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annotate liboctave/Sparse.h @ 16088:b29b10fbb744 stable release-3-6-4

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Version 3.6.4 released. * configure.ac (AC_INIT): Version is now 3.6.4. (OCTAVE_RELEASE_DATE): Now 2013-02-21.
author John W. Eaton <jwe@octave.org>
date Thu, 21 Feb 2013 15:17:54 -0500
parents 72c96de7a403
children 8483286c0a13
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1 // Template sparse classes
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2 /*
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3
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4 Copyright (C) 2004-2012 David Bateman
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5 Copyright (C) 1998-2004 Andy Adler
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6 Copyright (C) 2010 VZLU Prague
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7
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8 This file is part of Octave.
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9
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10 Octave is free software; you can redistribute it and/or modify it
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11 under the terms of the GNU General Public License as published by the
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12 Free Software Foundation; either version 3 of the License, or (at your
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13 option) any later version.
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14
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15 Octave is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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18 for more details.
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19
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20 You should have received a copy of the GNU General Public License
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21 along with Octave; see the file COPYING. If not, see
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22 <http://www.gnu.org/licenses/>.
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23
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24 */
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25
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26 #if !defined (octave_Sparse_h)
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27 #define octave_Sparse_h 1
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28
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29 #include <cassert>
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30 #include <cstddef>
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31
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32 #include <iosfwd>
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33 #include <algorithm>
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34
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35 #include "Array.h"
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36 #include "dim-vector.h"
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37 #include "lo-error.h"
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38 #include "lo-utils.h"
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39
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40 #include "oct-sort.h"
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41 #include "oct-mem.h"
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42
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43 class idx_vector;
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44 class PermMatrix;
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45
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46 // Two dimensional sparse class. Handles the reference counting for
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47 // all the derived classes.
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48
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49 template <class T>
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50 class
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51 Sparse
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52 {
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53 public:
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54
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55 typedef T element_type;
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56
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57 protected:
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58 //--------------------------------------------------------------------
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59 // The real representation of all Sparse arrays.
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60 //--------------------------------------------------------------------
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61
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62 class OCTAVE_API SparseRep
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63 {
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64 public:
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65
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66 T *d;
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67 octave_idx_type *r;
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68 octave_idx_type *c;
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69 octave_idx_type nzmx;
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70 octave_idx_type nrows;
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71 octave_idx_type ncols;
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72 octave_refcount<int> count;
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73
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74 SparseRep (void) : d (0), r (0), c (new octave_idx_type [1]), nzmx (0), nrows (0),
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75 ncols (0), count (1) { c[0] = 0; }
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76
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77 SparseRep (octave_idx_type n) : d (0), r (0), c (new octave_idx_type [n+1]), nzmx (0), nrows (n),
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78 ncols (n), count (1)
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79 {
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80 for (octave_idx_type i = 0; i < n + 1; i++)
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81 c[i] = 0;
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82 }
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83
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84 SparseRep (octave_idx_type nr, octave_idx_type nc) : d (0), r (0), c (new octave_idx_type [nc+1]), nzmx (0),
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85 nrows (nr), ncols (nc), count (1)
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86 {
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87 for (octave_idx_type i = 0; i < nc + 1; i++)
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88 c[i] = 0;
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89 }
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90
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91 SparseRep (octave_idx_type nr, octave_idx_type nc, octave_idx_type nz) : d (new T [nz]),
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92 r (new octave_idx_type [nz]), c (new octave_idx_type [nc+1]), nzmx (nz), nrows (nr),
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93 ncols (nc), count (1)
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94 {
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95 for (octave_idx_type i = 0; i < nc + 1; i++)
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96 c[i] = 0;
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97 }
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98
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99 SparseRep (const SparseRep& a)
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100 : d (new T [a.nzmx]), r (new octave_idx_type [a.nzmx]), c (new octave_idx_type [a.ncols + 1]),
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101 nzmx (a.nzmx), nrows (a.nrows), ncols (a.ncols), count (1)
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102 {
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103 octave_idx_type nz = a.nnz ();
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104 copy_or_memcpy (nz, a.d, d);
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105 copy_or_memcpy (nz, a.r, r);
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106 copy_or_memcpy (ncols + 1, a.c, c);
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107 }
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108
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109 ~SparseRep (void) { delete [] d; delete [] r; delete [] c; }
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110
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111 octave_idx_type length (void) const { return nzmx; }
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112
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113 octave_idx_type nnz (void) const { return c [ncols]; }
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114
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115 T& elem (octave_idx_type _r, octave_idx_type _c);
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116
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117 T celem (octave_idx_type _r, octave_idx_type _c) const;
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118
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119 T& data (octave_idx_type i) { return d[i]; }
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120
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121 T cdata (octave_idx_type i) const { return d[i]; }
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122
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123 octave_idx_type& ridx (octave_idx_type i) { return r[i]; }
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124
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125 octave_idx_type cridx (octave_idx_type i) const { return r[i]; }
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126
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127 octave_idx_type& cidx (octave_idx_type i) { return c[i]; }
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128
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129 octave_idx_type ccidx (octave_idx_type i) const { return c[i]; }
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130
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131 void maybe_compress (bool remove_zeros);
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132
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133 void change_length (octave_idx_type nz);
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134
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135 bool indices_ok (void) const;
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136
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137 private:
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138
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139 // No assignment!
