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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 Free |
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18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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19 |
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20 */ |
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21 |
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22 #ifdef HAVE_CONFIG_H |
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23 #include <config.h> |
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24 #endif |
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25 |
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26 #include "quit.h" |
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27 #include "lo-error.h" |
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28 #include "MArray2.h" |
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29 #include "Array-util.h" |
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30 |
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31 #include "MSparse.h" |
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32 #include "MSparse-defs.h" |
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33 |
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34 // sparse array with math ops. |
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35 |
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36 // Element by element MSparse by MSparse ops. |
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37 |
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38 template <class T> |
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39 MSparse<T>& |
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40 operator += (MSparse<T>& a, const MSparse<T>& b) |
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41 { |
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42 MSparse<T> r; |
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43 |
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44 octave_idx_type a_nr = a.rows (); |
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45 octave_idx_type a_nc = a.cols (); |
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46 |
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47 octave_idx_type b_nr = b.rows (); |
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48 octave_idx_type b_nc = b.cols (); |
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49 |
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50 if (a_nr != b_nr || a_nc != b_nc) |
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51 gripe_nonconformant ("operator +=" , a_nr, a_nc, b_nr, b_nc); |
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52 else |
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53 { |
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54 r = MSparse<T> (a_nr, a_nc, (a.nnz () + b.nnz ())); |
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55 |
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56 octave_idx_type jx = 0; |
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57 for (octave_idx_type i = 0 ; i < a_nc ; i++) |
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58 { |
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59 octave_idx_type ja = a.cidx(i); |
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60 octave_idx_type ja_max = a.cidx(i+1); |
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61 bool ja_lt_max= ja < ja_max; |
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62 |
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63 octave_idx_type jb = b.cidx(i); |
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64 octave_idx_type jb_max = b.cidx(i+1); |
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65 bool jb_lt_max = jb < jb_max; |
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66 |
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67 while (ja_lt_max || jb_lt_max ) |
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68 { |
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69 OCTAVE_QUIT; |
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70 if ((! jb_lt_max) || |
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71 (ja_lt_max && (a.ridx(ja) < b.ridx(jb)))) |
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72 { |
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73 r.ridx(jx) = a.ridx(ja); |
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74 r.data(jx) = a.data(ja) + 0.; |
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75 jx++; |
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76 ja++; |
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77 ja_lt_max= ja < ja_max; |
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78 } |
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79 else if (( !ja_lt_max ) || |
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80 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) ) |
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81 { |
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82 r.ridx(jx) = b.ridx(jb); |
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83 r.data(jx) = 0. + b.data(jb); |
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84 jx++; |
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85 jb++; |
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86 jb_lt_max= jb < jb_max; |
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87 } |
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88 else |
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89 { |
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90 if ((a.data(ja) + b.data(jb)) != 0.) |
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91 { |
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92 r.data(jx) = a.data(ja) + b.data(jb); |
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93 r.ridx(jx) = a.ridx(ja); |
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94 jx++; |
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95 } |
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96 ja++; |
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97 ja_lt_max= ja < ja_max; |
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98 jb++; |
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99 jb_lt_max= jb < jb_max; |
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100 } |
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101 } |
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102 r.cidx(i+1) = jx; |
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103 } |
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104 |
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105 a = r.maybe_compress (); |
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106 } |
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107 |
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108 return a; |
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109 } |
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110 |
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111 template <class T> |
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112 MSparse<T>& |
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113 operator -= (MSparse<T>& a, const MSparse<T>& b) |
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114 { |
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115 MSparse<T> r; |
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116 |
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117 octave_idx_type a_nr = a.rows (); |
