annotate liboctave/MSparse.cc @ 5540:cda6a105ae9a before-ov-branch

[project @ 2005-11-17 05:47:13 by jwe]
author jwe
date Thu, 17 Nov 2005 05:47:13 +0000
parents 4c8a2e4e0717
children 2857357f9d3c
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1 /*
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2
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3 Copyright (C) 2004 David Bateman
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4 Copyright (C) 1998-2004 Andy Adler
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5
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6 Octave is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 Octave is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program; see the file COPYING. If not, write to the
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18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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19 Boston, MA 02110-1301, USA.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include "quit.h"
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28 #include "lo-error.h"
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29 #include "MArray2.h"
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30 #include "Array-util.h"
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31
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32 #include "MSparse.h"
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33 #include "MSparse-defs.h"
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34
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35 // sparse array with math ops.
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36
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37 // Element by element MSparse by MSparse ops.
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38
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39 template <class T>
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40 MSparse<T>&
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41 operator += (MSparse<T>& a, const MSparse<T>& b)
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42 {
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43 MSparse<T> r;
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44
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45 octave_idx_type a_nr = a.rows ();
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46 octave_idx_type a_nc = a.cols ();
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47
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48 octave_idx_type b_nr = b.rows ();
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49 octave_idx_type b_nc = b.cols ();
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50
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51 if (a_nr != b_nr || a_nc != b_nc)
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52 gripe_nonconformant ("operator +=" , a_nr, a_nc, b_nr, b_nc);
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53 else
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54 {
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55 r = MSparse<T> (a_nr, a_nc, (a.nnz () + b.nnz ()));
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56
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57 octave_idx_type jx = 0;
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58 for (octave_idx_type i = 0 ; i < a_nc ; i++)
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59 {
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60 octave_idx_type ja = a.cidx(i);
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61 octave_idx_type ja_max = a.cidx(i+1);
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62 bool ja_lt_max= ja < ja_max;
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63
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64 octave_idx_type jb = b.cidx(i);
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65 octave_idx_type jb_max = b.cidx(i+1);
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66 bool jb_lt_max = jb < jb_max;
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67
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68 while (ja_lt_max || jb_lt_max )
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69 {
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70 OCTAVE_QUIT;
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71 if ((! jb_lt_max) ||
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72 (ja_lt_max && (a.ridx(ja) < b.ridx(jb))))
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73 {
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74 r.ridx(jx) = a.ridx(ja);
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75 r.data(jx) = a.data(ja) + 0.;
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76 jx++;
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77 ja++;
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78 ja_lt_max= ja < ja_max;
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79 }
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80 else if (( !ja_lt_max ) ||
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81 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) )
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82 {
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83 r.ridx(jx) = b.ridx(jb);
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84 r.data(jx) = 0. + b.data(jb);
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85 jx++;
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86 jb++;
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87 jb_lt_max= jb < jb_max;
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88 }
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89 else
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90 {
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91 if ((a.data(ja) + b.data(jb)) != 0.)
