annotate liboctave/array/idx-vector.h @ 29646:3e8bc8bee8e9

liboctave/array: Add visibility flags to functions declared in headers (bug #60567). * liboctave/array/boolMatrix.h, liboctave/array/boolNDArray.h, liboctave/array/boolSparse.h, liboctave/array/CColVector.h, liboctave/array/CDiagMatrix.h, liboctave/array/chMatrix.h, liboctave/array/chNDArray.h, liboctave/array/CMatrix.h, liboctave/array/CNDArray.h, liboctave/array/CRowVector.h, liboctave/array/CSparse.h, liboctave/array/dColVector.h, liboctave/array/dDiagMatrix.h, liboctave/array/DiagArray2.h, liboctave/array/dim-vector.h, liboctave/array/dMatrix.h, liboctave/array/dNDArray.h, liboctave/array/dRowVector.h, liboctave/array/fCColVector.h, liboctave/array/fCDiagMatrix.h, liboctave/array/fCMatrix.h, liboctave/array/fCNDArray.h, liboctave/array/fColVector.h, liboctave/array/fCRowVector.h, liboctave/array/fDiagMatrix.h, liboctave/array/fMatrix.h, liboctave/array/fNDArray.h, liboctave/array/fRowVector.h, liboctave/array/idx-vector.h, liboctave/array/intNDArray.h, liboctave/array/MArray.h, liboctave/array/MDiagArray2.h, liboctave/array/PermMatrix.h: Add visibility flags to functions that are declared (but not defined) in headers.
author Markus Mützel <markus.muetzel@gmx.de>
date Mon, 10 May 2021 23:27:38 +0200
parents 29a1f8fd8ee6
children b36e83cdbf05
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2021 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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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
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your 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
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License 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 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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25
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26 #if ! defined (octave_idx_vector_h)
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27 #define octave_idx_vector_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <cassert>
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32 #include <cstring>
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33
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34 #include <algorithm>
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35 #include <iosfwd>
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36 #include <memory>
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37
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38 #include "dim-vector.h"
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39 #include "oct-inttypes-fwd.h"
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40 #include "oct-refcount.h"
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41
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42 template <typename T> class Array;
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43 template <typename T> class Sparse;
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44
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45 namespace octave
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46 {
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47 template <typename T> class range;
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48
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49 // Design rationale:
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50 //
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51 // idx_vector is a reference-counting, polymorphic pointer, that can
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52 // contain 4 types of index objects: a magic colon, a range, a scalar,
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53 // or an index vector.
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54 //
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55 // Polymorphic methods for single element access are provided, as well
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56 // as templates implementing "early dispatch", i.e., hoisting the checks
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57 // for index type out of loops.
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58
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59 class
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60 OCTAVE_API
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61 idx_vector
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62 {
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63 public:
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64
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65 enum idx_class_type
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66 {
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67 class_invalid = -1,
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68 class_colon = 0,
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69 class_range,
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70 class_scalar,
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71 class_vector,
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72 class_mask
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73 };
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74
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75 template <typename T, typename D> friend class std::unique_ptr;
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76
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77 private:
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78
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79 class OCTAVE_API idx_base_rep
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80 {
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81 public:
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82
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83 idx_base_rep (void) : m_count (1) { }
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84
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85 // No copying!
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86
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87 idx_base_rep (const idx_base_rep&) = delete;
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88
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89 idx_base_rep& operator = (const idx_base_rep&) = delete;
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90
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91 virtual ~idx_base_rep (void) = default;
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92
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93 // Non-range-checking element query.
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94 virtual octave_idx_type xelem (octave_idx_type i) const = 0;
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95
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96 // Range-checking element query.
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97 virtual octave_idx_type checkelem (octave_idx_type i) const = 0;
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98
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99 // Length of the index vector.
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100 virtual octave_idx_type length (octave_idx_type n) const = 0;
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101
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102 // The maximum index + 1. The actual dimension is passed in.
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103 virtual octave_idx_type extent (octave_idx_type n) const = 0;
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104
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105 // Index class.
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106 virtual idx_class_type idx_class (void) const { return class_invalid; }
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107
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108 // Sorts, maybe uniqifies, and returns a clone object pointer.
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109 virtual idx_base_rep * sort_uniq_clone (bool uniq = false) = 0;
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110 // Sorts, and returns a sorting permutation (aka Array::sort).
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111 virtual idx_base_rep * sort_idx (Array<octave_idx_type>&) = 0;
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112
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113 // Checks whether the index is colon or a range equivalent to colon.
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114 virtual bool is_colon_equiv (octave_idx_type) const { return false; }
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115
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116 // The original dimensions of object (used when subscribing by matrices).
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117 virtual dim_vector orig_dimensions (void) const { return dim_vector (); }
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118
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119 // i/o
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120 virtual std::ostream& print (std::ostream& os) const = 0;
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121
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122 virtual Array<octave_idx_type> as_array (void);
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123
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124 refcount<octave_idx_type> m_count;
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125 };
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126
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127 // The magic colon index.
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128 class OCTAVE_API idx_colon_rep : public idx_base_rep
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129 {
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130 public:
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131
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132 idx_colon_rep (void) = default;
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133
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134 OCTAVE_API idx_colon_rep (char c);
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135
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136 // No copying!
