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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 "lo-ieee.h" |
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32 #include "mx-base.h" |
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33 |
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34 #include "gripes.h" |
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35 #include "oct-obj.h" |
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36 #include "ops.h" |
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37 #include "ov-complex.h" |
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38 #include "ov-cx-mat.h" |
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39 #include "ov-re-mat.h" |
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40 #include "ov-scalar.h" |
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41 #include "pr-output.h" |
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42 |
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43 int octave_complex_matrix::t_id = -1; |
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44 |
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45 const string octave_complex_matrix::t_name ("complex matrix"); |
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46 |
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47 octave_complex_matrix::octave_complex_matrix (const ComplexRowVector& v, |
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48 int pcv) |
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49 : octave_base_value (), |
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50 matrix ((pcv < 0 && Vprefer_column_vectors) || pcv |
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51 ? ComplexMatrix (v.transpose ()) : ComplexMatrix (v)) { } |
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52 |
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53 octave_complex_matrix::octave_complex_matrix (const ComplexColumnVector& v, |
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54 int pcv) |
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55 : octave_base_value (), |
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56 matrix ((pcv < 0 && Vprefer_column_vectors) || pcv |
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57 ? ComplexMatrix (v) : ComplexMatrix (v.transpose ())) { } |
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58 |
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59 octave_value * |
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60 octave_complex_matrix::try_narrowing_conversion (void) |
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61 { |
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62 octave_value *retval = 0; |
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63 |
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64 int nr = matrix.rows (); |
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65 int nc = matrix.cols (); |
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66 |
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67 if (nr == 1 && nc == 1) |
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68 { |
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69 Complex c = matrix (0, 0); |
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70 |
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71 if (imag (c) == 0.0) |
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72 retval = new octave_scalar (::real (c)); |
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73 else |
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74 retval = new octave_complex (c); |
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75 } |
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76 else if (nr == 0 && nc == 0) |
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77 retval = new octave_matrix (Matrix ()); |
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78 else if (matrix.all_elements_are_real ()) |
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79 retval = new octave_matrix (::real (matrix)); |
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80 |
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81 return retval; |
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82 } |
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83 |
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84 octave_value |
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85 octave_complex_matrix::index (const octave_value_list& idx) const |
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86 { |
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87 octave_value retval; |
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88 |
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89 int len = idx.length (); |
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90 |
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91 switch (len) |
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92 { |
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93 case 2: |
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94 { |
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95 idx_vector i = idx (0).index_vector (); |
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96 idx_vector j = idx (1).index_vector (); |
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97 |
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98 retval = ComplexMatrix (matrix.index (i, j)); |
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99 } |
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100 break; |
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101 |
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102 case 1: |
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103 { |
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104 idx_vector i = idx (0).index_vector (); |
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105 |
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106 retval = ComplexMatrix (matrix.index (i)); |
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107 } |
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108 break; |
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109 |
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110 default: |
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111 error ("invalid number of indices (%d) for complex matrix value", len); |
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112 break; |
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113 } |
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114 |
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115 return retval; |
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116 } |
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117 |
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118 extern void assign (Array2<Complex>&, const Array2<Complex>&); |
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119 |
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120 void |
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121 octave_complex_matrix::assign (const octave_value_list& idx, |
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122 const ComplexMatrix& rhs) |
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123 { |
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124 int len = idx.length (); |
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125 |
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126 switch (len) |
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127 { |
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128 case 2: |
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129 { |
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130 idx_vector i = idx (0).index_vector (); |
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131 idx_vector j = idx (1).index_vector (); |
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132 |
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133 matrix.set_index (i); |
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134 matrix.set_index (j); |
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135 |
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136 ::assign (matrix, rhs); |
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137 } |
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138 break; |
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139 |
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140 case 1: |
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141 { |
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142 idx_vector i = idx (0).index_vector (); |
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143 |
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144 matrix.set_index (i); |
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145 |
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146 ::assign (matrix, rhs); |
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147 } |
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148 break; |
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149 |
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150 default: |
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151 error ("invalid number of indices (%d) for indexed matrix assignment", |
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152 len); |
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153 break; |
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154 } |
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155 } |
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156 |
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157 extern void assign (Array2<Complex>&, const Array2<double>&); |
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158 |
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159 void |
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160 octave_complex_matrix::assign (const octave_value_list& idx, |
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161 const Matrix& rhs) |
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162 { |
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163 int len = idx.length (); |
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164 |
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165 switch (len) |
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166 { |
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167 case 2: |
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168 { |
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169 idx_vector i = idx (0).index_vector (); |
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170 idx_vector j = idx (1).index_vector (); |