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140
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141 SparseRep& operator = (const SparseRep& a);
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142 };
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143
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144 //--------------------------------------------------------------------
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145
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146 void make_unique (void)
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147 {
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148 if (rep->count > 1)
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149 {
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150 SparseRep *r = new SparseRep (*rep);
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151
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152 if (--rep->count == 0)
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153 delete rep;
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154
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155 rep = r;
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156 }
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157 }
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158
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159 public:
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160
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161 // !!! WARNING !!! -- these should be protected, not public. You
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162 // should not access these data members directly!
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163
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164 typename Sparse<T>::SparseRep *rep;
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165
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166 dim_vector dimensions;
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167
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168 private:
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169
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170 typename Sparse<T>::SparseRep *nil_rep (void) const
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171 {
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172 static typename Sparse<T>::SparseRep nr;
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173 return &nr;
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174 }
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175
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176 public:
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177
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178 Sparse (void)
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179 : rep (nil_rep ()), dimensions (dim_vector(0,0))
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180 {
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181 rep->count++;
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182 }
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183
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184 explicit Sparse (octave_idx_type n)
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185 : rep (new typename Sparse<T>::SparseRep (n)),
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186 dimensions (dim_vector (n, n)) { }
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187
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188 explicit Sparse (octave_idx_type nr, octave_idx_type nc)
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189 : rep (new typename Sparse<T>::SparseRep (nr, nc)),
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190 dimensions (dim_vector (nr, nc)) { }
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191
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192 explicit Sparse (octave_idx_type nr, octave_idx_type nc, T val);
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193
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194 Sparse (const dim_vector& dv, octave_idx_type nz)
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195 : rep (new typename Sparse<T>::SparseRep (dv(0), dv(1), nz)),
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196 dimensions (dv) { }
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197
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198 Sparse (octave_idx_type nr, octave_idx_type nc, octave_idx_type nz)
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199 : rep (new typename Sparse<T>::SparseRep (nr, nc, nz)),
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200 dimensions (dim_vector (nr, nc)) { }
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201
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202 // Both SparseMatrix and SparseBoolMatrix need this ctor, and this
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203 // is their only common ancestor.
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204 explicit Sparse (const PermMatrix& a);
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205
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206 // Type conversion case. Preserves capacity ().
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207 template <class U>
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208 Sparse (const Sparse<U>& a)
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209 : rep (new typename Sparse<T>::SparseRep (a.rep->nrows, a.rep->ncols, a.rep->nzmx)),
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210 dimensions (a.dimensions)
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211 {
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212 octave_idx_type nz = a.nnz ();
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213 std::copy (a.rep->d, a.rep->d + nz, rep->d);
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214 copy_or_memcpy (nz, a.rep->r, rep->r);
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215 copy_or_memcpy (rep->ncols + 1, a.rep->c, rep->c);
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216 }
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217
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218 // No type conversion case.
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219 Sparse (const Sparse<T>& a)
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220 : rep (a.rep), dimensions (a.dimensions)
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221 {
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222 rep->count++;
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223 }
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224
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225 public:
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226
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227 Sparse (const dim_vector& dv);
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228
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229 Sparse (const Sparse<T>& a, const dim_vector& dv);
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230
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231 Sparse (const Array<T>& a, const idx_vector& r, const idx_vector& c,
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232 octave_idx_type nr = -1, octave_idx_type nc = -1,
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233 bool sum_terms = true, octave_idx_type nzm = -1);
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234
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235 // Sparsify a normal matrix
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236 Sparse (const Array<T>& a);
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237
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238 virtual ~Sparse (void);
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239
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240 Sparse<T>& operator = (const Sparse<T>& a);
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241
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242 // Note that nzmax and capacity are the amount of storage for
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243 // non-zero elements, while nnz is the actual number of non-zero
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244 // terms.