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137
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138 idx_colon_rep (const idx_colon_rep& idx) = delete;
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139
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140 idx_colon_rep& operator = (const idx_colon_rep& idx) = delete;
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141
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142 octave_idx_type xelem (octave_idx_type i) const { return i; }
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143
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144 OCTAVE_API octave_idx_type checkelem (octave_idx_type i) const;
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145
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146 octave_idx_type length (octave_idx_type n) const { return n; }
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147
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148 octave_idx_type extent (octave_idx_type n) const { return n; }
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149
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150 idx_class_type idx_class (void) const { return class_colon; }
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151
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152 idx_base_rep * sort_uniq_clone (bool = false)
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153 { m_count++; return this; }
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154
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155 OCTAVE_NORETURN idx_base_rep * sort_idx (Array<octave_idx_type>&);
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156
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157 bool is_colon_equiv (octave_idx_type) const { return true; }
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158
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159 OCTAVE_API std::ostream& print (std::ostream& os) const;
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160 };
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161
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162 // To distinguish the "direct" constructors that blindly trust the data.
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163 enum direct { DIRECT };
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164
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165 // The integer range index.
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166 class OCTAVE_API idx_range_rep : public idx_base_rep
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167 {
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168 public:
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169
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170 idx_range_rep (void) = delete;
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171
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172 idx_range_rep (octave_idx_type start, octave_idx_type len,
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173 octave_idx_type step, direct)
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174 : idx_base_rep (), m_start (start), m_len (len), m_step (step) { }
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175
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176 // Zero-based constructor.
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177 idx_range_rep (octave_idx_type start, octave_idx_type limit,
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178 octave_idx_type step);
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179
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180 OCTAVE_API idx_range_rep (const range<double>&);
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181
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182 // No copying!
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183
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184 idx_range_rep (const idx_range_rep& idx) = delete;
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185
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186 idx_range_rep& operator = (const idx_range_rep& idx) = delete;
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187
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188 octave_idx_type xelem (octave_idx_type i) const
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189 { return m_start + i * m_step; }
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190
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191 octave_idx_type checkelem (octave_idx_type i) const;
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192
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193 octave_idx_type length (octave_idx_type) const { return m_len; }
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194
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195 octave_idx_type extent (octave_idx_type n) const
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196 {
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197 return m_len ? std::max (n, m_start + 1 + (m_step < 0 ? 0 : m_step * (m_len - 1))) : n;
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198 }
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199
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200 idx_class_type idx_class (void) const { return class_range; }
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201
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202 OCTAVE_API idx_base_rep * sort_uniq_clone (bool uniq = false);
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203
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204 OCTAVE_API idx_base_rep * sort_idx (Array<octave_idx_type>&);
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205
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206 bool is_colon_equiv (octave_idx_type n) const
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207 { return m_start == 0 && m_step == 1 && m_len == n; }
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208
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209 dim_vector orig_dimensions (void) const
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210 { return dim_vector (1, m_len); }
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211
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212 octave_idx_type get_start (void) const { return m_start; }
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213
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214 octave_idx_type get_step (void) const { return m_step; }
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215
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216 OCTAVE_API std::ostream& print (std::ostream& os) const;
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217
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218 OCTAVE_API range<double> unconvert (void) const;
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219
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220 OCTAVE_API Array<octave_idx_type> as_array (void);
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221
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222 private:
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223
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224 octave_idx_type m_start, m_len, m_step;
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225 };
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226
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227 // The integer scalar index.
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228 class OCTAVE_API idx_scalar_rep : public idx_base_rep
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229 {
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230 public:
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231
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232 idx_scalar_rep (void) = delete;
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233
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234 idx_scalar_rep (octave_idx_type i, direct) : idx_base_rep (), m_data (i) { }
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235
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236 // No copying!
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237
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238 idx_scalar_rep (const idx_scalar_rep& idx) = delete;
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239
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240 idx_scalar_rep& operator = (const idx_scalar_rep& idx) = delete;
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241
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242 // Zero-based constructor.
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243 OCTAVE_API idx_scalar_rep (octave_idx_type i);
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244
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245 template <typename T>
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246 idx_scalar_rep (T x);
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247
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248 octave_idx_type xelem (octave_idx_type) const { return m_data; }
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249
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250 OCTAVE_API octave_idx_type checkelem (octave_idx_type i) const;
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251
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252 octave_idx_type length (octave_idx_type) const { return 1; }
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253
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254 octave_idx_type extent (octave_idx_type n) const
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255 { return std::max (n, m_data + 1); }
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256
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257 idx_class_type idx_class (void) const { return class_scalar; }
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258
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259 idx_base_rep * sort_uniq_clone (bool = false)
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260 { m_count++; return this; }
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261
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262 OCTAVE_API idx_base_rep * sort_idx (Array<octave_idx_type>&);
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263
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264 bool is_colon_equiv (octave_idx_type n) const
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265 { return n == 1 && m_data == 0; }
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266
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267 dim_vector orig_dimensions (void) const { return dim_vector (1, 1); }
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268
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269 octave_idx_type get_data (void) const { return m_data; }
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270
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271 OCTAVE_API std::ostream& print (std::ostream& os) const;
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272
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273 OCTAVE_API double unconvert (void) const;
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274
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275 OCTAVE_API Array<octave_idx_type> as_array (void);
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276
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277 private:
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278
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279 octave_idx_type m_data;
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280 };
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281
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282 // The integer vector index.
