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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, 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 "Array-flags.h" |
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32 |
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33 #include "ov.h" |
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34 #include "ov-base.h" |
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35 #include "ov-bool.h" |
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36 #include "ov-bool-mat.h" |
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37 #include "ov-scalar.h" |
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38 #include "ov-re-mat.h" |
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39 #include "ov-complex.h" |
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40 #include "ov-cx-mat.h" |
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41 #include "ov-ch-mat.h" |
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42 #include "ov-str-mat.h" |
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43 #include "ov-range.h" |
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44 #include "ov-struct.h" |
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45 #include "ov-list.h" |
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46 #include "ov-colon.h" |
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47 #include "ov-va-args.h" |
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48 #include "ov-typeinfo.h" |
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49 |
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50 #include "defun.h" |
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51 #include "error.h" |
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52 #include "gripes.h" |
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53 #include "pager.h" |
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54 #include "pr-output.h" |
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55 #include "utils.h" |
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56 #include "variables.h" |
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57 |
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58 // We are likely to have a lot of octave_value objects to allocate, so |
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59 // make the grow_size large. |
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60 octave_allocator |
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61 octave_value::allocator (sizeof (octave_value), 1024); |
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62 |
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63 // If TRUE, allow assignments like |
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64 // |
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65 // octave> A(1) = 3; A(2) = 5 |
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66 // |
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67 // for A already defined and a matrix type. |
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68 bool Vdo_fortran_indexing; |
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69 |
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70 // Should we allow things like: |
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71 // |
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72 // octave> 'abc' + 0 |
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73 // 97 98 99 |
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74 // |
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75 // to happen? A positive value means yes. A negative value means |
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76 // yes, but print a warning message. Zero means it should be |
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77 // considered an error. |
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78 int Vimplicit_str_to_num_ok; |
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79 |
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80 // Should we allow silent conversion of complex to real when a real |
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81 // type is what we're really looking for? A positive value means yes. |
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82 // A negative value means yes, but print a warning message. Zero |
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83 // means it should be considered an error. |
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84 int Vok_to_lose_imaginary_part; |
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85 |
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86 // If TRUE, create column vectors when doing assignments like: |
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87 // |
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88 // octave> A(1) = 3; A(2) = 5 |
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89 // |
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90 // (for A undefined). Only matters when resize_on_range_error is also |
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91 // TRUE. |
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92 bool Vprefer_column_vectors; |
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93 |
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94 // If TRUE, print the name along with the value. |
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95 bool Vprint_answer_id_name; |
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96 |
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97 // Should operations on empty matrices return empty matrices or an |
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98 // error? A positive value means yes. A negative value means yes, |
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99 // but print a warning message. Zero means it should be considered an |
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100 // error. |
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101 int Vpropagate_empty_matrices; |
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102 |
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103 // If TRUE, resize matrices when performing and indexed assignment and |
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104 // the indices are outside the current bounds. |
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105 bool Vresize_on_range_error; |
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106 |
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107 // How many levels of structure elements should we print? |
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108 int Vstruct_levels_to_print; |
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109 |
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110 // Allow divide by zero errors to be suppressed. |
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111 bool Vwarn_divide_by_zero; |
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112 |
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113 // Indentation level for structures. |
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114 int struct_indent = 0; |
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115 |
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116 // XXX FIXME XXX |
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117 void |
