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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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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include "MArray.h" |
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29 #include "Array-util.h" |
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30 #include "lo-error.h" |
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31 |
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32 #include "MArray-defs.h" |
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33 |
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34 // One dimensional array with math ops. |
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35 |
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36 // Element by element MArray by scalar ops. |
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37 |
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38 template <class T> |
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39 MArray<T>& |
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40 operator += (MArray<T>& a, const T& s) |
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41 { |
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42 DO_VS_OP2 (T, a, +=, s) |
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43 return a; |
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44 } |
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45 |
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46 template <class T> |
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47 MArray<T>& |
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48 operator -= (MArray<T>& a, const T& s) |
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49 { |
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50 DO_VS_OP2 (T, a, -=, s) |
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51 return a; |
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52 } |
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53 |
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54 // Element by element MArray by MArray ops. |
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55 |
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56 template <class T> |
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57 MArray<T>& |
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58 operator += (MArray<T>& a, const MArray<T>& b) |
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59 { |
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60 octave_idx_type l = a.length (); |
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61 if (l > 0) |
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62 { |
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63 octave_idx_type bl = b.length (); |
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64 if (l != bl) |
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65 gripe_nonconformant ("operator +=", l, bl); |
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66 else |
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67 DO_VV_OP2 (T, a, +=, b); |
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68 } |
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69 return a; |
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70 } |
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71 |
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72 template <class T> |
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73 MArray<T>& |
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74 operator -= (MArray<T>& a, const MArray<T>& b) |
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75 { |
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76 octave_idx_type l = a.length (); |
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77 if (l > 0) |
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78 { |
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79 octave_idx_type bl = b.length (); |
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80 if (l != bl) |
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81 gripe_nonconformant ("operator -=", l, bl); |
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82 else |
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83 DO_VV_OP2 (T, a, -=, b); |
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84 } |
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85 return a; |
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86 } |
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87 |
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88 // Element by element MArray by scalar ops. |
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89 |
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90 #define MARRAY_AS_OP(OP) \ |
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91 template <class T> \ |
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92 MArray<T> \ |
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93 operator OP (const MArray<T>& a, const T& s) \ |
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94 { \ |
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95 MArray<T> result (a.length ()); \ |
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96 T *r = result.fortran_vec (); \ |
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97 octave_idx_type l = a.length (); \ |
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98 const T *v = a.data (); \ |
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99 DO_VS_OP (r, l, v, OP, s); \ |
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100 return result; \ |
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101 } |
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102 |
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103 MARRAY_AS_OP (+) |
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104 MARRAY_AS_OP (-) |
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105 MARRAY_AS_OP (*) |
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106 MARRAY_AS_OP (/) |
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107 |
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108 // Element by element scalar by MArray ops. |
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109 |
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110 #define MARRAY_SA_OP(OP) \ |
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111 template <class T> \ |
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112 MArray<T> \ |
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113 operator OP (const T& s, const MArray<T>& a) \ |
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114 { \ |
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115 MArray<T> result (a.length ()); \ |
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116 T *r = result.fortran_vec (); \ |
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117 octave_idx_type l = a.length (); \ |
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118 const T *v = a.data (); \ |
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119 DO_SV_OP (r, l, s, OP, v); \ |
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120 return result; \ |
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121 } |
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122 |
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123 MARRAY_SA_OP(+) |
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124 MARRAY_SA_OP(-) |
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125 MARRAY_SA_OP(*) |
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126 MARRAY_SA_OP(/) |
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127 |
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128 // Element by element MArray by MArray ops. |
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129 |
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130 #define MARRAY_AA_OP(FCN, OP) \ |
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131 template <class T> \ |
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132 MArray<T> \ |
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133 FCN (const MArray<T>& a, const MArray<T>& b) \ |
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134 { \ |
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135 octave_idx_type l = a.length (); \ |
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136 octave_idx_type bl = b.length (); \ |
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137 if (l != bl) \ |
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138 { \ |
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139 gripe_nonconformant (#FCN, l, bl); \ |
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140 return MArray<T> (); \ |
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141 } \ |
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142 if (l == 0) \ |
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143 return MArray<T> (); \ |
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144 MArray<T> result (l); \ |
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145 T *r = result.fortran_vec (); \ |
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146 const T *x = a.data (); \ |
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147 const T *y = b.data (); \ |
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148 DO_VV_OP (r, l, x, OP, y); \ |
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149 return result; \ |
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150 } |
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151 |
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152 MARRAY_AA_OP (operator +, +) |
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153 MARRAY_AA_OP (operator -, -) |
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154 MARRAY_AA_OP (product, *) |
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155 MARRAY_AA_OP (quotient, /) |
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156 |
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157 // Unary MArray ops. |
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158 |
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159 template <class T> |
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160 MArray<T> |
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161 operator + (const MArray<T>& a) |
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162 { |
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163 return a; |
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164 } |
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165 |
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166 template <class T> |
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167 MArray<T> |
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168 operator - (const MArray<T>& a) |
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169 { |
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170 octave_idx_type l = a.length (); |
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171 MArray<T> result (l); |
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172 T *r = result.fortran_vec (); |
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173 const T *x = a.data (); |
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174 NEG_V (r, l, x); |
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175 return result; |
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176 } |
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177 |
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178 /* |
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179 ;;; Local Variables: *** |
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180 ;;; mode: C++ *** |
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181 ;;; End: *** |
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182 */ |
