 // cat (3, cat (3, [], []), A)
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2670 // cat (3, zeros (0, 0, 2), A)
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2671 //
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2672 // fail. See also bug report #31615.
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2673
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2674 octave_idx_type istart = 0;
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2675
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2676 if (n > 2 && dim > 1)
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2677 {
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2678 for (octave_idx_type i = 0; i < n; i++)
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2679 {
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2680 dim_vector dv = array_list[i].dims ();
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2681
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2682 if (dv.zero_by_zero ())
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2683 istart++;
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2684 else
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2685 break;
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2686 }
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2687
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2688 // Don't skip any initial aguments if they are all empty.
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2689 if (istart >= n)
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2690 istart = 0;
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2691 }
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2692
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2693 dim_vector dv = array_list[istart++].dims ();
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2694
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2695 for (octave_idx_type i = istart; i < n; i++)
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2696 if (! (dv.*concat_rule) (array_list[i].dims (), dim))
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2697 (*current_liboctave_error_handler)
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2698 ("cat: dimension mismatch");
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2699
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2700 Array<T> retval (dv);
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2701
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2702 if (retval.is_empty ())
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2703 return retval;
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2704
10533
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2705 int nidx = std::max (dv.length (), dim + 1);
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2706 Array<idx_vector> idxa (dim_vector (nidx, 1), idx_vector::colon);
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2707 octave_idx_type l = 0;
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2708
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2709 for (octave_idx_type i = 0; i < n; i++)
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2710 {
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2711 // NOTE: This takes some thinking, but no matter what the above rules
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2712 // are, an empty array can always be skipped at this point, because
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2713 // the result dimensions are already determined, and there is no way
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2714 // an empty array may contribute a nonzero piece along the dimension
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2715 // at this point, unless an empty array can be promoted to a non-empty
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2716 // one (which makes no sense). I repeat, *no way*, think about it.
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2717 if (array_list[i].is_empty ())
10533
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2718 continue;
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2719
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2720 octave_quit ();
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2721
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2722 octave_idx_type u;
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2723 if (dim < array_list[i].ndims ())
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2724 u = l + array_list[i].dims ()(dim);
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2725 else
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2726 u = l + 1;
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2727
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2728 idxa(dim) = idx_vector (l, u);
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2729
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2730 retval.assign (idxa, array_list[i]);
10533
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2731
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2732 l = u;
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2733 }
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2734
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2735 return retval;
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2736 }
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2737
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2738 template <class T>
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2739 void
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2740 Array<T>::print_info (std::ostream& os, const std::string& prefix) const
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2741 {
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2742 os << prefix << "rep address: " << rep << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2743 << prefix << "rep->len: " << rep->len << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2744 << prefix << "rep->data: " << static_cast<void *> (rep->data) << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2745 << prefix << "rep->count: " << rep->count << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2746 << prefix << "slice_data: " << static_cast<void *> (slice_data) << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2747 << prefix << "slice_len: " << slice_len << '\n';
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2748
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2749 // 2D info:
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2750 //
4657
a585a2dfca6c [project @ 2003-11-25 01:30:09 by jwe]
jwe
parents: 4656
diff changeset
2751 // << pefix << "rows: " << rows () << "\n"
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2752 // << prefix << "cols: " << cols () << "\n";
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2753 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2754
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2755 template <class T>
10674
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2756 bool Array<T>::optimize_dimensions (const dim_vector& dv)
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2757 {
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2758 bool retval = dimensions == dv;
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2759 if (retval)
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2760 dimensions = dv;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2761
10674
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2762 return retval;
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2763 }
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2764
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2765 template <class T>
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2766 void Array<T>::instantiation_guard ()
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2767 {
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2768 // This guards against accidental implicit instantiations.
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2769 // Array<T> instances should always be explicit and use INSTANTIATE_ARRAY.
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14625
diff changeset
2770 T::__xXxXx__ ();
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2771 }
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2772
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2773 #define INSTANTIATE_ARRAY(T, API) \
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2774 template <> void Array<T>::instantiation_guard () { } \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2775 template class API Array<T>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2776
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2777 // FIXME: is this used?
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2778
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2779 template <class T>
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2780 std::ostream&
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2781 operator << (std::ostream& os, const Array<T>& a)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2782 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2783 dim_vector a_dims = a.dims ();
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2784
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2785 int n_dims = a_dims.length ();
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2786
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2787 os << n_dims << "-dimensional array";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2788
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2789 if (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2790 os << " (" << a_dims.str () << ")";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2791
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2792 os <<"\n\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2793
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2794 if (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2795 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2796 os << "data:";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2797
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2798 Array<octave_idx_type> ra_idx (dim_vector (n_dims, 1), 0);
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2799
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2800 // Number of times the first 2d-array is to be displayed.
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2801
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2802 octave_idx_type m = 1;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2803 for (int i = 2; i < n_dims; i++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2804 m *= a_dims(i);
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2805
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2806 if (m == 1)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2807 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2808 octave_idx_type rows = 0;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2809 octave_idx_type cols = 0;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2810
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2811 switch (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2812 {
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2813 case 2:
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2814 rows = a_dims(0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2815 cols = a_dims(1);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2816
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2817 for (octave_idx_type j = 0; j < rows; j++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2818 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2819 ra_idx(0) = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2820 for (octave_idx_type k = 0; k < cols; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2821 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2822 ra_idx(1) = k;
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2823 os << " " << a.elem (ra_idx);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2824 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2825 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2826 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2827 break;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2828
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2829 default:
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2830 rows = a_dims(0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2831
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2832 for (octave_idx_type k = 0; k < rows; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2833 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2834 ra_idx(0) = k;
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2835 os << " " << a.elem (ra_idx);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2836 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2837 break;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2838 }
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2839
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2840 os << "\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2841 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2842 else
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2843 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2844 octave_idx_type rows = a_dims(0);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2845 octave_idx_type cols = a_dims(1);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2846
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2847 for (int i = 0; i < m; i++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2848 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2849 os << "\n(:,:,";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2850
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2851 for (int j = 2; j < n_dims - 1; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2852 os << ra_idx(j) + 1 << ",";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2853
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2854 os << ra_idx(n_dims - 1) + 1 << ") = \n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2855
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2856 for (octave_idx_type j = 0; j < rows; j++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2857 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2858 ra_idx(0) = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2859
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2860 for (octave_idx_type k = 0; k < cols; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2861 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2862 ra_idx(1) = k;
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2863 os << " " << a.elem (ra_idx);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2864 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2865
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2866 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2867 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2868
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2869 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2870
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2871 if (i != m - 1)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2872 increment_index (ra_idx, a_dims, 2);
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2873 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2874 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2875 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2876
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2877 return os;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2878 }