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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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1988
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include "MArray2.h" |
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32 #include "lo-error.h" |
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33 |
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34 #include "MArray-defs.h" |
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35 |
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36 // Two dimensional array with math ops. |
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37 |
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38 // Element by element MArray2 by scalar ops. |
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39 |
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40 template <class T> |
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41 MArray2<T>& |
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42 operator += (MArray2<T>& a, const T& s) |
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43 { |
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44 DO_VS_OP2 (+=) |
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45 return a; |
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46 } |
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47 |
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48 template <class T> |
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49 MArray2<T>& |
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50 operator -= (MArray2<T>& a, const T& s) |
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51 { |
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52 DO_VS_OP2 (-=) |
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53 return a; |
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54 } |
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55 |
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56 // Element by element MArray2 by MArray2 ops. |
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57 |
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58 template <class T> |
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59 MArray2<T>& |
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60 operator += (MArray2<T>& a, const MArray2<T>& b) |
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61 { |
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62 int r = a.rows (); |
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63 int c = a.cols (); |
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64 int br = b.rows (); |
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65 int bc = b.cols (); |
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66 if (r != br || c != bc) |
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67 gripe_nonconformant ("operator +=", r, c, br, bc); |
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68 else |
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69 { |
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70 if (r > 0 && c > 0) |
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71 { |
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72 int l = a.length (); |
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73 DO_VV_OP2 (+=); |
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74 } |
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75 } |
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76 return a; |
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77 } |
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78 |
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79 template <class T> |
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80 MArray2<T>& |
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81 operator -= (MArray2<T>& a, const MArray2<T>& b) |
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82 { |
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83 int r = a.rows (); |
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84 int c = a.cols (); |
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85 int br = b.rows (); |
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86 int bc = b.cols (); |
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87 if (r != br || c != bc) |
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88 gripe_nonconformant ("operator -=", r, c, br, bc); |
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89 else |
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90 { |
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91 if (r > 0 && c > 0) |
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92 { |
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93 int l = a.length (); |
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94 DO_VV_OP2 (-=); |
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95 } |
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96 } |
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97 return a; |
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98 } |
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99 |
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100 // Element by element MArray2 by scalar ops. |
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101 |
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102 #define MARRAY_A2S_OP(OP) \ |
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103 template <class T> \ |
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104 MArray2<T> \ |
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105 operator OP (const MArray2<T>& a, const T& s) \ |
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106 { \ |
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107 MArray2<T> result (a.rows (), a.cols ()); \ |
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108 T *r = result.fortran_vec (); \ |
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109 int l = a.length (); \ |
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110 const T *v = a.data (); \ |
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111 DO_VS_OP (r, l, v, OP, s); \ |
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112 return result; \ |
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113 } |
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114 |
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115 MARRAY_A2S_OP (+) |
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116 MARRAY_A2S_OP (-) |
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117 MARRAY_A2S_OP (*) |
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118 MARRAY_A2S_OP (/) |
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119 |
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120 // Element by element scalar by MArray2 ops. |
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121 |
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122 #define MARRAY_SA2_OP(OP) \ |
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123 template <class T> \ |
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124 MArray2<T> \ |
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125 operator OP (const T& s, const MArray2<T>& a) \ |
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126 { \ |
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127 MArray2<T> result (a.rows (), a.cols ()); \ |
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128 T *r = result.fortran_vec (); \ |
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129 int l = a.length (); \ |
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130 const T *v = a.data (); \ |
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131 DO_SV_OP (r, l, s, OP, v); \ |
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132 return result; \ |
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133 } |
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134 |
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135 MARRAY_SA2_OP (+) |
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136 MARRAY_SA2_OP (-) |
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137 MARRAY_SA2_OP (*) |
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138 MARRAY_SA2_OP (/) |
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139 |
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140 // Element by element MArray2 by MArray2 ops. |
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141 |
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142 #define MARRAY_A2A2_OP(FCN, OP) \ |
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143 template <class T> \ |
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144 MArray2<T> \ |
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145 FCN (const MArray2<T>& a, const MArray2<T>& b) \ |
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146 { \ |
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147 int a_nr = a.rows (); \ |
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148 int a_nc = a.cols (); \ |
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149 int b_nr = b.rows (); \ |
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150 int b_nc = b.cols (); \ |
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151 if (a_nr != b_nr || a_nc != b_nc) \ |
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152 { \ |
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153 gripe_nonconformant (#FCN, a_nr, a_nc, b_nr, b_nc); \ |
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154 return MArray2<T> (); \ |
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155 } \ |
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156 if (a_nr == 0 || a_nc == 0) \ |
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157 return MArray2<T> (a_nr, a_nc); \ |
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158 int l = a.length (); \ |
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159 MArray2<T> result (a_nr, a_nc); \ |
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160 T *r = result.fortran_vec (); \ |
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161 const T *x = a.data (); \ |
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162 const T *y = b.data (); \ |
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163 DO_VV_OP (r, l, x, OP, y); \ |
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164 return result; \ |
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165 } |
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166 |
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167 MARRAY_A2A2_OP (operator +, +) |
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168 MARRAY_A2A2_OP (operator -, -) |
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169 MARRAY_A2A2_OP (product, *) |
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170 MARRAY_A2A2_OP (quotient, /) |
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171 |
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172 // Unary MArray2 ops. |
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173 |
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174 template <class T> |
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175 MArray2<T> |
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176 operator + (const MArray2<T>& a) |
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177 { |
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178 return a; |
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179 } |
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180 |
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181 template <class T> |
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182 MArray2<T> |
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183 operator - (const MArray2<T>& a) |
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184 { |
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185 int l = a.length (); |
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186 MArray2<T> result (a.rows (), a.cols ()); |
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187 T *r = result.fortran_vec (); |
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188 const T *x = a.data (); |
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189 NEG_V (r, l, x); |
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190 return result; |
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191 } |
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192 |
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193 /* |
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194 ;;; Local Variables: *** |
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195 ;;; mode: C++ *** |
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196 ;;; End: *** |
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197 */ |
