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1 /* |
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2 |
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3 Copyright (C) 1993, 1995, 1996, 1997, 2000, 2002, 2003, 2004, 2005, |
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4 2007 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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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 template <class T> |
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37 double |
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38 MArray<T>::norm (double) const |
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39 { |
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40 (*current_liboctave_error_handler) |
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41 ("norm: only implemented for double and complex values"); |
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42 |
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43 return 0; |
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44 } |
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45 |
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46 // Element by element MArray by scalar ops. |
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47 |
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48 template <class T> |
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49 MArray<T>& |
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50 operator += (MArray<T>& a, const T& s) |
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51 { |
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52 DO_VS_OP2 (T, a, +=, s) |
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53 return a; |
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54 } |
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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 T& s) |
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59 { |
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60 DO_VS_OP2 (T, a, -=, s) |
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61 return a; |
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62 } |
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63 |
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64 // Element by element MArray by MArray ops. |
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65 |
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66 template <class T> |
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67 MArray<T>& |
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68 operator += (MArray<T>& a, const MArray<T>& b) |
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69 { |
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70 octave_idx_type l = a.length (); |
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71 if (l > 0) |
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72 { |
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73 octave_idx_type bl = b.length (); |
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74 if (l != bl) |
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75 gripe_nonconformant ("operator +=", l, bl); |
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76 else |
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77 DO_VV_OP2 (T, a, +=, b); |
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78 } |
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79 return a; |
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80 } |
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81 |
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82 template <class T> |
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83 MArray<T>& |
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84 operator -= (MArray<T>& a, const MArray<T>& b) |
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85 { |
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86 octave_idx_type l = a.length (); |
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87 if (l > 0) |
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88 { |
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89 octave_idx_type bl = b.length (); |
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90 if (l != bl) |
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91 gripe_nonconformant ("operator -=", l, bl); |
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92 else |
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93 DO_VV_OP2 (T, a, -=, b); |
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94 } |
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95 return a; |
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96 } |
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97 |
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98 // Element by element MArray by scalar ops. |
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99 |
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100 #define MARRAY_AS_OP(OP) \ |
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101 template <class T> \ |
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102 MArray<T> \ |
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103 operator OP (const MArray<T>& a, const T& s) \ |
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104 { \ |
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105 MArray<T> result (a.length ()); \ |
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106 T *r = result.fortran_vec (); \ |
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107 octave_idx_type l = a.length (); \ |
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108 const T *v = a.data (); \ |
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109 DO_VS_OP (r, l, v, OP, s); \ |
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110 return result; \ |
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111 } |
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112 |
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113 MARRAY_AS_OP (+) |
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114 MARRAY_AS_OP (-) |
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115 MARRAY_AS_OP (*) |
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116 MARRAY_AS_OP (/) |
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117 |
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118 // Element by element scalar by MArray ops. |
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119 |
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120 #define MARRAY_SA_OP(OP) \ |
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121 template <class T> \ |
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122 MArray<T> \ |
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123 operator OP (const T& s, const MArray<T>& a) \ |
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124 { \ |
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125 MArray<T> result (a.length ()); \ |
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126 T *r = result.fortran_vec (); \ |
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127 octave_idx_type l = a.length (); \ |
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128 const T *v = a.data (); \ |
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129 DO_SV_OP (r, l, s, OP, v); \ |
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130 return result; \ |
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131 } |
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132 |
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133 MARRAY_SA_OP(+) |
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134 MARRAY_SA_OP(-) |
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135 MARRAY_SA_OP(*) |
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136 MARRAY_SA_OP(/) |
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137 |
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138 // Element by element MArray by MArray ops. |
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139 |
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140 #define MARRAY_AA_OP(FCN, OP) \ |
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141 template <class T> \ |
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142 MArray<T> \ |
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143 FCN (const MArray<T>& a, const MArray<T>& b) \ |
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144 { \ |
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145 octave_idx_type l = a.length (); \ |
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146 octave_idx_type bl = b.length (); \ |
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147 if (l != bl) \ |
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148 { \ |
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149 gripe_nonconformant (#FCN, l, bl); \ |
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150 return MArray<T> (); \ |
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151 } \ |
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152 if (l == 0) \ |
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153 return MArray<T> (); \ |
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154 MArray<T> result (l); \ |
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155 T *r = result.fortran_vec (); \ |
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156 const T *x = a.data (); \ |
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157 const T *y = b.data (); \ |
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158 DO_VV_OP (r, l, x, OP, y); \ |
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159 return result; \ |
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160 } |
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161 |
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162 MARRAY_AA_OP (operator +, +) |
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163 MARRAY_AA_OP (operator -, -) |
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164 MARRAY_AA_OP (product, *) |
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165 MARRAY_AA_OP (quotient, /) |
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166 |
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167 // Unary MArray ops. |
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168 |
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169 template <class T> |
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170 MArray<T> |
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171 operator + (const MArray<T>& a) |
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172 { |
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173 return a; |
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174 } |
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175 |
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176 template <class T> |
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177 MArray<T> |
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178 operator - (const MArray<T>& a) |
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179 { |
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180 octave_idx_type l = a.length (); |
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181 MArray<T> result (l); |
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182 T *r = result.fortran_vec (); |
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183 const T *x = a.data (); |
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184 NEG_V (r, l, x); |
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185 return result; |
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186 } |
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187 |
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188 /* |
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189 ;;; Local Variables: *** |
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190 ;;; mode: C++ *** |
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191 ;;; End: *** |
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192 */ |