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245 octave_idx_type nzmax (void) const { return rep->length (); }
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246 octave_idx_type capacity (void) const { return nzmax (); }
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247 octave_idx_type nnz (void) const { return rep->nnz (); }
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248
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249 // Querying the number of elements (incl. zeros) may overflow the index type,
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250 // so don't do it unless you really need it.
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251 octave_idx_type numel (void) const
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252 {
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253 return dimensions.safe_numel ();
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254 }
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255
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256 octave_idx_type nelem (void) const { return capacity (); }
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257 octave_idx_type length (void) const { return numel (); }
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258
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259 octave_idx_type dim1 (void) const { return dimensions(0); }
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260 octave_idx_type dim2 (void) const { return dimensions(1); }
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261
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262 octave_idx_type rows (void) const { return dim1 (); }
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263 octave_idx_type cols (void) const { return dim2 (); }
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264 octave_idx_type columns (void) const { return dim2 (); }
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265
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266 octave_idx_type get_row_index (octave_idx_type k) { return ridx (k); }
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267 octave_idx_type get_col_index (octave_idx_type k)
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268 {
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269 octave_idx_type ret = 0;
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270 while (cidx(ret+1) < k)
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271 ret++;
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272 return ret;
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273 }
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274
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275 size_t byte_size (void) const
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276 {
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277 return (static_cast<size_t>(cols () + 1) * sizeof (octave_idx_type)
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278 + static_cast<size_t> (capacity ()) * (sizeof (T) + sizeof (octave_idx_type)));
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279 }
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280
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281 dim_vector dims (void) const { return dimensions; }
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282
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283 Sparse<T> squeeze (void) const { return *this; }
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284
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285 octave_idx_type compute_index (const Array<octave_idx_type>& ra_idx) const;
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286
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287 T range_error (const char *fcn, octave_idx_type n) const;
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288 T& range_error (const char *fcn, octave_idx_type n);
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289
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290 T range_error (const char *fcn, octave_idx_type i, octave_idx_type j) const;
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291 T& range_error (const char *fcn, octave_idx_type i, octave_idx_type j);
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292
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diff changeset
293 T range_error (const char *fcn, const Array<octave_idx_type>& ra_idx) const;
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294 T& range_error (const char *fcn, const Array<octave_idx_type>& ra_idx);
5164
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295
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296 // No checking, even for multiple references, ever.
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297
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298 T& xelem (octave_idx_type n)
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299 {
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300 octave_idx_type i = n % rows (), j = n / rows();
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301 return xelem (i, j);
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302 }
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303
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304 T xelem (octave_idx_type n) const
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305 {
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306 octave_idx_type i = n % rows (), j = n / rows();
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307 return xelem (i, j);
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308 }
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309
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310 T& xelem (octave_idx_type i, octave_idx_type j) { return rep->elem (i, j); }
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311 T xelem (octave_idx_type i, octave_idx_type j) const { return rep->celem (i, j); }
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312
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313 T& xelem (const Array<octave_idx_type>& ra_idx)
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314 { return xelem (compute_index (ra_idx)); }
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315
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316 T xelem (const Array<octave_idx_type>& ra_idx) const
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317 { return xelem (compute_index (ra_idx)); }
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318
5775
ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe]
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319 // FIXME -- would be nice to fix this so that we don't
5164
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320 // unnecessarily force a copy, but that is not so easy, and I see no
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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321 // clean way to do it.