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283 class OCTAVE_API idx_vector_rep : public idx_base_rep
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284 {
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285 public:
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286
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287 idx_vector_rep (void)
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288 : m_data (nullptr), m_len (0), m_ext (0), m_aowner (nullptr), m_orig_dims () { }
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289
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290 // Direct constructor.
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291 idx_vector_rep (octave_idx_type *data, octave_idx_type len,
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292 octave_idx_type ext, const dim_vector& od, direct)
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293 : idx_base_rep (), m_data (data), m_len (len), m_ext (ext),
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294 m_aowner (nullptr), m_orig_dims (od)
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295 { }
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296
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297 // Zero-based constructor.
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298 OCTAVE_API idx_vector_rep (const Array<octave_idx_type>& inda);
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299
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300 OCTAVE_API idx_vector_rep (const Array<octave_idx_type>& inda,
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301 octave_idx_type ext, direct);
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302
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303 template <typename T>
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304 idx_vector_rep (const Array<T>&);
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305
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306 OCTAVE_API idx_vector_rep (bool);
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307
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308 OCTAVE_API idx_vector_rep (const Array<bool>&, octave_idx_type = -1);
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309
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310 OCTAVE_API idx_vector_rep (const Sparse<bool>&);
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311
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312 // No copying!
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313
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314 idx_vector_rep (const idx_vector_rep& idx) = delete;
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315
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316 idx_vector_rep& operator = (const idx_vector_rep& idx) = delete;
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317
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318 ~idx_vector_rep (void);
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319
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320 octave_idx_type xelem (octave_idx_type i) const { return m_data[i]; }
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321
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322 OCTAVE_API octave_idx_type checkelem (octave_idx_type i) const;
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323
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324 octave_idx_type length (octave_idx_type) const { return m_len; }
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325
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326 octave_idx_type extent (octave_idx_type n) const
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327 { return std::max (n, m_ext); }
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328
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329 idx_class_type idx_class (void) const { return class_vector; }
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330
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331 idx_base_rep * sort_uniq_clone (bool uniq = false);
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332
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333 OCTAVE_API idx_base_rep * sort_idx (Array<octave_idx_type>&);
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334
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335 dim_vector orig_dimensions (void) const { return m_orig_dims; }
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336
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337 const octave_idx_type * get_data (void) const { return m_data; }
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338
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339 OCTAVE_API std::ostream& print (std::ostream& os) const;
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340
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341 OCTAVE_API Array<double> unconvert (void) const;
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342
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343 OCTAVE_API Array<octave_idx_type> as_array (void);
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344
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345 private:
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346
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347 const octave_idx_type *m_data;
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348 octave_idx_type m_len;
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349 octave_idx_type m_ext;
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350
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351 // This is a trick to allow user-given zero-based arrays to be used
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352 // as indices without copying. If the following pointer is nonzero,
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353 // we do not own the data, but rather have an Array<octave_idx_type>
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354 // object that provides us the data. Note that we need a pointer
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355 // because we deferred the Array<T> declaration and we do not want
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356 // it yet to be defined.
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357
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358 Array<octave_idx_type> *m_aowner;
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359
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360 dim_vector m_orig_dims;
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361 };
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362
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363 // The logical mask index.
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364 class OCTAVE_API idx_mask_rep : public idx_base_rep
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365 {
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366 public:
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367
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368 idx_mask_rep (void) = delete;
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369
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370 // Direct constructor.
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371 idx_mask_rep (bool *data, octave_idx_type len,
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372 octave_idx_type ext, const dim_vector& od, direct)
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373 : idx_base_rep (), m_data (data), m_len (len), m_ext (ext),
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374 m_lsti (-1), m_lste (-1), m_aowner (nullptr), m_orig_dims (od)
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375 { }
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376
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377 OCTAVE_API idx_mask_rep (bool);
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378
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379 OCTAVE_API idx_mask_rep (const Array<bool>&, octave_idx_type = -1);
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380
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381 // No copying!
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382
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383 idx_mask_rep (const idx_mask_rep& idx) = delete;
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384
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385 idx_mask_rep& operator = (const idx_mask_rep& idx) = delete;
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386
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387 OCTAVE_API ~idx_mask_rep (void);
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388
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389 octave_idx_type xelem (octave_idx_type i) const;
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390
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391 octave_idx_type checkelem (octave_idx_type i) const;
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392
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393 octave_idx_type length (octave_idx_type) const { return m_len; }
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394
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395 octave_idx_type extent (octave_idx_type n) const
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396 { return std::max (n, m_ext); }
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397
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398 idx_class_type idx_class (void) const { return class_mask; }
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399
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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400 idx_base_rep * sort_uniq_clone (bool = false)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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401 { m_count++; return this; }
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402
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403 OCTAVE_API idx_base_rep * sort_idx (Array<octave_idx_type>&);
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John W. Eaton <jwe@octave.org>
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404
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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405 dim_vector orig_dimensions (void) const { return m_orig_dims; }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
406
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
407 bool is_colon_equiv (octave_idx_type n) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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408 { return m_len == n && m_ext == n; }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
409
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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parents: 29568
diff changeset
410 const bool * get_data (void) const { return m_data; }
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John W. Eaton <jwe@octave.org>
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diff changeset
411
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412 OCTAVE_API std::ostream& print (std::ostream& os) const;
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John W. Eaton <jwe@octave.org>
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413
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Markus Mützel <markus.muetzel@gmx.de>
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414 OCTAVE_API Array<bool> unconvert (void) const;
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415
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416 OCTAVE_API Array<octave_idx_type> as_array (void);
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417
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418 private:
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John W. Eaton <jwe@octave.org>
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419
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420 const bool *m_data;
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421 octave_idx_type m_len;
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422 octave_idx_type m_ext;
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423
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424 // FIXME: I'm not sure if this is a good design. Maybe it would be
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425 // better to employ some sort of generalized iteration scheme.
