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1988
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1 /* |
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2 |
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3 Copyright (C) 1996 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, 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 "MDiagArray2.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 diagonal array with math ops. |
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37 |
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38 // Element by element MDiagArray2 by MDiagArray2 ops. |
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39 |
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40 template <class T> |
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41 MDiagArray2<T>& |
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42 operator += (MDiagArray2<T>& a, const MDiagArray2<T>& b) |
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43 { |
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44 int r = a.rows (); |
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45 int c = a.cols (); |
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46 if (r != b.rows () || c != b.cols ()) |
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47 { |
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48 (*current_liboctave_error_handler) |
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49 ("nonconformant array operator += attempted"); |
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50 static MDiagArray2<T> foo; |
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51 return foo; |
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52 } |
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53 else |
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54 { |
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55 int l = a.length (); |
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56 DO_VV_OP2 (+=); |
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57 } |
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58 return a; |
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59 } |
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60 |
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61 template <class T> |
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62 MDiagArray2<T>& |
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63 operator -= (MDiagArray2<T>& a, const MDiagArray2<T>& b) |
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64 { |
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65 int r = a.rows (); |
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66 int c = a.cols (); |
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67 if (r != b.rows () || c != b.cols ()) |
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68 { |
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69 (*current_liboctave_error_handler) |
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70 ("nonconformant array operator -= attempted"); |
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71 static MDiagArray2<T> foo; |
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72 return foo; |
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73 } |
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74 else |
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75 { |
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76 int l = a.length (); |
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77 DO_VV_OP2 (-=); |
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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 // Element by element MDiagArray2 by scalar ops. |
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83 |
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84 #define MARRAY_DAS_OP(OP) \ |
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85 template <class T> \ |
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86 MDiagArray2<T> \ |
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87 operator OP (const MDiagArray2<T>& a, const T& s) \ |
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88 { \ |
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89 DO_VS_OP (OP); \ |
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90 return MDiagArray2<T> (result, a.rows (), a.cols ()); \ |
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91 } |
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92 |
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93 MARRAY_DAS_OP (*) |
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94 MARRAY_DAS_OP (/) |
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95 |
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96 // Element by element scalar by MDiagArray2 ops. |
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97 |
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98 template <class T> |
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99 MDiagArray2<T> |
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100 operator * (const T& s, const MDiagArray2<T>& a) |
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101 { |
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102 DO_SV_OP (*); |
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103 return MDiagArray2<T> (result, a.rows (), a.cols ()); |
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104 } |
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105 |
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106 // Element by element MDiagArray2 by MDiagArray2 ops. |
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107 |
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108 #define MARRAY_DADA_OP(FCN, OP, OP_STR) \ |
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109 template <class T> \ |
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110 MDiagArray2<T> \ |
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111 FCN (const MDiagArray2<T>& a, const MDiagArray2<T>& b) \ |
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112 { \ |
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113 int r = a.rows (); \ |
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114 int c = a.cols (); \ |
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115 if (r != b.rows () || c != b.cols ()) \ |
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116 { \ |
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117 (*current_liboctave_error_handler) \ |
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118 ("nonconformant diagonal array " OP_STR " attempted"); \ |
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119 return MDiagArray2<T> (); \ |
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120 } \ |
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121 if (c == 0 || r == 0) \ |
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122 return MDiagArray2<T> (); \ |
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123 int l = a.length (); \ |
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124 DO_VV_OP (OP); \ |
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125 return MDiagArray2<T> (result, r, c); \ |
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126 } |
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127 |
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128 MARRAY_DADA_OP (operator +, +, "addition") |
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129 MARRAY_DADA_OP (operator -, -, "subtraction") |
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130 MARRAY_DADA_OP (product, *, "product") |
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131 |
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132 // Unary MDiagArray2 ops. |
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133 |
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134 template <class T> |
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135 MDiagArray2<T> |
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136 operator - (const MDiagArray2<T>& a) |
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137 { |
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138 NEG_V; |
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139 return MDiagArray2<T> (result, a.rows (), a.cols ()); |
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140 } |
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141 |
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142 /* |
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143 ;;; Local Variables: *** |
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144 ;;; mode: C++ *** |
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145 ;;; End: *** |
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146 */ |