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322
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323 T& checkelem (octave_idx_type n)
5164
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324 {
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325 if (n < 0 || n >= numel ())
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326 return range_error ("T& Sparse<T>::checkelem", n);
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327 else
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328 {
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329 make_unique ();
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330 return xelem (n);
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331 }
5164
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332 }
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333
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334 T& checkelem (octave_idx_type i, octave_idx_type j)
5164
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335 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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336 if (i < 0 || j < 0 || i >= dim1 () || j >= dim2 ())
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337 return range_error ("T& Sparse<T>::checkelem", i, j);
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338 else
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339 {
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340 make_unique ();
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341 return xelem (i, j);
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342 }
5164
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343 }
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344
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345 T& checkelem (const Array<octave_idx_type>& ra_idx)
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346 {
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347 octave_idx_type i = compute_index (ra_idx);
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348
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349 if (i < 0)
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350 return range_error ("T& Sparse<T>::checkelem", ra_idx);
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351 else
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352 return elem (i);
5164
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353 }
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354
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diff changeset
355 T& elem (octave_idx_type n)
5164
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356 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
357 make_unique ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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358 return xelem (n);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
359 }
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diff changeset
360
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361 T& elem (octave_idx_type i, octave_idx_type j)
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362 {
5164
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363 make_unique ();
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364 return xelem (i, j);
5164
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365 }
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366
5275
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367 T& elem (const Array<octave_idx_type>& ra_idx)
5164
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368 { return Sparse<T>::elem (compute_index (ra_idx)); }
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369
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diff changeset
370 #if defined (BOUNDS_CHECKING)
5275
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371 T& operator () (octave_idx_type n) { return checkelem (n); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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372 T& operator () (octave_idx_type i, octave_idx_type j) { return checkelem (i, j); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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diff changeset
373 T& operator () (const Array<octave_idx_type>& ra_idx) { return checkelem (ra_idx); }
5164
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374 #else
5275
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diff changeset
375 T& operator () (octave_idx_type n) { return elem (n); }
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diff changeset
376 T& operator () (octave_idx_type i, octave_idx_type j) { return elem (i, j); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
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diff changeset
377 T& operator () (const Array<octave_idx_type>& ra_idx) { return elem (ra_idx); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
378 #endif
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
379
5275
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diff changeset
380 T checkelem (octave_idx_type n) const
5164
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diff changeset
381 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
382 if (n < 0 || n >= numel ())
10312
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diff changeset
383 return range_error ("T Sparse<T>::checkelem", n);
5164
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diff changeset
384 else
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cbc402e64d83 untabify liboctave header files
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diff changeset
385 return xelem (n);
5164
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diff changeset
386 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
387
5275
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diff changeset
388 T checkelem (octave_idx_type i, octave_idx_type j) const
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
389 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
390 if (i < 0 || j < 0 || i >= dim1 () || j >= dim2 ())
10312
cbc402e64d83 untabify liboctave header files
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diff changeset
391 return range_error ("T Sparse<T>::checkelem", i, j);
5164
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diff changeset
392 else
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diff changeset
393 return xelem (i, j);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
394 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
395
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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parents: 5164
diff changeset
396 T checkelem (const Array<octave_idx_type>& ra_idx) const
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
397 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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parents: 5164
diff changeset
398 octave_idx_type i = compute_index (ra_idx);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
399
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
400 if (i < 0)
10312
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diff changeset
401 return range_error ("T Sparse<T>::checkelem", ra_idx);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
402 else
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
403 return Sparse<T>::elem (i);
5164
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diff changeset
404 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
405
5275
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diff changeset
406 T elem (octave_idx_type n) const { return xelem (n); }
5164
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jwe
parents:
diff changeset
407
5275
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diff changeset
408 T elem (octave_idx_type i, octave_idx_type j) const { return xelem (i, j); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
409
5275
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diff changeset
410 T elem (const Array<octave_idx_type>& ra_idx) const
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
411 { return Sparse<T>::elem (compute_index (ra_idx)); }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
412
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
413 #if defined (BOUNDS_CHECKING)
5275
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diff changeset
414 T operator () (octave_idx_type n) const { return checkelem (n); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
415 T operator () (octave_idx_type i, octave_idx_type j) const { return checkelem (i, j); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
416 T operator () (const Array<octave_idx_type>& ra_idx) const { return checkelem (ra_idx); }
5164
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parents:
diff changeset
417 #else
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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diff changeset
418 T operator () (octave_idx_type n) const { return elem (n); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
419 T operator () (octave_idx_type i, octave_idx_type j) const { return elem (i, j); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
420 T operator () (const Array<octave_idx_type>& ra_idx) const { return elem (ra_idx); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
421 #endif
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
422
11586
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diff changeset
423 Sparse<T> maybe_compress (bool remove_zeros = false)
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
424 {
10497
cb7ffe7288f0 improve & fix SparseRep reallocation and compression
Jaroslav Hajek <highegg@gmail.com>
parents: 10490
diff changeset
425 if (remove_zeros)
cb7ffe7288f0 improve & fix SparseRep reallocation and compression
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parents: 10490
diff changeset
426 make_unique (); // Needs to unshare because elements are removed.