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426 mutable octave_idx_type m_lsti;
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427 mutable octave_idx_type m_lste;
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428
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429 // This is a trick to allow user-given mask arrays to be used as
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430 // indices without copying. If the following pointer is nonzero, we
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431 // do not own the data, but rather have an Array<bool> object that
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432 // provides us the data. Note that we need a pointer because we
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433 // deferred the Array<T> declaration and we do not want it yet to be
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434 // defined.
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435
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436 Array<bool> *m_aowner;
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437
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438 dim_vector m_orig_dims;
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439 };
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440
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441 idx_vector (idx_base_rep *r) : m_rep (r) { }
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442
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443 // The shared empty vector representation (for fast default
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444 // constructor).
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445 static OCTAVE_API idx_vector_rep *nil_rep (void);
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446
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447 public:
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448
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449 // Fast empty constructor.
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450 idx_vector (void) : m_rep (nil_rep ()) { m_rep->m_count++; }
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451
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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452 // Zero-based constructors (for use from C++).
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diff changeset
453 idx_vector (octave_idx_type i) : m_rep (new idx_scalar_rep (i)) { }
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454
23015
198fbbf6934a new idx_vector (F77_INT) constructor
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455 #if OCTAVE_SIZEOF_F77_INT_TYPE != OCTAVE_SIZEOF_IDX_TYPE
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456 idx_vector (octave_f77_int_type i)
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457 : m_rep (new idx_scalar_rep (static_cast<octave_idx_type> (i))) { }
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diff changeset
458 #endif
198fbbf6934a new idx_vector (F77_INT) constructor
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459
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diff changeset
460 idx_vector (octave_idx_type start, octave_idx_type limit,
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diff changeset
461 octave_idx_type step = 1)
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462 : m_rep (new idx_range_rep (start, limit, step)) { }
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463
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John W. Eaton <jwe@octave.org>
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diff changeset
464 static idx_vector
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
465 make_range (octave_idx_type start, octave_idx_type step,
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diff changeset
466 octave_idx_type len)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
467 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
468 return idx_vector (new idx_range_rep (start, len, step, DIRECT));
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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parents: 29568
diff changeset
469 }
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents: 8972
diff changeset
470
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
471 idx_vector (const Array<octave_idx_type>& inda)
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472 : m_rep (new idx_vector_rep (inda)) { }
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parents: 1553
diff changeset
473
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
474 // Directly pass extent, no checking.
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
475 idx_vector (const Array<octave_idx_type>& inda, octave_idx_type ext)
29568
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John W. Eaton <jwe@octave.org>
parents: 29567
diff changeset
476 : m_rep (new idx_vector_rep (inda, ext, DIRECT)) { }
10285
22a7913bbeb5 optimize return values of find and sort
Jaroslav Hajek <highegg@gmail.com>
parents: 10273
diff changeset
477
29569
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John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
478 // Colon is best constructed by simply copying (or referencing) this member.
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
479 static const idx_vector colon;
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jwe
parents: 4653
diff changeset
480
29569
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John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
481 // or passing ':' here
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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parents: 29568
diff changeset
482 idx_vector (char c) : m_rep (new idx_colon_rep (c)) { }
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Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
483
29569
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John W. Eaton <jwe@octave.org>
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diff changeset
484 // Conversion constructors (used by interpreter).
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parents: 1553
diff changeset
485
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
486 template <typename T>
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
487 idx_vector (octave_int<T> x) : m_rep (new idx_scalar_rep (x)) { }
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7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
488
29569
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John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
489 idx_vector (double x) : m_rep (new idx_scalar_rep (x)) { }
2386
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jwe
parents: 2356
diff changeset
490
29569
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John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
491 idx_vector (float x) : m_rep (new idx_scalar_rep (x)) { }
3928
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jwe
parents: 3504
diff changeset
492
29569
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John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
493 // A scalar bool does not necessarily map to scalar index.