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118 octave_idx_type a_nc = a.cols (); |
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119 |
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120 octave_idx_type b_nr = b.rows (); |
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121 octave_idx_type b_nc = b.cols (); |
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122 |
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123 if (a_nr != b_nr || a_nc != b_nc) |
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124 gripe_nonconformant ("operator -=" , a_nr, a_nc, b_nr, b_nc); |
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125 else |
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126 { |
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127 r = MSparse<T> (a_nr, a_nc, (a.nnz () + b.nnz ())); |
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128 |
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129 octave_idx_type jx = 0; |
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130 for (octave_idx_type i = 0 ; i < a_nc ; i++) |
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131 { |
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132 octave_idx_type ja = a.cidx(i); |
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133 octave_idx_type ja_max = a.cidx(i+1); |
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134 bool ja_lt_max= ja < ja_max; |
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135 |
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136 octave_idx_type jb = b.cidx(i); |
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137 octave_idx_type jb_max = b.cidx(i+1); |
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138 bool jb_lt_max = jb < jb_max; |
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139 |
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140 while (ja_lt_max || jb_lt_max ) |
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141 { |
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142 OCTAVE_QUIT; |
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143 if ((! jb_lt_max) || |
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144 (ja_lt_max && (a.ridx(ja) < b.ridx(jb)))) |
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145 { |
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146 r.ridx(jx) = a.ridx(ja); |
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147 r.data(jx) = a.data(ja) - 0.; |
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148 jx++; |
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149 ja++; |
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150 ja_lt_max= ja < ja_max; |
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151 } |
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152 else if (( !ja_lt_max ) || |
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153 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) ) |
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154 { |
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155 r.ridx(jx) = b.ridx(jb); |
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156 r.data(jx) = 0. - b.data(jb); |
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157 jx++; |
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158 jb++; |
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159 jb_lt_max= jb < jb_max; |
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160 } |
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161 else |
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162 { |
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163 if ((a.data(ja) - b.data(jb)) != 0.) |
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164 { |
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165 r.data(jx) = a.data(ja) - b.data(jb); |
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166 r.ridx(jx) = a.ridx(ja); |
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167 jx++; |
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168 } |
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169 ja++; |
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170 ja_lt_max= ja < ja_max; |
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171 jb++; |
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172 jb_lt_max= jb < jb_max; |
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173 } |
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174 } |
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175 r.cidx(i+1) = jx; |
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176 } |
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177 |
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178 a = r.maybe_compress (); |
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179 } |
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180 |
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181 return a; |
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182 } |
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183 |
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184 // Element by element MSparse by scalar ops. |
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185 |
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186 #define SPARSE_A2S_OP_1(OP) \ |
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187 template <class T> \ |
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188 MArray2<T> \ |
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189 operator OP (const MSparse<T>& a, const T& s) \ |
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190 { \ |
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191 octave_idx_type nr = a.rows (); \ |
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192 octave_idx_type nc = a.cols (); \ |
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193 \ |
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194 MArray2<T> r (nr, nc, (0.0 OP s)); \ |
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195 \ |
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196 for (octave_idx_type j = 0; j < nc; j++) \ |
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197 for (octave_idx_type i = a.cidx(j); i < a.cidx(j+1); i++) \ |
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198 r.elem (a.ridx (i), j) = a.data (i) OP s; \ |
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199 return r; \ |
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200 } |
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201 |
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202 #define SPARSE_A2S_OP_2(OP) \ |
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203 template <class T> \ |
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204 MSparse<T> \ |
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205 operator OP (const MSparse<T>& a, const T& s) \ |
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206 { \ |
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207 octave_idx_type nr = a.rows (); \ |
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208 octave_idx_type nc = a.cols (); \ |
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209 octave_idx_type nz = a.nnz (); \ |
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210 \ |
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211 MSparse<T> r (nr, nc, nz); \ |
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212 \ |
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213 for (octave_idx_type i = 0; i < nz; i++) \ |
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214 { \ |
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215 r.data(i) = a.data(i) OP s; \ |