cb7ffe7288f0 improve & fix SparseRep reallocation and compression
Jaroslav Hajek <highegg@gmail.com>
parents: 10490
diff changeset
427
11586
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parents: 11523
diff changeset
428 rep->maybe_compress (remove_zeros);
12df7854fa7c strip trailing whitespace from source files
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parents: 11523
diff changeset
429 return (*this);
10497
cb7ffe7288f0 improve & fix SparseRep reallocation and compression
Jaroslav Hajek <highegg@gmail.com>
parents: 10490
diff changeset
430 }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
431
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
432 Sparse<T> reshape (const dim_vector& new_dims) const;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
433
5275
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parents: 5164
diff changeset
434 Sparse<T> permute (const Array<octave_idx_type>& vec, bool inv = false) const;
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
435
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
436 Sparse<T> ipermute (const Array<octave_idx_type>& vec) const
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
437 { return permute (vec, true); }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
438
10425
0677c5d80b77 rewrite 1D sparse indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 10421
diff changeset
439 void resize1 (octave_idx_type n);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
440
10425
0677c5d80b77 rewrite 1D sparse indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 10421
diff changeset
441 void resize (octave_idx_type r, octave_idx_type c);
0677c5d80b77 rewrite 1D sparse indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 10421
diff changeset
442
0677c5d80b77 rewrite 1D sparse indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 10421
diff changeset
443 void resize (const dim_vector& dv);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
444
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
445 void change_capacity (octave_idx_type nz)
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
446 {
10497
cb7ffe7288f0 improve & fix SparseRep reallocation and compression
Jaroslav Hajek <highegg@gmail.com>
parents: 10490
diff changeset
447 if (nz < nnz ())
cb7ffe7288f0 improve & fix SparseRep reallocation and compression
Jaroslav Hajek <highegg@gmail.com>
parents: 10490
diff changeset
448 make_unique (); // Unshare now because elements will be truncated.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
449 rep->change_length (nz);
10497
cb7ffe7288f0 improve & fix SparseRep reallocation and compression
Jaroslav Hajek <highegg@gmail.com>
parents: 10490
diff changeset
450 }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
451
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
452 Sparse<T>& insert (const Sparse<T>& a, octave_idx_type r, octave_idx_type c);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
453 Sparse<T>& insert (const Sparse<T>& a, const Array<octave_idx_type>& idx);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
454
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
455 bool is_square (void) const { return (dim1 () == dim2 ()); }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
456
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
457 bool is_empty (void) const { return (rows () < 1 && cols () < 1); }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
458
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
459 Sparse<T> transpose (void) const;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
460
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
461 T* data (void) { make_unique (); return rep->d; }
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
462 T& data (octave_idx_type i) { make_unique (); return rep->data (i); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
463 T* xdata (void) { return rep->d; }
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
464 T& xdata (octave_idx_type i) { return rep->data (i); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
465
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
466 T data (octave_idx_type i) const { return rep->data (i); }
5900
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
467 // FIXME -- shouldn't this be returning const T*?
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
468 T* data (void) const { return rep->d; }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
469
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
470 octave_idx_type* ridx (void) { make_unique (); return rep->r; }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
471 octave_idx_type& ridx (octave_idx_type i) { make_unique (); return rep->ridx (i); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
472 octave_idx_type* xridx (void) { return rep->r; }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
473 octave_idx_type& xridx (octave_idx_type i) { return rep->ridx (i); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
474
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
475 octave_idx_type ridx (octave_idx_type i) const { return rep->cridx (i); }
5900
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
476 // FIXME -- shouldn't this be returning const octave_idx_type*?
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
477 octave_idx_type* ridx (void) const { return rep->r; }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
478
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
479 octave_idx_type* cidx (void) { make_unique (); return rep->c; }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
480 octave_idx_type& cidx (octave_idx_type i) { make_unique (); return rep->cidx (i); }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
481 octave_idx_type* xcidx (void) { return rep->c; }
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
482 octave_idx_type& xcidx (octave_idx_type i) { return rep->cidx (i); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
483
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
484 octave_idx_type cidx (octave_idx_type i) const { return rep->ccidx (i); }
5900
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
485 // FIXME -- shouldn't this be returning const octave_idx_type*?