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
494 idx_vector (bool x) : m_rep (new idx_mask_rep (x)) { }
1560
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jwe
parents: 1553
diff changeset
495
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
496 template <typename T>
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
497 idx_vector (const Array<octave_int<T>>& nda)
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diff changeset
498 : m_rep (new idx_vector_rep (nda)) { }
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Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
499
29569
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John W. Eaton <jwe@octave.org>
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diff changeset
500 idx_vector (const Array<double>& nda) : m_rep (new idx_vector_rep (nda)) { }
2828
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parents: 2802
diff changeset
501
29569
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John W. Eaton <jwe@octave.org>
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diff changeset
502 idx_vector (const Array<float>& nda) : m_rep (new idx_vector_rep (nda)) { }
4938
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parents: 4653
diff changeset
503
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Markus Mützel <markus.muetzel@gmx.de>
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diff changeset
504 OCTAVE_API idx_vector (const Array<bool>& nda);
8290
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Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
505
29569
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John W. Eaton <jwe@octave.org>
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diff changeset
506 idx_vector (const range<double>& r) : m_rep (new idx_range_rep (r)) { }
2828
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jwe
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diff changeset
507
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diff changeset
508 idx_vector (const Sparse<bool>& nda) : m_rep (new idx_vector_rep (nda)) { }
8384
a99b9113c58c optimize sparse bool indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8367
diff changeset
509
29569
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John W. Eaton <jwe@octave.org>
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diff changeset
510 idx_vector (const idx_vector& a) : m_rep (a.m_rep) { m_rep->m_count++; }
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diff changeset
511
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diff changeset
512 ~idx_vector (void)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
513 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
514 if (--m_rep->m_count == 0 && m_rep != nil_rep ())
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
515 delete m_rep;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
516 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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diff changeset
517
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diff changeset
518 idx_vector& operator = (const idx_vector& a)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
519 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
520 if (this != &a)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
521 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
522 if (--m_rep->m_count == 0 && m_rep != nil_rep ())
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John W. Eaton <jwe@octave.org>
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diff changeset
523 delete m_rep;
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diff changeset
524
29569
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John W. Eaton <jwe@octave.org>
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diff changeset
525 m_rep = a.m_rep;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
526 m_rep->m_count++;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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parents: 29568
diff changeset
527 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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parents: 29568
diff changeset
528 return *this;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
529 }
191
b6b4d8c513fe [project @ 1993-10-29 23:41:39 by jwe]
jwe
parents: 164
diff changeset
530
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
531 idx_class_type idx_class (void) const { return m_rep->idx_class (); }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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parents:
diff changeset
532
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
533 octave_idx_type length (octave_idx_type n = 0) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
534 { return m_rep->length (n); }
1551
8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe]
jwe
parents: 1315
diff changeset
535
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
536 octave_idx_type extent (octave_idx_type n) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
537 { return m_rep->extent (n); }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
538
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
539 octave_idx_type xelem (octave_idx_type n) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
540 { return m_rep->xelem (n); }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
541
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
542 octave_idx_type checkelem (octave_idx_type n) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
543 { return m_rep->xelem (n); }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
544
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
545 octave_idx_type operator () (octave_idx_type n) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
546 { return m_rep->xelem (n); }
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents: 8972
diff changeset
547
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
548 // FIXME: idx_vector objects are either created successfully or an
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
549 // error is thrown, so this method no longer makes sense.
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
550 operator bool (void) const { return true; }
3079
eb827eb9b8ff [project @ 1997-08-03 20:44:07 by jwe]
jwe
parents: 2847
diff changeset
551
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
552 bool is_colon (void) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
553 { return m_rep->idx_class () == class_colon; }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
554
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
555 bool is_scalar (void) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
556 { return m_rep->idx_class () == class_scalar; }
208
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe]
jwe
parents: 191
diff changeset
557
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
558 bool is_range (void) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
559 { return m_rep->idx_class () == class_range; }
10273
3a8c13b71612 implement special-case optimization for sort of index vectors
Jaroslav Hajek <highegg@gmail.com>
parents: 10158
diff changeset
560
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
561 bool is_colon_equiv (octave_idx_type n) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
562 { return m_rep->is_colon_equiv (n); }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
563
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
564 idx_vector sorted (bool uniq = false) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
565 { return idx_vector (m_rep->sort_uniq_clone (uniq)); }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
566
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
567 idx_vector sorted (Array<octave_idx_type>& sidx) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
568 { return idx_vector (m_rep->sort_idx (sidx)); }
2663
00b2eff19bf5 [project @ 1997-02-08 21:58:49 by jwe]
jwe
parents: 2386
diff changeset
569
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
570 dim_vector orig_dimensions (void) const { return m_rep->orig_dimensions (); }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
571
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
572 octave_idx_type orig_rows (void) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
573 { return orig_dimensions () (0); }
1560
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe]
jwe
parents: 1553
diff changeset
574
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
575 octave_idx_type orig_columns (void) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
576 { return orig_dimensions () (1); }
1560
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe]
jwe
parents: 1553
diff changeset
577
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
578 int orig_empty (void) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
579 { return (! is_colon () && orig_dimensions ().any_zero ()); }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
580
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
581 // i/o
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
582
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
583 std::ostream& print (std::ostream& os) const { return m_rep->print (os); }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
584
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
585 friend std::ostream& operator << (std::ostream& os, const idx_vector& a)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
586 { return a.print (os); }
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
587
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
588 // Slice with specializations. No checking of bounds!