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216 r.ridx(i) = a.ridx(i); \ |
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217 } \ |
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218 for (octave_idx_type i = 0; i < nc + 1; i++) \ |
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219 r.cidx(i) = a.cidx(i); \ |
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220 r.maybe_compress (true); \ |
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221 return r; \ |
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222 } |
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223 |
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224 |
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225 SPARSE_A2S_OP_1 (+) |
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226 SPARSE_A2S_OP_1 (-) |
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227 SPARSE_A2S_OP_2 (*) |
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228 SPARSE_A2S_OP_2 (/) |
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229 |
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230 // Element by element scalar by MSparse ops. |
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231 |
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232 #define SPARSE_SA2_OP_1(OP) \ |
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233 template <class T> \ |
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234 MArray2<T> \ |
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235 operator OP (const T& s, const MSparse<T>& a) \ |
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236 { \ |
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237 octave_idx_type nr = a.rows (); \ |
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238 octave_idx_type nc = a.cols (); \ |
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239 \ |
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240 MArray2<T> r (nr, nc, (s OP 0.0)); \ |
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241 \ |
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242 for (octave_idx_type j = 0; j < nc; j++) \ |
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243 for (octave_idx_type i = a.cidx(j); i < a.cidx(j+1); i++) \ |
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244 r.elem (a.ridx (i), j) = s OP a.data (i); \ |
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245 return r; \ |
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246 } |
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247 |
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248 #define SPARSE_SA2_OP_2(OP) \ |
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249 template <class T> \ |
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250 MSparse<T> \ |
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251 operator OP (const T& s, const MSparse<T>& a) \ |
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252 { \ |
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253 octave_idx_type nr = a.rows (); \ |
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254 octave_idx_type nc = a.cols (); \ |
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255 octave_idx_type nz = a.nnz (); \ |
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256 \ |
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257 MSparse<T> r (nr, nc, nz); \ |
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258 \ |
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259 for (octave_idx_type i = 0; i < nz; i++) \ |
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260 { \ |
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261 r.data(i) = s OP a.data(i); \ |
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262 r.ridx(i) = a.ridx(i); \ |
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263 } \ |
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264 for (octave_idx_type i = 0; i < nc + 1; i++) \ |
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265 r.cidx(i) = a.cidx(i); \ |
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266 r.maybe_compress (true); \ |
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267 return r; \ |
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268 } |
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269 |
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270 SPARSE_SA2_OP_1 (+) |
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271 SPARSE_SA2_OP_1 (-) |
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272 SPARSE_SA2_OP_2 (*) |
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273 SPARSE_SA2_OP_2 (/) |
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274 |
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275 // Element by element MSparse by MSparse ops. |
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276 |
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277 #define SPARSE_A2A2_OP(OP) \ |
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278 template <class T> \ |
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279 MSparse<T> \ |
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280 operator OP (const MSparse<T>& a, const MSparse<T>& b) \ |
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281 { \ |
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282 MSparse<T> r; \ |
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283 \ |
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284 octave_idx_type a_nr = a.rows (); \ |
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285 octave_idx_type a_nc = a.cols (); \ |
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286 \ |
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287 octave_idx_type b_nr = b.rows (); \ |
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288 octave_idx_type b_nc = b.cols (); \ |
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289 \ |
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290 if (a_nr != b_nr || a_nc != b_nc) \ |
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291 gripe_nonconformant ("operator " # OP, a_nr, a_nc, b_nr, b_nc); \ |
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292 else \ |
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293 { \ |
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294 r = MSparse<T> (a_nr, a_nc, (a.nnz () + b.nnz ())); \ |
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295 \ |
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296 octave_idx_type jx = 0; \ |
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297 r.cidx (0) = 0; \ |
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298 for (octave_idx_type i = 0 ; i < a_nc ; i++) \ |
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299 { \ |
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300 octave_idx_type ja = a.cidx(i); \ |
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301 octave_idx_type ja_max = a.cidx(i+1); \ |
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302 bool ja_lt_max= ja < ja_max; \ |
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303 \ |
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304 octave_idx_type jb = b.cidx(i); \ |
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305 octave_idx_type jb_max = b.cidx(i+1); \ |
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306 bool jb_lt_max = jb < jb_max; \ |
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307 \ |
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308 while (ja_lt_max || jb_lt_max ) \ |
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309 { \ |
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310 OCTAVE_QUIT; \ |