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
486 octave_idx_type* cidx (void) const { return rep->c; }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
487
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5164
diff changeset
488 octave_idx_type ndims (void) const { return dimensions.length (); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
489
10490
fdccd69d26bd rewrite sparse null assignment (part 2)
Jaroslav Hajek <highegg@gmail.com>
parents: 10480
diff changeset
490 void delete_elements (const idx_vector& i);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
491
10490
fdccd69d26bd rewrite sparse null assignment (part 2)
Jaroslav Hajek <highegg@gmail.com>
parents: 10480
diff changeset
492 void delete_elements (int dim, const idx_vector& i);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
493
10490
fdccd69d26bd rewrite sparse null assignment (part 2)
Jaroslav Hajek <highegg@gmail.com>
parents: 10480
diff changeset
494 void delete_elements (const idx_vector& i, const idx_vector& j);
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
495
10421
99e9bae2d81e improve sparse indexing interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10382
diff changeset
496 Sparse<T> index (const idx_vector& i, bool resize_ok = false) const;
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
497
10421
99e9bae2d81e improve sparse indexing interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10382
diff changeset
498 Sparse<T> index (const idx_vector& i, const idx_vector& j, bool resize_ok = false) const;
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
499
10512
aac9f4265048 rewrite sparse indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 10497
diff changeset
500 void assign (const idx_vector& i, const Sparse<T>& rhs);
aac9f4265048 rewrite sparse indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 10497
diff changeset
501
aac9f4265048 rewrite sparse indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 10497
diff changeset
502 void assign (const idx_vector& i, const idx_vector& j, const Sparse<T>& rhs);
aac9f4265048 rewrite sparse indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 10497
diff changeset
503
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
504 void print_info (std::ostream& os, const std::string& prefix) const;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
505
5900
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
506 // Unsafe. These functions exist to support the MEX interface.
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
507 // You should not use them anywhere else.
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
508 void *mex_get_data (void) const { return const_cast<T *> (data ()); }
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
509
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
510 octave_idx_type *mex_get_ir (void) const { return const_cast<octave_idx_type *> (ridx ()); }
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
511
c20eb7330d13 [project @ 2006-07-22 08:31:16 by jwe]
jwe
parents: 5775
diff changeset
512 octave_idx_type *mex_get_jc (void) const { return const_cast<octave_idx_type *> (cidx ()); }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7017
diff changeset
513
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7433
diff changeset
514 Sparse<T> sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7017
diff changeset
515 Sparse<T> sort (Array<octave_idx_type> &sidx, octave_idx_type dim = 0,
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
516 sortmode mode = ASCENDING) const;
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
517
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7602
diff changeset
518 Sparse<T> diag (octave_idx_type k = 0) const;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7602
diff changeset
519
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10537
diff changeset
520 // dim = -1 and dim = -2 are special; see Array<T>::cat description.
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10527
diff changeset
521 static Sparse<T>
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10527
diff changeset
522 cat (int dim, octave_idx_type n, const Sparse<T> *sparse_list);
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10527
diff changeset
523
10425
0677c5d80b77 rewrite 1D sparse indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 10421
diff changeset
524 Array<T> array_value (void) const;
0677c5d80b77 rewrite 1D sparse indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 10421
diff changeset
525
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
526 template <class U, class F>
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
527 Sparse<U>
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
528 map (F fcn) const
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
529 {
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
530 Sparse<U> result;
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
531 U f_zero = fcn (0.);
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
532
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
533 if (f_zero != 0.)