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92 {
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93 r.data(jx) = a.data(ja) + b.data(jb);
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94 r.ridx(jx) = a.ridx(ja);
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95 jx++;
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96 }
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97 ja++;
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98 ja_lt_max= ja < ja_max;
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99 jb++;
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100 jb_lt_max= jb < jb_max;
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101 }
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102 }
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103 r.cidx(i+1) = jx;
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104 }
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105
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106 a = r.maybe_compress ();
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107 }
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108
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109 return a;
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110 }
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111
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112 template <class T>
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113 MSparse<T>&
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114 operator -= (MSparse<T>& a, const MSparse<T>& b)
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115 {
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116 MSparse<T> r;
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117
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118 octave_idx_type a_nr = a.rows ();
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119 octave_idx_type a_nc = a.cols ();
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120
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121 octave_idx_type b_nr = b.rows ();
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122 octave_idx_type b_nc = b.cols ();
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123
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124 if (a_nr != b_nr || a_nc != b_nc)
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125 gripe_nonconformant ("operator -=" , a_nr, a_nc, b_nr, b_nc);
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126 else
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127 {
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128 r = MSparse<T> (a_nr, a_nc, (a.nnz () + b.nnz ()));
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129
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130 octave_idx_type jx = 0;
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131 for (octave_idx_type i = 0 ; i < a_nc ; i++)
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132 {
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133 octave_idx_type ja = a.cidx(i);
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134 octave_idx_type ja_max = a.cidx(i+1);
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135 bool ja_lt_max= ja < ja_max;
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136
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137 octave_idx_type jb = b.cidx(i);
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138 octave_idx_type jb_max = b.cidx(i+1);
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139 bool jb_lt_max = jb < jb_max;
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140
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141 while (ja_lt_max || jb_lt_max )
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142 {
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143 OCTAVE_QUIT;
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144 if ((! jb_lt_max) ||
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145 (ja_lt_max && (a.ridx(ja) < b.ridx(jb))))
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146 {
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147 r.ridx(jx) = a.ridx(ja);
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148 r.data(jx) = a.data(ja) - 0.;
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149 jx++;
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150 ja++;
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151 ja_lt_max= ja < ja_max;
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152 }
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153 else if (( !ja_lt_max ) ||
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154 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) )
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155 {
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156 r.ridx(jx) = b.ridx(jb);
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157 r.data(jx) = 0. - b.data(jb);
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158 jx++;
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159 jb++;
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160 jb_lt_max= jb < jb_max;
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161 }
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162 else
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163 {
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164 if ((a.data(ja) - b.data(jb)) != 0.)
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165 {
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166 r.data(jx) = a.data(ja) - b.data(jb);
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167 r.ridx(jx) = a.ridx(ja);
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168 jx++;
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169 }
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170 ja++;
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171 ja_lt_max= ja < ja_max;
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172 jb++;
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173 jb_lt_max= jb < jb_max;
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174 }
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175 }
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176 r.cidx(i+1) = jx;
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177 }
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178
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179 a = r.maybe_compress ();
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180 }
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181
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182 return a;
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183 }
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184
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185 // Element by element MSparse by scalar ops.
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186
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187 #define SPARSE_A2S_OP_1(OP) \
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188 template <class T> \
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189 MArray2<T> \
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190 operator OP (const MSparse<T>& a, const T& s) \
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191 { \
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192 octave_idx_type nr = a.rows (); \
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193 octave_idx_type nc = a.cols (); \
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194 \
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195 MArray2<T> r (nr, nc, (0.0 OP s)); \
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196 \
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197 for (octave_idx_type j = 0; j < nc; j++) \
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198 for (octave_idx_type i = a.cidx(j); i < a.cidx(j+1); i++) \
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199 r.elem (a.ridx (i), j) = a.data (i) OP s; \
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200 return r; \
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201 }
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202
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203 #define SPARSE_A2S_OP_2(OP) \
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204 template <class T> \
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205 MSparse<T> \
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206 operator OP (const MSparse<T>& a, const T& s) \
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207 { \
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208 octave_idx_type nr = a.rows (); \
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209 octave_idx_type nc = a.cols (); \
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210 octave_idx_type nz = a.nnz (); \
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211 \
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212 MSparse<T> r (nr, nc, nz); \
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213 \
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214 for (octave_idx_type i = 0; i < nz; i++) \
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215 { \
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216 r.data(i) = a.data(i) OP s; \
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217 r.ridx(i) = a.ridx(i); \
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218 } \
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219 for (octave_idx_type i = 0; i < nc + 1; i++) \
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220 r.cidx(i) = a.cidx(i); \
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221 r.maybe_compress (true); \
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222 return r; \
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223 }
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224
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225
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226 SPARSE_A2S_OP_1 (+)
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227 SPARSE_A2S_OP_1 (-)
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228 SPARSE_A2S_OP_2 (*)
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229 SPARSE_A2S_OP_2 (/)
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230
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231 // Element by element scalar by MSparse ops.