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118 increment_struct_indent (void) |
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119 { |
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120 struct_indent += 2; |
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121 } |
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122 |
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123 void |
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124 decrement_struct_indent (void) |
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125 { |
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126 struct_indent -= 2; |
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127 } |
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128 |
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129 // Indentation level for lists. |
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130 int list_indent = 0; |
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131 |
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132 void |
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133 increment_list_indent (void) |
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134 { |
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135 list_indent += 2; |
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136 } |
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137 |
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138 void |
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139 decrement_list_indent (void) |
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140 { |
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141 list_indent -= 2; |
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142 } |
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143 |
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144 // XXX FIXME XXX |
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145 |
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146 // Octave's value type. |
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147 |
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148 string |
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149 octave_value::binary_op_as_string (binary_op op) |
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150 { |
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151 string retval; |
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152 |
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153 switch (op) |
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154 { |
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155 case add: |
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156 retval = "+"; |
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157 break; |
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158 |
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159 case sub: |
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160 retval = "-"; |
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161 break; |
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162 |
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163 case mul: |
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164 retval = "*"; |
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165 break; |
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166 |
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167 case div: |
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168 retval = "/"; |
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169 break; |
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170 |
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171 case pow: |
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172 retval = "^"; |
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173 break; |
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174 |
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175 case ldiv: |
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176 retval = "\\"; |
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177 break; |
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178 |
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179 case lt: |
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180 retval = "<"; |
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181 break; |
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182 |
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183 case le: |
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184 retval = "<="; |
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185 break; |
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186 |
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187 case eq: |
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188 retval = "=="; |
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189 break; |
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190 |
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191 case ge: |
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192 retval = ">="; |
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193 break; |
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194 |
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195 case gt: |
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196 retval = ">"; |
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197 break; |
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198 |
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199 case ne: |
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200 retval = "!="; |
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201 break; |
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202 |
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203 case el_mul: |
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204 retval = ".*"; |
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205 break; |
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206 |
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207 case el_div: |
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208 retval = "./"; |
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209 break; |
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210 |
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211 case el_pow: |
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212 retval = ".^"; |
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213 break; |
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214 |
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215 case el_ldiv: |
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216 retval = ".\\"; |
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217 break; |
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218 |
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219 case el_and: |
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220 retval = "&"; |
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221 break; |
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222 |
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223 case el_or: |
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224 retval = "|"; |
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225 break; |
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226 |
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227 case struct_ref: |