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
534 {
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
535 octave_idx_type nr = rows ();
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
536 octave_idx_type nc = cols ();
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
537
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
538 result = Sparse<U> (nr, nc, f_zero);
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
539
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
540 for (octave_idx_type j = 0; j < nc; j++)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
541 for (octave_idx_type i = cidx(j); i < cidx (j+1); i++)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
542 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
543 octave_quit ();
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
544 /* Use data instead of elem for better performance. */
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
545 result.data (ridx (i) + j * nr) = fcn (data(i));
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
546 }
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
547
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
548 result.maybe_compress (true);
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
549 }
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
550 else
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
551 {
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
552 octave_idx_type nz = nnz ();
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
553 octave_idx_type nr = rows ();
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
554 octave_idx_type nc = cols ();
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
555
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
556 result = Sparse<U> (nr, nc, nz);
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
557 octave_idx_type ii = 0;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
558 result.cidx (ii) = 0;
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
559
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
560 for (octave_idx_type j = 0; j < nc; j++)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
561 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
562 for (octave_idx_type i = cidx(j); i < cidx (j+1); i++)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
563 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
564 U val = fcn (data (i));
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
565 if (val != 0.0)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
566 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
567 result.data (ii) = val;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
568 result.ridx (ii++) = ridx (i);
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
569 }
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
570 octave_quit ();
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
571 }
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
572 result.cidx (j+1) = ii;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
573 }
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
574
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
575 result.maybe_compress (false);
7602
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
576 }
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
577
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
578 return result;
7bfaa9611558 Rewrite sparse mappers in terms of a functor template function
David Bateman <dbateman@free.fr>
parents: 7470
diff changeset
579 }
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
580
9812
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
581 // Overloads for function references.
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
582 template <class U>
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
583 Sparse<U>
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
584 map (U (&fcn) (T)) const
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
585 { return map<U, U (&) (T)> (fcn); }
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
586
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
587 template <class U>
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
588 Sparse<U>
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
589 map (U (&fcn) (const T&)) const
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
590 { return map<U, U (&) (const T&)> (fcn); }
f80c566bc751 improve unary mapper system
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
591
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
592 bool indices_ok (void) const { return rep->indices_ok (); }
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
593 };
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
594
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
595 template<typename T>
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
596 std::istream&
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
597 read_sparse_matrix (std::istream& is, Sparse<T>& a,
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
598 T (*read_fcn) (std::istream&))
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
599 {
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
600 octave_idx_type nr = a.rows ();
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
601 octave_idx_type nc = a.cols ();
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
602 octave_idx_type nz = a.nzmax ();
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
603
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
604 if (nr > 0 && nc > 0)
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
605 {
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
606 octave_idx_type itmp;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
607 octave_idx_type jtmp;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
608 octave_idx_type iold = 0;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
609 octave_idx_type jold = 0;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
610 octave_idx_type ii = 0;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
611 T tmp;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
612
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
613 a.cidx (0) = 0;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
614 for (octave_idx_type i = 0; i < nz; i++)
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
615 {
9829
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
616 itmp = 0; jtmp = 0;
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
617 is >> itmp;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
618 itmp--;
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
619
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
620 is >> jtmp;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
621 jtmp--;
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
622
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
623 if (itmp < 0 || itmp >= nr)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
624 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
625 (*current_liboctave_error_handler)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
626 ("invalid sparse matrix: row index = %d out of range",
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
627 itmp + 1);
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
628 is.setstate (std::ios::failbit);
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
629 goto done;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
630 }
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
631
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
632 if (jtmp < 0 || jtmp >= nc)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
633 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
634 (*current_liboctave_error_handler)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
635 ("invalid sparse matrix: column index = %d out of range",
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
636 jtmp + 1);
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
637 is.setstate (std::ios::failbit);
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
638 goto done;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
639 }
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
640
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
641 if (jtmp < jold)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
642 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
643 (*current_liboctave_error_handler)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
644 ("invalid sparse matrix: column indices must appear in ascending order");
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
645 is.setstate (std::ios::failbit);
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
646 goto done;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
647 }
9829
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
648 else if (jtmp > jold)
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
649 {
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
650 for (octave_idx_type j = jold; j < jtmp; j++)
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
651 a.cidx(j+1) = ii;
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
652 }
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
653 else if (itmp < iold)
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
654 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
655 (*current_liboctave_error_handler)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
656 ("invalid sparse matrix: row indices must appear in ascending order in each column");
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
657 is.setstate (std::ios::failbit);
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
658 goto done;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
659 }
9829
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
660
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
661 iold = itmp;
9829
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
662 jold = jtmp;
8fd88cc36fa4 fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents: 9812
diff changeset
663
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
664 tmp = read_fcn (is);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
665
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
666 if (is)
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
667 {
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
668 a.data (ii) = tmp;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
669 a.ridx (ii++) = itmp;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
670 }
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
671 else
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
672 goto done;
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
673 }
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
674
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
675 for (octave_idx_type j = jold; j < nc; j++)
10312
cbc402e64d83 untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
676 a.cidx(j+1) = ii;
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
677 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
678
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
679 done:
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
680
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
681 return is;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
682 }
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
683
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
684 #endif