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232
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233 #define SPARSE_SA2_OP_1(OP) \
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234 template <class T> \
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235 MArray2<T> \
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236 operator OP (const T& s, const MSparse<T>& a) \
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237 { \
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238 octave_idx_type nr = a.rows (); \
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239 octave_idx_type nc = a.cols (); \
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240 \
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241 MArray2<T> r (nr, nc, (s OP 0.0)); \
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242 \
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243 for (octave_idx_type j = 0; j < nc; j++) \
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244 for (octave_idx_type i = a.cidx(j); i < a.cidx(j+1); i++) \
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245 r.elem (a.ridx (i), j) = s OP a.data (i); \
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246 return r; \
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247 }
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248
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249 #define SPARSE_SA2_OP_2(OP) \
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250 template <class T> \
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251 MSparse<T> \
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252 operator OP (const T& s, const MSparse<T>& a) \
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253 { \
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254 octave_idx_type nr = a.rows (); \
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255 octave_idx_type nc = a.cols (); \
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256 octave_idx_type nz = a.nnz (); \
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257 \
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258 MSparse<T> r (nr, nc, nz); \
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259 \
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260 for (octave_idx_type i = 0; i < nz; i++) \
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261 { \
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262 r.data(i) = s OP a.data(i); \
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263 r.ridx(i) = a.ridx(i); \
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264 } \
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265 for (octave_idx_type i = 0; i < nc + 1; i++) \
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266 r.cidx(i) = a.cidx(i); \
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267 r.maybe_compress (true); \
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268 return r; \
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269 }
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270
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271 SPARSE_SA2_OP_1 (+)
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272 SPARSE_SA2_OP_1 (-)
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273 SPARSE_SA2_OP_2 (*)
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274 SPARSE_SA2_OP_2 (/)
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275
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276 // Element by element MSparse by MSparse ops.
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277
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278 #define SPARSE_A2A2_OP(OP) \
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279 template <class T> \
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280 MSparse<T> \
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281 operator OP (const MSparse<T>& a, const MSparse<T>& b) \
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282 { \
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283 MSparse<T> r; \
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284 \
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285 octave_idx_type a_nr = a.rows (); \
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286 octave_idx_type a_nc = a.cols (); \
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287 \
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288 octave_idx_type b_nr = b.rows (); \
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289 octave_idx_type b_nc = b.cols (); \
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290 \
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291 if (a_nr != b_nr || a_nc != b_nc) \
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292 gripe_nonconformant ("operator " # OP, a_nr, a_nc, b_nr, b_nc); \
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293 else \
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294 { \
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295 r = MSparse<T> (a_nr, a_nc, (a.nnz () + b.nnz ())); \
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296 \
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297 octave_idx_type jx = 0; \
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298 r.cidx (0) = 0; \
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299 for (octave_idx_type i = 0 ; i < a_nc ; i++) \
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300 { \
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301 octave_idx_type ja = a.cidx(i); \
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302 octave_idx_type ja_max = a.cidx(i+1); \
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303 bool ja_lt_max= ja < ja_max; \
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304 \
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305 octave_idx_type jb = b.cidx(i); \
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306 octave_idx_type jb_max = b.cidx(i+1); \
5164
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307 bool jb_lt_max = jb < jb_max; \
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308 \
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jwe
parents:
diff changeset
309 while (ja_lt_max || jb_lt_max ) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
310 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
311 OCTAVE_QUIT; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
312 if ((! jb_lt_max) || \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
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313 (ja_lt_max && (a.ridx(ja) < b.ridx(jb)))) \
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parents:
diff changeset
314 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
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315 r.ridx(jx) = a.ridx(ja); \
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316 r.data(jx) = a.data(ja) OP 0.; \
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parents:
diff changeset
317 jx++; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
318 ja++; \
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319 ja_lt_max= ja < ja_max; \
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parents:
diff changeset
320 } \
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321 else if (( !ja_lt_max ) || \
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diff changeset
322 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) ) \
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diff changeset
323 { \
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324 r.ridx(jx) = b.ridx(jb); \
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parents:
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325 r.data(jx) = 0. OP b.data(jb); \