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228 retval = "."; |
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229 break; |
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230 |
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231 default: |
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232 retval = "<unknown>"; |
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233 } |
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234 |
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235 return retval; |
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236 } |
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237 |
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238 string |
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239 octave_value::assign_op_as_string (assign_op op) |
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240 { |
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241 string retval; |
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242 |
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243 switch (op) |
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244 { |
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245 case asn_eq: |
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246 retval = "="; |
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247 break; |
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248 |
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249 case add_eq: |
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250 retval = "+="; |
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251 break; |
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252 |
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253 case sub_eq: |
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254 retval = "-="; |
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255 break; |
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256 |
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257 case mul_eq: |
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258 retval = "*="; |
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259 break; |
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260 |
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261 case div_eq: |
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262 retval = "/="; |
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263 break; |
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264 |
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265 case el_mul_eq: |
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266 retval = ".*="; |
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267 break; |
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268 |
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269 case el_div_eq: |
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270 retval = "./="; |
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271 break; |
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272 |
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273 case el_and_eq: |
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274 retval = "&="; |
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275 break; |
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276 |
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277 case el_or_eq: |
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278 retval = "|="; |
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279 break; |
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280 |
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281 default: |
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282 retval = "<unknown>"; |
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283 } |
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284 |
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285 return retval; |
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286 } |
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287 |
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288 octave_value::octave_value (void) |
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289 : rep (new octave_base_value ()) |
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290 { |
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291 rep->count = 1; |
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292 } |
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293 |
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294 octave_value::octave_value (double d) |
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295 : rep (new octave_scalar (d)) |
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296 { |
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297 rep->count = 1; |
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298 } |
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299 |
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300 octave_value::octave_value (const Matrix& m) |
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301 : rep (new octave_matrix (m)) |
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302 { |
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303 rep->count = 1; |
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304 maybe_mutate (); |
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305 } |
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306 |
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307 octave_value::octave_value (const DiagMatrix& d) |
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308 : rep (new octave_matrix (d)) |
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309 { |
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310 rep->count = 1; |
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311 maybe_mutate (); |
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312 } |
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313 |
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314 octave_value::octave_value (const RowVector& v, int pcv) |
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315 : rep (new octave_matrix (v, pcv)) |
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316 { |
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317 rep->count = 1; |
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318 maybe_mutate (); |
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319 } |
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320 |
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321 octave_value::octave_value (const ColumnVector& v, int pcv) |
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322 : rep (new octave_matrix (v, pcv)) |
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323 { |
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324 rep->count = 1; |
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325 maybe_mutate (); |
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326 } |
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327 |
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328 octave_value::octave_value (const Complex& C) |
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329 : rep (new octave_complex (C)) |
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330 { |
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331 rep->count = 1; |
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332 maybe_mutate (); |