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311 if ((! jb_lt_max) || \ |
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312 (ja_lt_max && (a.ridx(ja) < b.ridx(jb)))) \ |
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313 { \ |
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314 r.ridx(jx) = a.ridx(ja); \ |
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315 r.data(jx) = a.data(ja) OP 0.; \ |
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316 jx++; \ |
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317 ja++; \ |
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318 ja_lt_max= ja < ja_max; \ |
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319 } \ |
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320 else if (( !ja_lt_max ) || \ |
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321 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) ) \ |
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322 { \ |
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323 r.ridx(jx) = b.ridx(jb); \ |
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324 r.data(jx) = 0. OP b.data(jb); \ |
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325 jx++; \ |
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326 jb++; \ |
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327 jb_lt_max= jb < jb_max; \ |
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328 } \ |
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329 else \ |
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330 { \ |
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331 if ((a.data(ja) OP b.data(jb)) != 0.) \ |
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332 { \ |
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333 r.data(jx) = a.data(ja) OP b.data(jb); \ |
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334 r.ridx(jx) = a.ridx(ja); \ |
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335 jx++; \ |
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336 } \ |
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337 ja++; \ |
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338 ja_lt_max= ja < ja_max; \ |
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339 jb++; \ |
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340 jb_lt_max= jb < jb_max; \ |
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341 } \ |
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342 } \ |
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343 r.cidx(i+1) = jx; \ |
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344 } \ |
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345 \ |
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346 r.maybe_compress (); \ |
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347 } \ |
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348 \ |
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349 return r; \ |
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350 } |
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351 |
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352 #define SPARSE_A2A2_FCN_1(FCN, OP) \ |
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353 template <class T> \ |
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354 MSparse<T> \ |
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355 FCN (const MSparse<T>& a, const MSparse<T>& b) \ |
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356 { \ |
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357 MSparse<T> r; \ |
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358 \ |
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359 octave_idx_type a_nr = a.rows (); \ |
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360 octave_idx_type a_nc = a.cols (); \ |
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361 \ |
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362 octave_idx_type b_nr = b.rows (); \ |
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363 octave_idx_type b_nc = b.cols (); \ |
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364 \ |
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365 if (a_nr != b_nr || a_nc != b_nc) \ |
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366 gripe_nonconformant (#FCN, a_nr, a_nc, b_nr, b_nc); \ |
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367 else \ |
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368 { \ |
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369 r = MSparse<T> (a_nr, a_nc, (a.nnz() > b.nnz() ? a.nnz() : b.nnz())); \ |
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370 \ |
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371 octave_idx_type jx = 0; \ |
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372 r.cidx (0) = 0; \ |
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373 for (octave_idx_type i = 0 ; i < a_nc ; i++) \ |
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374 { \ |
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375 octave_idx_type ja = a.cidx(i); \ |
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376 octave_idx_type ja_max = a.cidx(i+1); \ |
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377 bool ja_lt_max= ja < ja_max; \ |
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378 \ |
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379 octave_idx_type jb = b.cidx(i); \ |
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380 octave_idx_type jb_max = b.cidx(i+1); \ |
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381 bool jb_lt_max = jb < jb_max; \ |
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382 \ |
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383 while (ja_lt_max || jb_lt_max ) \ |
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384 { \ |
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385 OCTAVE_QUIT; \ |
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386 if ((! jb_lt_max) || \ |
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387 (ja_lt_max && (a.ridx(ja) < b.ridx(jb)))) \ |
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388 { \ |
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389 ja++; ja_lt_max= ja < ja_max; \ |
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390 } \ |
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391 else if (( !ja_lt_max ) || \ |
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392 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) ) \ |
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393 { \ |
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394 jb++; jb_lt_max= jb < jb_max; \ |
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395 } \ |
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396 else \ |
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397 { \ |
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398 if ((a.data(ja) OP b.data(jb)) != 0.) \ |
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399 { \ |
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400 r.data(jx) = a.data(ja) OP b.data(jb); \ |
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401 r.ridx(jx) = a.ridx(ja); \ |
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402 jx++; \ |
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403 } \ |
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404 ja++; ja_lt_max= ja < ja_max; \ |
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405 jb++; jb_lt_max= jb < jb_max; \ |
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406 } \ |
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407 } \ |