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parents:
diff changeset
326 jx++; \
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parents:
diff changeset
327 jb++; \
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parents:
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328 jb_lt_max= jb < jb_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
329 } \
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parents:
diff changeset
330 else \
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parents:
diff changeset
331 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
332 if ((a.data(ja) OP b.data(jb)) != 0.) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
333 { \
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334 r.data(jx) = a.data(ja) OP b.data(jb); \
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335 r.ridx(jx) = a.ridx(ja); \
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parents:
diff changeset
336 jx++; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
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337 } \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
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338 ja++; \
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parents:
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339 ja_lt_max= ja < ja_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
340 jb++; \
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341 jb_lt_max= jb < jb_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
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342 } \
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parents:
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343 } \
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344 r.cidx(i+1) = jx; \
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parents:
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345 } \
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346 \
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347 r.maybe_compress (); \
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348 } \
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349 \
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350 return r; \
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351 }
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diff changeset
352
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diff changeset
353 #define SPARSE_A2A2_FCN_1(FCN, OP) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
354 template <class T> \
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diff changeset
355 MSparse<T> \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
356 FCN (const MSparse<T>& a, const MSparse<T>& b) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
357 { \
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diff changeset
358 MSparse<T> r; \
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diff changeset
359 \
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360 octave_idx_type a_nr = a.rows (); \
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361 octave_idx_type a_nc = a.cols (); \
5164
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diff changeset
362 \
5275
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diff changeset
363 octave_idx_type b_nr = b.rows (); \
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diff changeset
364 octave_idx_type b_nc = b.cols (); \
5164
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diff changeset
365 \
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parents:
diff changeset
366 if (a_nr != b_nr || a_nc != b_nc) \
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diff changeset
367 gripe_nonconformant (#FCN, a_nr, a_nc, b_nr, b_nc); \
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parents:
diff changeset
368 else \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
369 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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diff changeset
370 r = MSparse<T> (a_nr, a_nc, (a.nnz() > b.nnz() ? a.nnz() : b.nnz())); \
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diff changeset
371 \
5275
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diff changeset
372 octave_idx_type jx = 0; \
5164
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diff changeset
373 r.cidx (0) = 0; \
5275
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parents: 5164
diff changeset
374 for (octave_idx_type i = 0 ; i < a_nc ; i++) \
5164
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parents:
diff changeset
375 { \
5275
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diff changeset
376 octave_idx_type ja = a.cidx(i); \
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diff changeset
377 octave_idx_type ja_max = a.cidx(i+1); \
5164
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diff changeset
378 bool ja_lt_max= ja < ja_max; \
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parents:
diff changeset
379 \
5275
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diff changeset
380 octave_idx_type jb = b.cidx(i); \
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parents: 5164
diff changeset
381 octave_idx_type jb_max = b.cidx(i+1); \
5164
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diff changeset
382 bool jb_lt_max = jb < jb_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
383 \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
384 while (ja_lt_max || jb_lt_max ) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
385 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
386 OCTAVE_QUIT; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
387 if ((! jb_lt_max) || \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
388 (ja_lt_max && (a.ridx(ja) < b.ridx(jb)))) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
389 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
390 ja++; ja_lt_max= ja < ja_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
391 } \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
392 else if (( !ja_lt_max ) || \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
393 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) ) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
394 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
395 jb++; jb_lt_max= jb < jb_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
396 } \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
397 else \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
398 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
399 if ((a.data(ja) OP b.data(jb)) != 0.) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
400 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
401 r.data(jx) = a.data(ja) OP b.data(jb); \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
402 r.ridx(jx) = a.ridx(ja); \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
403 jx++; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
404 } \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
405 ja++; ja_lt_max= ja < ja_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
406 jb++; jb_lt_max= jb < jb_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
407 } \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
408 } \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
409 r.cidx(i+1) = jx; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
410 } \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
411 \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
412 r.maybe_compress (); \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
413 } \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