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333 } |
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334 |
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335 octave_value::octave_value (const ComplexMatrix& m) |
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336 : rep (new octave_complex_matrix (m)) |
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337 { |
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338 rep->count = 1; |
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339 maybe_mutate (); |
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340 } |
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341 |
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342 octave_value::octave_value (const ComplexDiagMatrix& d) |
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343 : rep (new octave_complex_matrix (d)) |
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344 { |
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345 rep->count = 1; |
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346 maybe_mutate (); |
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347 } |
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348 |
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349 octave_value::octave_value (const ComplexRowVector& v, int pcv) |
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350 : rep (new octave_complex_matrix (v, pcv)) |
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351 { |
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352 rep->count = 1; |
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353 maybe_mutate (); |
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354 } |
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355 |
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356 octave_value::octave_value (const ComplexColumnVector& v, int pcv) |
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357 : rep (new octave_complex_matrix (v, pcv)) |
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358 { |
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359 rep->count = 1; |
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360 maybe_mutate (); |
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361 } |
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362 |
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363 octave_value::octave_value (bool b) |
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364 : rep (new octave_bool (b)) |
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365 { |
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366 rep->count = 1; |
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367 } |
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368 |
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369 octave_value::octave_value (const boolMatrix& bm) |
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370 : rep (new octave_bool_matrix (bm)) |
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371 { |
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372 rep->count = 1; |
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373 maybe_mutate (); |
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374 } |
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375 |
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376 octave_value::octave_value (const char *s) |
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377 : rep (new octave_char_matrix_str (s)) |
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378 { |
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379 rep->count = 1; |
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380 maybe_mutate (); |
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381 } |
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382 |
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383 octave_value::octave_value (const string& s) |
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384 : rep (new octave_char_matrix_str (s)) |
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385 { |
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386 rep->count = 1; |
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387 maybe_mutate (); |
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388 } |
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389 |
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390 octave_value::octave_value (const string_vector& s) |
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391 : rep (new octave_char_matrix_str (s)) |
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392 { |
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393 rep->count = 1; |
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394 maybe_mutate (); |
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395 } |
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396 |
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397 octave_value::octave_value (const charMatrix& chm, bool is_string) |
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398 : rep (0) |
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399 { |
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400 if (is_string) |
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401 rep = new octave_char_matrix_str (chm); |
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402 else |
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403 rep = new octave_char_matrix (chm); |
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404 |
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405 rep->count = 1; |
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406 maybe_mutate (); |
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407 } |
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408 |
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409 octave_value::octave_value (double base, double limit, double inc) |
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410 : rep (new octave_range (base, limit, inc)) |
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411 { |
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412 rep->count = 1; |
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413 maybe_mutate (); |
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414 } |
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415 |
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416 octave_value::octave_value (const Range& r) |
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417 : rep (new octave_range (r)) |
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418 { |
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419 rep->count = 1; |
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420 maybe_mutate (); |
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421 } |
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422 |
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423 octave_value::octave_value (const Octave_map& m) |
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424 : rep (new octave_struct (m)) |
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425 { |
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426 rep->count = 1; |
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427 } |
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428 |
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429 octave_value::octave_value (const octave_value_list& l) |