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408 r.cidx(i+1) = jx; \ |
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409 } \ |
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410 \ |
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411 r.maybe_compress (); \ |
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412 } \ |
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413 \ |
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414 return r; \ |
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415 } |
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416 |
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417 #define SPARSE_A2A2_FCN_2(FCN, OP) \ |
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418 template <class T> \ |
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419 MSparse<T> \ |
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420 FCN (const MSparse<T>& a, const MSparse<T>& b) \ |
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421 { \ |
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422 MSparse<T> r; \ |
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423 T Zero = T (); \ |
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424 \ |
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5275
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425 octave_idx_type a_nr = a.rows (); \ |
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426 octave_idx_type a_nc = a.cols (); \ |
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5164
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427 \ |
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5275
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428 octave_idx_type b_nr = b.rows (); \ |
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429 octave_idx_type b_nc = b.cols (); \ |
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5164
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430 \ |
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431 if (a_nr != b_nr || a_nc != b_nc) \ |
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432 gripe_nonconformant (#FCN, a_nr, a_nc, b_nr, b_nc); \ |
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433 else \ |
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434 { \ |
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435 r = MSparse<T>( a_nr, a_nc, (Zero OP Zero)); \ |
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436 \ |
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5275
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437 for (octave_idx_type i = 0 ; i < a_nc ; i++) \ |
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5164
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438 { \ |
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5275
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439 octave_idx_type ja = a.cidx(i); \ |
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440 octave_idx_type ja_max = a.cidx(i+1); \ |
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5164
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441 bool ja_lt_max= ja < ja_max; \ |
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442 \ |
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5275
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443 octave_idx_type jb = b.cidx(i); \ |
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444 octave_idx_type jb_max = b.cidx(i+1); \ |
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5164
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445 bool jb_lt_max = jb < jb_max; \ |
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446 \ |
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447 while (ja_lt_max || jb_lt_max ) \ |
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448 { \ |
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449 OCTAVE_QUIT; \ |
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450 if ((! jb_lt_max) || \ |
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451 (ja_lt_max && (a.ridx(ja) < b.ridx(jb)))) \ |
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452 { \ |
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453 r.elem (a.ridx(ja),i) = a.data(ja) OP Zero; \ |
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454 ja++; ja_lt_max= ja < ja_max; \ |
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455 } \ |
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456 else if (( !ja_lt_max ) || \ |
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457 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) ) \ |
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458 { \ |
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459 r.elem (b.ridx(jb),i) = Zero OP b.data(jb); \ |
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460 jb++; jb_lt_max= jb < jb_max; \ |
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461 } \ |
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462 else \ |
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463 { \ |
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464 r.elem (a.ridx(ja),i) = a.data(ja) OP b.data(jb); \ |
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465 ja++; ja_lt_max= ja < ja_max; \ |
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466 jb++; jb_lt_max= jb < jb_max; \ |
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467 } \ |
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|
468 } \ |
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|
469 } \ |
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470 \ |
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471 r.maybe_compress (true); \ |
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472 } \ |
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473 \ |
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474 return r; \ |
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|
475 } |
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476 |
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|
477 SPARSE_A2A2_OP (+) |
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478 SPARSE_A2A2_OP (-) |
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479 SPARSE_A2A2_FCN_1 (product, *) |
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480 SPARSE_A2A2_FCN_2 (quotient, /) |
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481 |
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|
482 // Unary MSparse ops. |
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483 |
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484 template <class T> |
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|
485 MSparse<T> |
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|
486 operator + (const MSparse<T>& a) |
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|
487 { |
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|
488 return a; |
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|
489 } |
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|
490 |
|
|
491 template <class T> |
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|
492 MSparse<T> |
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|
493 operator - (const MSparse<T>& a) |
|
|
494 { |
|
|
495 MSparse<T> retval (a); |
|
5275
|
496 octave_idx_type nz = a.nnz (); |
|
|
497 for (octave_idx_type i = 0; i < nz; i++) |
|
5164
|
498 retval.data(i) = - retval.data(i); |
|
|
499 return retval; |
|
|
500 } |
|
|
501 |
|
|
502 /* |
|
|
503 ;;; Local Variables: *** |
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|
504 ;;; mode: C++ *** |
|
|
505 ;;; End: *** |
|
|
506 */ |