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
589 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
590 // This is equivalent to the following loop (but much faster):
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
591 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
592 // for (octave_idx_type i = 0; i < idx->length (n); i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
593 // dest[i] = src[idx(i)];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
594 // return i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
595 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
596 template <typename T>
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
597 octave_idx_type
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
598 index (const T *src, octave_idx_type n, T *dest) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
599 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
600 octave_idx_type len = m_rep->length (n);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
601
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
602 switch (m_rep->idx_class ())
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
603 {
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
604 case class_colon:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
605 std::copy_n (src, len, dest);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
606 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
607
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
608 case class_range:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
609 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
610 idx_range_rep *r = dynamic_cast<idx_range_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
611 octave_idx_type start = r->get_start ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
612 octave_idx_type step = r->get_step ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
613 const T *ssrc = src + start;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
614 if (step == 1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
615 std::copy_n (ssrc, len, dest);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
616 else if (step == -1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
617 std::reverse_copy (ssrc - len + 1, ssrc + 1, dest);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
618 else if (step == 0)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
619 std::fill_n (dest, len, *ssrc);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
620 else
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
621 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
622 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
623 dest[i] = ssrc[j];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
624 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
625 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
626 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
627
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
628 case class_scalar:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
629 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
630 idx_scalar_rep *r = dynamic_cast<idx_scalar_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
631 dest[0] = src[r->get_data ()];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
632 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
633 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
634
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
635 case class_vector:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
636 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
637 idx_vector_rep *r = dynamic_cast<idx_vector_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
638 const octave_idx_type *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
639 for (octave_idx_type i = 0; i < len; i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
640 dest[i] = src[data[i]];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
641 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
642 break;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
643
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
644 case class_mask:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
645 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
646 idx_mask_rep *r = dynamic_cast<idx_mask_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
647 const bool *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
648 octave_idx_type ext = r->extent (0);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
649 for (octave_idx_type i = 0; i < ext; i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
650 if (data[i]) *dest++ = src[i];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
651 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
652 break;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
653
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
654 default:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
655 assert (false);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
656 break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
657 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
658
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
659 return len;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
660 }
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
661
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
662 // Slice assignment with specializations. No checking of bounds!
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
663 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
664 // This is equivalent to the following loop (but much faster):
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
665 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
666 // for (octave_idx_type i = 0; i < idx->length (n); i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
667 // dest[idx(i)] = src[i];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
668 // return i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
669 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
670 template <typename T>
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
671 octave_idx_type
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
672 assign (const T *src, octave_idx_type n, T *dest) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
673 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
674 octave_idx_type len = m_rep->length (n);
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
675
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
676 switch (m_rep->idx_class ())
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
677 {
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
678 case class_colon:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
679 std::copy_n (src, len, dest);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
680 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
681
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
682 case class_range:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
683 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
684 idx_range_rep *r = dynamic_cast<idx_range_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
685 octave_idx_type start = r->get_start ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
686 octave_idx_type step = r->get_step ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
687 T *sdest = dest + start;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
688 if (step == 1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
689 std::copy_n (src, len, sdest);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
690 else if (step == -1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
691 std::reverse_copy (src, src + len, sdest - len + 1);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
692 else
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
693 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
694 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
695 sdest[j] = src[i];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
696 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
697 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
698 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
699
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
700 case class_scalar:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
701 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
702 idx_scalar_rep *r = dynamic_cast<idx_scalar_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
703 dest[r->get_data ()] = src[0];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
704 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
705 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
706
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
707 case class_vector:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
708 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
709 idx_vector_rep *r = dynamic_cast<idx_vector_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
710 const octave_idx_type *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
711 for (octave_idx_type i = 0; i < len; i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
712 dest[data[i]] = src[i];
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
713 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
714 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
715
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
716 case class_mask:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
717 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
718 idx_mask_rep *r = dynamic_cast<idx_mask_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
719 const bool *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
720 octave_idx_type ext = r->extent (0);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
721 for (octave_idx_type i = 0; i < ext; i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
722 if (data[i]) dest[i] = *src++;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
723 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
724 break;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
725
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
726 default:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
727 assert (false);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
728 break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
729 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
730
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
731 return len;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
732 }
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
733
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
734 // Slice fill with specializations. No checking of bounds!