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430 : rep (new octave_list (l)) |
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431 { |
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432 rep->count = 1; |
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433 } |
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434 |
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435 octave_value::octave_value (octave_value::magic_colon) |
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436 : rep (new octave_magic_colon ()) |
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437 { |
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438 rep->count = 1; |
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439 } |
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440 |
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441 octave_value::octave_value (octave_value::all_va_args) |
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442 : rep (new octave_all_va_args ()) |
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443 { |
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444 rep->count = 1; |
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445 } |
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446 |
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447 octave_value::octave_value (octave_value *new_rep) |
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448 : rep (new_rep) |
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449 { |
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450 rep->count = 1; |
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451 } |
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452 |
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453 octave_value::~octave_value (void) |
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454 { |
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455 #if defined (MDEBUG) |
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456 cerr << "~octave_value: rep: " << rep |
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457 << " rep->count: " << rep->count << "\n"; |
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458 #endif |
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459 |
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460 if (rep && --rep->count == 0) |
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461 { |
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462 delete rep; |
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463 rep = 0; |
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464 } |
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465 } |
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466 |
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467 octave_value * |
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468 octave_value::clone (void) |
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469 { |
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470 panic_impossible (); |
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471 } |
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472 |
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473 void |
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474 octave_value::maybe_mutate (void) |
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475 { |
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476 octave_value *tmp = rep->try_narrowing_conversion (); |
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477 |
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478 if (tmp && tmp != rep) |
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479 { |
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480 if (--rep->count == 0) |
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481 delete rep; |
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482 |
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483 rep = tmp; |
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484 rep->count = 1; |
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485 } |
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486 } |
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487 |
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488 static void |
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489 gripe_no_conversion (const string& tn1, const string& tn2) |
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490 { |
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491 error ("no suitable conversion found for assignment of %s to indexed %s", |
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492 tn2.c_str (), tn1.c_str ()); |
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493 } |
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494 |
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2409
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495 octave_value& |
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496 octave_value::assign (assign_op, const octave_value& rhs) |
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497 { |
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498 // XXX FIXME XXX -- make this work for ops other than `='. |
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499 |
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500 return operator = (rhs); |
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501 } |
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502 |
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503 octave_value& |
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504 octave_value::assign (octave_value::assign_op op, |
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505 const octave_value_list& idx, |
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506 const octave_value& rhs) |
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507 { |
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508 make_unique (); |
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509 |
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2880
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510 bool assignment_ok = try_assignment (op, idx, rhs); |
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2409
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511 |
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512 if (! (error_state || assignment_ok)) |
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513 { |
|
2880
|
514 assignment_ok = try_assignment_with_conversion (op,idx, rhs); |
|
2409
|
515 |
|
|
516 if (! (error_state || assignment_ok)) |
|
2376
|
517 gripe_no_conversion (type_name (), rhs.type_name ()); |
|
|
518 } |
|
|
519 |
|
2409
|
520 if (! error_state) |
|
|
521 maybe_mutate (); |
|
|
522 |
|
2376
|
523 return *this; |
|
|
524 } |
|
|
525 |
|
|
526 Octave_map |
|
|
527 octave_value::map_value (void) const |
|
|
528 { |
|
|
529 return rep->map_value (); |
|
|
530 } |
|
|
531 |
|
2880
|
532 octave_value_list |
|
|
533 octave_value::list_value (void) const |
|
|
534 { |
|
|
535 return rep->list_value (); |
|
|
536 } |
|
|
537 |
|
2376
|
538 ColumnVector |
|
|
539 octave_value::vector_value (bool force_string_conv, |
|
|
540 bool force_vector_conversion) const |
|
|
541 { |
|
|
542 ColumnVector retval; |
|
|
543 |
|
|
544 Matrix m = matrix_value (force_string_conv); |
|
|
545 |
|
|
546 if (error_state) |
|
|
547 return retval; |
|