414 \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
415 return r; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
416 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
417
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
418 #define SPARSE_A2A2_FCN_2(FCN, OP) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
419 template <class T> \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
420 MSparse<T> \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
421 FCN (const MSparse<T>& a, const MSparse<T>& b) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
422 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
423 MSparse<T> r; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
424 T Zero = T (); \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
425 \
5275
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parents: 5164
diff changeset
426 octave_idx_type a_nr = a.rows (); \
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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parents: 5164
diff changeset
427 octave_idx_type a_nc = a.cols (); \
5164
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parents:
diff changeset
428 \
5275
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diff changeset
429 octave_idx_type b_nr = b.rows (); \
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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parents: 5164
diff changeset
430 octave_idx_type b_nc = b.cols (); \
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
431 \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
432 if (a_nr != b_nr || a_nc != b_nc) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
433 gripe_nonconformant (#FCN, a_nr, a_nc, b_nr, b_nc); \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
434 else \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
435 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
436 r = MSparse<T>( a_nr, a_nc, (Zero OP Zero)); \
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jwe
parents:
diff changeset
437 \
5275
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parents: 5164
diff changeset
438 for (octave_idx_type i = 0 ; i < a_nc ; i++) \
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
439 { \
5275
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parents: 5164
diff changeset
440 octave_idx_type ja = a.cidx(i); \
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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parents: 5164
diff changeset
441 octave_idx_type ja_max = a.cidx(i+1); \
5164
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parents:
diff changeset
442 bool ja_lt_max= ja < ja_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
443 \
5275
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parents: 5164
diff changeset
444 octave_idx_type jb = b.cidx(i); \
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
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parents: 5164
diff changeset
445 octave_idx_type jb_max = b.cidx(i+1); \
5164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
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parents:
diff changeset
446 bool jb_lt_max = jb < jb_max; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
447 \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
448 while (ja_lt_max || jb_lt_max ) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
449 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
450 OCTAVE_QUIT; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
451 if ((! jb_lt_max) || \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
452 (ja_lt_max && (a.ridx(ja) < b.ridx(jb)))) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
453 { \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
454 r.elem (a.ridx(ja),i) = a.data(ja) OP Zero; \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
parents:
diff changeset
455 ja++; ja_lt_max= ja < ja_max; \
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 else if (( !ja_lt_max ) || \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe]
jwe
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diff changeset
458 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) ) \
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459 { \
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460 r.elem (b.ridx(jb),i) = Zero OP b.data(jb); \
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461 jb++; jb_lt_max= jb < jb_max; \
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462 } \
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463 else \
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464 { \
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465 r.elem (a.ridx(ja),i) = a.data(ja) OP b.data(jb); \
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466 ja++; ja_lt_max= ja < ja_max; \
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467 jb++; jb_lt_max= jb < jb_max; \
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468 } \
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469 } \
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470 } \
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471 \
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472 r.maybe_compress (true); \
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473 } \
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474 \
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475 return r; \
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476 }
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477
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478 SPARSE_A2A2_OP (+)
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479 SPARSE_A2A2_OP (-)
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480 SPARSE_A2A2_FCN_1 (product, *)
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481 SPARSE_A2A2_FCN_2 (quotient, /)
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482
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483 // Unary MSparse ops.
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484
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485 template <class T>
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486 MSparse<T>
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487 operator + (const MSparse<T>& a)
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488 {
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489 return a;
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490 }
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491
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492 template <class T>
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493 MSparse<T>
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494 operator - (const MSparse<T>& a)
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495 {
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496 MSparse<T> retval (a);
5275
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497 octave_idx_type nz = a.nnz ();
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498 for (octave_idx_type i = 0; i < nz; i++)
5164
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499 retval.data(i) = - retval.data(i);
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500 return retval;
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501 }
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502
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503 /*
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504 ;;; Local Variables: ***
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505 ;;; mode: C++ ***
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506 ;;; End: ***
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507 */