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
735 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
736 // This is equivalent to the following loop (but much faster):
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
737 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
738 // for (octave_idx_type i = 0; i < idx->length (n); i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
739 // dest[idx(i)] = val;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
740 // return i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
741 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
742 template <typename T>
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
743 octave_idx_type
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
744 fill (const T& val, octave_idx_type n, T *dest) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
745 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
746 octave_idx_type len = m_rep->length (n);
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
747
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
748 switch (m_rep->idx_class ())
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
749 {
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
750 case class_colon:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
751 std::fill_n (dest, len, val);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
752 break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
753
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
754 case class_range:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
755 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
756 idx_range_rep *r = dynamic_cast<idx_range_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
757 octave_idx_type start = r->get_start ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
758 octave_idx_type step = r->get_step ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
759 T *sdest = dest + start;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
760 if (step == 1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
761 std::fill_n (sdest, len, val);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
762 else if (step == -1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
763 std::fill (sdest - len + 1, sdest + 1, val);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
764 else
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
765 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
766 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
767 sdest[j] = val;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
768 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
769 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
770 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
771
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
772 case class_scalar:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
773 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
774 idx_scalar_rep *r = dynamic_cast<idx_scalar_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
775 dest[r->get_data ()] = val;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
776 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
777 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
778
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
779 case class_vector:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
780 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
781 idx_vector_rep *r = dynamic_cast<idx_vector_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
782 const octave_idx_type *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
783 for (octave_idx_type i = 0; i < len; i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
784 dest[data[i]] = val;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
785 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
786 break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
787
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
788 case class_mask:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
789 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
790 idx_mask_rep *r = dynamic_cast<idx_mask_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
791 const bool *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
792 octave_idx_type ext = r->extent (0);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
793 for (octave_idx_type i = 0; i < ext; i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
794 if (data[i]) dest[i] = val;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
795 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
796 break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
797
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
798 default:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
799 assert (false);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
800 break;
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
801 }
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
802
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
803 return len;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
804 }
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
805
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
806 // Generic non-breakable indexed loop. The loop body should be
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
807 // encapsulated in a single functor body. This is equivalent to the
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
808 // following loop (but faster, at least for simple inlined bodies):
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
809 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
810 // for (octave_idx_type i = 0; i < idx->length (n); i++) body (idx(i));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
811
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
812 template <typename Functor>
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
813 void
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
814 loop (octave_idx_type n, Functor body) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
815 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
816 octave_idx_type len = m_rep->length (n);
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
817
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
818 switch (m_rep->idx_class ())
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
819 {
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
820 case class_colon:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
821 for (octave_idx_type i = 0; i < len; i++) body (i);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
822 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
823
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
824 case class_range:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
825 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
826 idx_range_rep *r = dynamic_cast<idx_range_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
827 octave_idx_type start = r->get_start ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
828 octave_idx_type step = r->get_step ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
829 octave_idx_type i, j;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
830 if (step == 1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
831 for (i = start, j = start + len; i < j; i++) body (i);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
832 else if (step == -1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
833 for (i = start, j = start - len; i > j; i--) body (i);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
834 else
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
835 for (i = 0, j = start; i < len; i++, j += step) body (j);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
836 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
837 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
838
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
839 case class_scalar:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
840 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
841 idx_scalar_rep *r = dynamic_cast<idx_scalar_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
842 body (r->get_data ());
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
843 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
844 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
845
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
846 case class_vector:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
847 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
848 idx_vector_rep *r = dynamic_cast<idx_vector_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
849 const octave_idx_type *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
850 for (octave_idx_type i = 0; i < len; i++) body (data[i]);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
851 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
852 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
853
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
854 case class_mask:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
855 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
856 idx_mask_rep *r = dynamic_cast<idx_mask_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
857 const bool *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
858 octave_idx_type ext = r->extent (0);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
859 for (octave_idx_type i = 0; i < ext; i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
860 if (data[i]) body (i);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
861 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
862 break;
8934
c2099a4d12ea partially optimize accumarray
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
863
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
864 default:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
865 assert (false);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
866 break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
867 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
868
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
869 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
870
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
871 // Generic breakable indexed loop. The loop body should be
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
872 // encapsulated in a single functor body. This is equivalent to the
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
873 // following loop (but faster, at least for simple inlined bodies):
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
874 //
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
875 // for (octave_idx_type i = 0; i < idx->length (n); i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
876 // if (body (idx(i))) break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
877 // return i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
878 //
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
879
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
880 template <typename Functor>
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
881 octave_idx_type
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
882 bloop (octave_idx_type n, Functor body) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
883 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
884 octave_idx_type len = m_rep->length (n), ret;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
885
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
886 switch (m_rep->idx_class ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
887 {
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
888 case class_colon:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
889 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
890 octave_idx_type i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
891 for (i = 0; i < len && body (i); i++) ;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
892 ret = i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
893 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
894 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
895
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
896 case class_range:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
897 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
898 idx_range_rep *r = dynamic_cast<idx_range_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
899 octave_idx_type start = r->get_start ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
900 octave_idx_type step = r->get_step ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
901 octave_idx_type i, j;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
902 if (step == 1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
903 for (i = start, j = start + len; i < j && body (i); i++) ;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
904 else if (step == -1)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
905 for (i = start, j = start - len; i > j && body (i); i--) ;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
906 else
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
907 for (i = 0, j = start; i < len && body (j); i++, j += step) ;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
908 ret = i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
909 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
910 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
911
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
912 case class_scalar:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
913 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
914 idx_scalar_rep *r = dynamic_cast<idx_scalar_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
915 ret = (body (r->get_data ()) ? 1 : 0);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
916 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
917 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
918
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
919 case class_vector:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
920 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
921 idx_vector_rep *r = dynamic_cast<idx_vector_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
922 const octave_idx_type *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
923 octave_idx_type i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
924 for (i = 0; i < len && body (data[i]); i++) ;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
925 ret = i;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
926 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
927 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
928
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
929 case class_mask:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
930 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
931 idx_mask_rep *r = dynamic_cast<idx_mask_rep *> (m_rep);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
932 const bool *data = r->get_data ();
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
933 octave_idx_type ext = r->extent (0);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
934 octave_idx_type j = 0;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
935 for (octave_idx_type i = 0; i < ext; i++)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
936 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
937 if (data[i])
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
938 {
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
939 if (body (i))
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
940 break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
941 else
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
942 j++;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
943 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
944 }
9985
43a29eeda994 fix idx_vector::loop for masks
Jaroslav Hajek <highegg@gmail.com>
parents: 9894
diff changeset
945
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
946 ret = j;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
947 }
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
948 break;
10487
942386d6d1a5 style fixes
John W. Eaton <jwe@octave.org>
parents: 10486
diff changeset
949
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
950 default:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
951 assert (false);
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
952 break;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
953 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
954
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
955 return ret;
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
956 }
8290
7cbe01c21986 improve dense array indexing
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parents: 7573
diff changeset
957
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
958 // Rationale:
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
959 // This method is the key to "smart indexing". When indexing cartesian
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
960 // arrays, sometimes consecutive index vectors can be reduced into a
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
961 // single index. If rows (A) = k and i.maybe_reduce (j) gives k, then
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
962 // A(i,j)(:) is equal to A(k)(:).