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171 |
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172 matrix.set_index (i); |
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173 matrix.set_index (j); |
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174 |
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175 ::assign (matrix, rhs); |
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176 } |
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177 break; |
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178 |
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179 case 1: |
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180 { |
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181 idx_vector i = idx (0).index_vector (); |
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182 |
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183 matrix.set_index (i); |
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184 |
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185 ::assign (matrix, rhs); |
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186 } |
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187 break; |
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188 |
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189 default: |
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190 error ("invalid number of indices (%d) for indexed matrix assignment", |
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191 len); |
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192 break; |
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193 } |
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194 } |
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195 |
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196 bool |
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197 octave_complex_matrix::valid_as_scalar_index (void) const |
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198 { |
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199 // XXX FIXME XXX |
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200 return false; |
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201 } |
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202 |
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203 bool |
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204 octave_complex_matrix::valid_as_zero_index (void) const |
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205 { |
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206 // XXX FIXME XXX |
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207 return false; |
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208 } |
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209 |
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210 bool |
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211 octave_complex_matrix::is_true (void) const |
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212 { |
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213 bool retval = false; |
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214 |
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215 if (rows () == 0 || columns () == 0) |
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216 { |
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217 int flag = Vpropagate_empty_matrices; |
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218 |
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219 if (flag < 0) |
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220 warning ("empty matrix used in conditional expression"); |
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221 else if (flag == 0) |
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222 error ("empty matrix used in conditional expression"); |
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223 } |
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224 else |
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225 { |
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226 Matrix m = (matrix.all ()) . all (); |
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227 |
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228 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); |
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229 } |
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230 |
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231 return retval; |
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232 } |
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233 |
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234 double |
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235 octave_complex_matrix::double_value (bool force_conversion) const |
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236 { |
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237 double retval = octave_NaN; |
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238 |
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239 int flag = force_conversion; |
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240 |
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241 if (! flag) |
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242 flag = Vok_to_lose_imaginary_part; |
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243 |
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244 if (flag < 0) |
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245 gripe_implicit_conversion ("complex matrix", "real scalar"); |
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246 |
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247 if (flag) |
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248 { |
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249 if ((rows () == 1 && columns () == 1) |
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250 || (Vdo_fortran_indexing && rows () > 0 && columns () > 0)) |
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251 retval = ::real (matrix (0, 0)); |
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252 else |
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253 gripe_invalid_conversion ("complex matrix", "real scalar"); |
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254 } |
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255 else |
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256 gripe_invalid_conversion ("complex matrix", "real scalar"); |
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257 |
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258 return retval; |
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259 } |
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260 |
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261 Matrix |
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262 octave_complex_matrix::matrix_value (bool force_conversion) const |
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263 { |
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264 Matrix retval; |
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265 |
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266 int flag = force_conversion; |
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267 |
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268 if (! flag) |
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269 flag = Vok_to_lose_imaginary_part; |
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270 |
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271 if (flag < 0) |
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272 gripe_implicit_conversion ("complex matrix", "real matrix"); |
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273 |
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274 if (flag) |
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275 retval = ::real (matrix); |
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276 else |
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277 gripe_invalid_conversion ("complex matrix", "real matrix"); |
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278 |
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279 return retval; |
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280 } |
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281 |
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282 Complex |
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283 octave_complex_matrix::complex_value (bool) const |
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284 { |
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285 Complex retval (octave_NaN, octave_NaN); |
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286 |
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287 if ((rows () == 1 && columns () == 1) |
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288 || (Vdo_fortran_indexing && rows () > 0 && columns () > 0)) |
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289 retval = matrix (0, 0); |
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290 else |
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291 gripe_invalid_conversion ("complex matrix", "complex scalar"); |
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292 |
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293 return retval; |
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294 } |
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295 |
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296 ComplexMatrix |
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297 octave_complex_matrix::complex_matrix_value (bool) const |
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298 { |
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299 return matrix; |
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300 } |
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301 |
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302 void |
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303 octave_complex_matrix::print (ostream& os) |
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304 { |
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305 octave_print_internal (os, matrix, false, struct_indent); |
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306 } |
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307 |
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308 /* |
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309 ;;; Local Variables: *** |
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310 ;;; mode: C++ *** |
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311 ;;; End: *** |
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312 */ |
