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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 2000, 2002, 2003, 2004, 2005, 2007 |
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4 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 "MDiagArray2.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 // Some functions return a reference to this object after a failure. |
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35 template <class T> MDiagArray2<T> MDiagArray2<T>::nil_array; |
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36 |
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37 // Two dimensional diagonal array with math ops. |
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38 |
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39 // Element by element MDiagArray2 by MDiagArray2 ops. |
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40 |
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41 template <class T> |
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42 MDiagArray2<T>& |
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43 operator += (MDiagArray2<T>& a, const MDiagArray2<T>& b) |
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44 { |
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45 octave_idx_type r = a.rows (); |
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46 octave_idx_type c = 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 (r != b_nr || c != b_nc) |
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52 { |
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53 gripe_nonconformant ("operator +=", r, c, b_nr, b_nc); |
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54 return MDiagArray2<T>::nil_array; |
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55 } |
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56 else |
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57 { |
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58 octave_idx_type l = a.length (); |
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59 DO_VV_OP2 (T, a, +=, b); |
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60 } |
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61 return a; |
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62 } |
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63 |
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64 template <class T> |
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65 MDiagArray2<T>& |
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66 operator -= (MDiagArray2<T>& a, const MDiagArray2<T>& b) |
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67 { |
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68 octave_idx_type r = a.rows (); |
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69 octave_idx_type c = a.cols (); |
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70 |
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71 octave_idx_type b_nr = b.rows (); |
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72 octave_idx_type b_nc = b.cols (); |
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73 |
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74 if (r != b_nr || c != b_nc) |
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75 { |
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76 gripe_nonconformant ("operator -=", r, c, b_nr, b_nc); |
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77 return MDiagArray2<T>::nil_array; |
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78 } |
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79 else |
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80 { |
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81 octave_idx_type l = a.length (); |
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82 DO_VV_OP2 (T, a, -=, b); |
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83 } |
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84 return a; |
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85 } |
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86 |
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87 // Element by element MDiagArray2 by scalar ops. |
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88 |
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89 #define MARRAY_DAS_OP(OP) \ |
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90 template <class T> \ |
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91 MDiagArray2<T> \ |
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92 operator OP (const MDiagArray2<T>& a, const T& s) \ |
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93 { \ |
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94 MDiagArray2<T> result (a.rows (), a.cols ()); \ |
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95 T *r = result.fortran_vec (); \ |
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96 octave_idx_type l = a.length (); \ |
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97 const T *v = a.data (); \ |
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98 DO_VS_OP (r, l, v, OP, s); \ |
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99 return result; \ |
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100 } |
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101 |
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102 MARRAY_DAS_OP (*) |
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103 MARRAY_DAS_OP (/) |
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104 |
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105 // Element by element scalar by MDiagArray2 ops. |
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106 |
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107 template <class T> |
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108 MDiagArray2<T> |
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109 operator * (const T& s, const MDiagArray2<T>& a) |
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110 { |
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111 MDiagArray2<T> result (a.rows (), a.cols ()); \ |
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112 T *r = result.fortran_vec (); \ |
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113 octave_idx_type l = a.length (); \ |
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114 const T *v = a.data (); \ |
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115 DO_SV_OP (r, l, s, *, v); \ |
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116 return result; \ |
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117 } |
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118 |
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119 // Element by element MDiagArray2 by MDiagArray2 ops. |
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120 |
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121 #define MARRAY_DADA_OP(FCN, OP) \ |
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122 template <class T> \ |
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123 MDiagArray2<T> \ |
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124 FCN (const MDiagArray2<T>& a, const MDiagArray2<T>& b) \ |
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125 { \ |
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126 octave_idx_type a_nr = a.rows (); \ |
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127 octave_idx_type a_nc = a.cols (); \ |
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128 octave_idx_type b_nr = b.rows (); \ |
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129 octave_idx_type b_nc = b.cols (); \ |
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130 if (a_nr != b_nr || a_nc != b_nc) \ |
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131 { \ |
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132 gripe_nonconformant (#FCN, a_nr, a_nc, b_nr, b_nc); \ |
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133 return MDiagArray2<T> (); \ |
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134 } \ |
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135 if (a_nc == 0 || a_nr == 0) \ |
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136 return MDiagArray2<T> (); \ |
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137 octave_idx_type l = a.length (); \ |
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138 MDiagArray2<T> result (a_nr, a_nc); \ |
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139 T *r = result.fortran_vec (); \ |
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140 const T *x = a.data (); \ |
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141 const T *y = b.data (); \ |
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142 DO_VV_OP (r, l, x, OP, y); \ |
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143 return result; \ |
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144 } |
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145 |
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146 MARRAY_DADA_OP (operator +, +) |
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147 MARRAY_DADA_OP (operator -, -) |
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148 MARRAY_DADA_OP (product, *) |
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149 |
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150 // Unary MDiagArray2 ops. |
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151 |
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152 template <class T> |
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153 MDiagArray2<T> |
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154 operator + (const MDiagArray2<T>& a) |
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155 { |
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156 return a; |
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157 } |
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158 |
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159 template <class T> |
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160 MDiagArray2<T> |
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161 operator - (const MDiagArray2<T>& a) |
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162 { |
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163 octave_idx_type l = a.length (); |
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164 MDiagArray2<T> result (a.rows (), a.cols ()); |
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165 T *r = result.fortran_vec (); |
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166 const T *x = a.data (); |
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167 NEG_V (r, l, x); |
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168 return result; |
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169 } |
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170 |
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171 /* |
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172 ;;; Local Variables: *** |
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173 ;;; mode: C++ *** |
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174 ;;; End: *** |
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175 */ |