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
963
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
964 // If the next index can be reduced, returns true and updates this.
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
965 OCTAVE_API bool
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
966 maybe_reduce (octave_idx_type n, const idx_vector& j, octave_idx_type nj);
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7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
967
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
968 OCTAVE_API bool
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
969 is_cont_range (octave_idx_type n, octave_idx_type& l,
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
970 octave_idx_type& u) const;
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971
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
972 // Returns the increment for ranges and colon, 0 for scalars and empty
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
973 // vectors, 1st difference otherwise.
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
974 OCTAVE_API octave_idx_type increment (void) const;
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diff changeset
975
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
976 OCTAVE_API idx_vector
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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diff changeset
977 complement (octave_idx_type n) const;
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9601
diff changeset
978
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
979 OCTAVE_API bool is_permutation (octave_idx_type n) const;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
980
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John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
981 // Returns the inverse permutation. If this is not a permutation on 1:n, the
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
982 // result is undefined (but no error unless extent () != n).
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
983 OCTAVE_API idx_vector inverse_permutation (octave_idx_type n) const;
8367
445d27d79f4e support permutation matrix objects
Jaroslav Hajek <highegg@gmail.com>
parents: 8333
diff changeset
984
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diff changeset
985 // Copies all the indices to a given array. Not allowed for colons.
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
986 OCTAVE_API void copy_data (octave_idx_type *data) const;
10512
aac9f4265048 rewrite sparse indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 10489
diff changeset
987
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
988 // If the index is a mask, convert it to index vector.
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
989 OCTAVE_API idx_vector unmask (void) const;
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents: 8972
diff changeset
990
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
991 // Unconverts the index to a scalar, Range, double array or a mask.
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
992 OCTAVE_API void
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
993 unconvert (idx_class_type& iclass, double& scalar, range<double>& range,
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
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diff changeset
994 Array<double>& array, Array<bool>& mask) const;
9879
034677ab6865 smarter treatment of mask indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9780
diff changeset
995
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
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diff changeset
996 OCTAVE_API Array<octave_idx_type> as_array (void) const;
10339
de2d43bcb083 optimize some lazy index operations
Jaroslav Hajek <highegg@gmail.com>
parents: 10312
diff changeset
997
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
998 // Raw pointer to index array. This is non-const because it may be
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
999 // necessary to mutate the index.
29646
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Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
1000 const OCTAVE_API octave_idx_type * raw (void);
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1001
29646
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Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
1002 OCTAVE_API bool isvector (void) const;
10475
739109ef88ee helper idx_vector methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10425
diff changeset
1003
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1004 // FIXME: these are here for compatibility. They should be removed
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1005 // when no longer in use.
23592
80e3bfb7bd5a maint: Deprecate is_vector and replace with isvector.
Rik <rik@octave.org>
parents: 23534
diff changeset
1006
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
1007 octave_idx_type elem (octave_idx_type n) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
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parents: 29568
diff changeset
1008 { return (*this) (n); }
8290
7cbe01c21986 improve dense array indexing
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parents: 7573
diff changeset
1009
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John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1010 bool is_colon_equiv (octave_idx_type n, int) const
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1011 { return is_colon_equiv (n); }
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7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
1012
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
1013 OCTAVE_API octave_idx_type
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
1014 freeze (octave_idx_type z_len, const char *tag, bool resize_ok = false);
8290
7cbe01c21986 improve dense array indexing
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parents: 7573
diff changeset
1015
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
1016 void sort (bool uniq = false)
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1017 { *this = sorted (uniq); }
8290
7cbe01c21986 improve dense array indexing
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parents: 7573
diff changeset
1018
29646
3e8bc8bee8e9 liboctave/array: Add visibility flags to functions declared in headers (bug #60567).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29569
diff changeset
1019 OCTAVE_API octave_idx_type ones_count (void) const;
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1020
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1021 octave_idx_type max (void) const { return extent (1) - 1; }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 7573
diff changeset
1022
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1023 private:
8290
7cbe01c21986 improve dense array indexing
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parents: 7573
diff changeset
1024
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1025 idx_base_rep *m_rep;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1026
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1027 };
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1028 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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parents:
diff changeset
1029
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1030 // Provide the following typedef for backward compatibility. Don't
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1031 // deprecate (yet) because it is used extensively.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1032
29569
29a1f8fd8ee6 move idx_vector classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 29568
diff changeset
1033 typedef octave::idx_vector idx_vector;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1034
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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parents:
diff changeset
1035 #endif