|
548 |
|
|
549 int nr = m.rows (); |
|
|
550 int nc = m.columns (); |
|
|
551 |
|
|
552 if (nr == 1) |
|
|
553 { |
|
|
554 retval.resize (nc); |
|
|
555 for (int i = 0; i < nc; i++) |
|
|
556 retval (i) = m (0, i); |
|
|
557 } |
|
|
558 else if (nc == 1) |
|
|
559 { |
|
|
560 retval.resize (nr); |
|
|
561 for (int i = 0; i < nr; i++) |
|
|
562 retval (i) = m (i, 0); |
|
|
563 } |
|
|
564 else if (nr > 0 && nc > 0 |
|
|
565 && (Vdo_fortran_indexing || force_vector_conversion)) |
|
|
566 { |
|
|
567 retval.resize (nr * nc); |
|
|
568 int k = 0; |
|
|
569 for (int j = 0; j < nc; j++) |
|
|
570 for (int i = 0; i < nr; i++) |
|
|
571 retval (k++) = m (i, j); |
|
|
572 } |
|
|
573 else |
|
|
574 { |
|
|
575 string tn = type_name (); |
|
|
576 gripe_invalid_conversion (tn.c_str (), "real vector"); |
|
|
577 } |
|
|
578 |
|
|
579 return retval; |
|
|
580 } |
|
|
581 |
|
|
582 ComplexColumnVector |
|
|
583 octave_value::complex_vector_value (bool force_string_conv, |
|
|
584 bool force_vector_conversion) const |
|
|
585 { |
|
|
586 ComplexColumnVector retval; |
|
|
587 |
|
|
588 ComplexMatrix m = complex_matrix_value (force_string_conv); |
|
|
589 |
|
|
590 if (error_state) |
|
|
591 return retval; |
|
|
592 |
|
|
593 int nr = m.rows (); |
|
|
594 int nc = m.columns (); |
|
|
595 |
|
|
596 if (nr == 1) |
|
|
597 { |
|
|
598 retval.resize (nc); |
|
|
599 for (int i = 0; i < nc; i++) |
|
|
600 retval (i) = m (0, i); |
|
|
601 } |
|
|
602 else if (nc == 1) |
|
|
603 { |
|
|
604 retval.resize (nr); |
|
|
605 for (int i = 0; i < nr; i++) |
|
|
606 retval (i) = m (i, 0); |
|
|
607 } |
|
|
608 else if (nr > 0 && nc > 0 |
|
|
609 && (Vdo_fortran_indexing || force_vector_conversion)) |
|
|
610 { |
|
|
611 retval.resize (nr * nc); |
|
|
612 int k = 0; |
|
|
613 for (int j = 0; j < nc; j++) |
|
|
614 for (int i = 0; i < nr; i++) |
|
|
615 retval (k++) = m (i, j); |
|
|
616 } |
|
|
617 else |
|
|
618 { |
|
|
619 string tn = type_name (); |
|
|
620 gripe_invalid_conversion (tn.c_str (), "complex vector"); |
|
|
621 } |
|
|
622 |
|
|
623 return retval; |
|
|
624 } |
|
|
625 |
|
|
626 void |
|
2466
|
627 octave_value::print (bool pr_as_read_syntax) |
|
2376
|
628 { |
|
2466
|
629 print (octave_stdout, pr_as_read_syntax); |
|
2376
|
630 } |
|
|
631 |
|
|
632 void |
|
|
633 octave_value::print_with_name (const string& name, bool print_padding) |
|
|
634 { |
|
|
635 print_with_name (octave_stdout, name, print_padding); |
|
|
636 } |
|
|
637 |
|
|
638 void |
|
|
639 octave_value::print_with_name (ostream& output_buf, const string& name, |
|
|
640 bool print_padding) |
|
|
641 { |
|
|
642 bool pad_after = false; |
|
|
643 |
|
|
644 if (Vprint_answer_id_name) |
|
|
645 { |
|
|
646 if (print_as_scalar ()) |
|
|
647 output_buf << name << " = "; |
|
2475
|
648 else if (is_map ()) |
|
2376
|
649 { |
|
|
650 pad_after = true; |
|
|
651 output_buf << name << " ="; |
|
|
652 } |
|
|
653 else |
|
|
654 { |
|
|
655 pad_after = true; |
|
|
656 output_buf << name << " =\n\n"; |
|
|
657 } |
|
|
658 } |
|
|
659 |
|
|
660 print (output_buf); |
|
|
661 |
|
|
662 if (print_padding && pad_after) |
|
|
663 output_buf << "\n"; |
|
|
664 } |
|
|
665 |
|
|
666 bool |
|
|
667 octave_value::print_as_scalar (void) |
|
|
668 { |
|
|
669 int nr = rows (); |
|
|
670 int nc = columns (); |
|
|
671 |
|
|
672 return (is_scalar_type () |
|
|
673 || (is_string () && nr <= 1) |
|
|
674 || (is_matrix_type () |
|
|
675 && ((nr == 1 && nc == 1) |
|
|
676 || nr == 0 |
|
|
677 || nc == 0))); |
|
|
678 } |
|
|
679 |
|
|
680 static void |
|
2413
|
681 gripe_indexed_assignment (const string& tn1, const string& tn2) |
|
|
682 { |
|
|
683 error ("assignment of %s to indexed %s not implemented", |
|
|
684 tn2.c_str (), tn1.c_str ()); |
|
|
685 } |
|
|
686 |
|
|
687 static void |
|
|
688 gripe_conversion_failed (const string& tn1, const string& tn2) |
|
|
689 { |
|
|
690 error ("type conversion for assignment of %s to indexed %s failed", |
|
|
691 tn2.c_str (), tn1.c_str ()); |
|
|
692 } |
|
|
693 |
|
|
694 bool |
|
2880
|
695 octave_value::convert_and_assign (octave_value::assign_op op, |
|
|
696 const octave_value_list& idx, |
|
2413
|
697 const octave_value& rhs) |
|
|
698 { |
|
|
699 bool assignment_ok = false; |
|
|
700 |
|
|
701 int t_lhs = type_id (); |
|
|
702 int t_rhs = rhs.type_id (); |
|
|
703 |
|
|
704 int t_result |
|
|
705 = octave_value_typeinfo::lookup_pref_assign_conv (t_lhs, t_rhs); |
|
|
706 |
|
|
707 if (t_result >= 0) |
|
|
708 { |
|
2427
|
709 type_conv_fcn cf |
|
2413
|
710 = octave_value_typeinfo::lookup_widening_op (t_lhs, t_result); |
|
|
711 |
|
|
712 if (cf) |
|
|
713 { |
|
|
714 octave_value *tmp = cf (*rep); |
|
|
715 |
|
|
716 if (tmp) |
|
|
717 { |
|
2589
|
718 octave_value *old_rep = rep; |
|
|
719 rep = tmp; |
|
|
720 rep->count = 1; |
|
|
721 |
|
2880
|
722 assignment_ok = try_assignment (op, idx, rhs); |
|
2589
|
723 |
|
|
724 if (! assignment_ok && old_rep) |
|
2413
|
725 { |
|
|
726 if (--rep->count == 0) |
|
|
727 delete rep; |
|
|
728 |
|
2589
|
729 rep = old_rep; |
|
|
730 old_rep = 0; |
|
2413
|
731 } |
|
|
732 |
|
2589
|
733 if (old_rep && --old_rep->count == 0) |
|
|
734 delete old_rep; |
|
2413
|
735 } |
|
|
736 else |
|
|
737 gripe_conversion_failed (type_name (), rhs.type_name ()); |
|
|
738 } |
|
|
739 else |
|
|
740 gripe_indexed_assignment (type_name (), rhs.type_name ()); |
|
|
741 } |
|
|
742 |
|
|
743 return (assignment_ok && ! error_state); |
|
|
744 } |
|
|
745 |
|
|
746 bool |
|
2880
|
747 octave_value::try_assignment_with_conversion (octave_value::assign_op op, |
|
|
748 const octave_value_list& idx, |
|
2413
|
749 const octave_value& rhs) |
|
|
750 { |
|
2880
|
751 bool assignment_ok = convert_and_assign (op, idx, rhs); |
|
2413
|
752 |
|
|
753 if (! (error_state || assignment_ok)) |
|
|
754 { |
|
|
755 octave_value tmp_rhs; |
|
2427
|
756 type_conv_fcn cf_rhs = rhs.numeric_conversion_function (); |
|
2413
|
757 |
|
|
758 if (cf_rhs) |
|
|
759 tmp_rhs = octave_value (cf_rhs (*rhs.rep)); |
|
|
760 else |
|
|
761 tmp_rhs = rhs; |
|
|
762 |
|
|
763 octave_value *old_rep = 0; |
|
2427
|
764 type_conv_fcn cf_this = numeric_conversion_function (); |
|
2413
|
765 |
|
|
766 if (cf_this) |
|
|
767 { |
|
|
768 old_rep = rep; |
|
|
769 rep = cf_this (*rep); |
|
|
770 rep->count = 1; |
|
|
771 } |
|
|
772 |
|
|
773 if (cf_this || cf_rhs) |
|
|
774 { |
|
2880
|
775 assignment_ok = try_assignment (op, idx, tmp_rhs); |
|
2413
|
776 |
|
|
777 if (! (error_state || assignment_ok)) |
|
2880
|
778 assignment_ok = convert_and_assign (op, idx, tmp_rhs); |
|
2413
|
779 } |
|
|
780 |
|
|
781 if (! assignment_ok && old_rep) |
|
|
782 { |
|
|
783 if (--rep->count == 0) |
|
|
784 delete rep; |
|
|
785 |
|
|
786 rep = old_rep; |
|
|
787 old_rep = 0; |
|
|
788 } |
|
|
789 |
|
|
790 if (old_rep && --old_rep->count == 0) |
|
|
791 delete old_rep; |
|
|
792 } |
|
|
793 |
|
|
794 return (assignment_ok && ! error_state); |
|
|
795 } |
|
|
796 |
|
|
797 bool |
|
2880
|
798 octave_value::try_assignment (octave_value::assign_op op, |
|
|
799 const octave_value_list& idx, |
|
2413
|
800 const octave_value& rhs) |
|
|
801 { |
|
|
802 bool retval = false; |
|
|
803 |
|
|
804 int t_lhs = type_id (); |
|
|
805 int t_rhs = rhs.type_id (); |
|
|
806 |
|
2880
|
807 assign_op_fcn f |
|
|
808 = octave_value_typeinfo::lookup_assign_op (op, t_lhs, t_rhs); |
|
2413
|
809 |
|
|
810 if (f) |
|
|
811 { |
|
|
812 f (*rep, idx, *(rhs.rep)); |
|
|
813 |
|
|
814 retval = (! error_state); |
|
|
815 } |
|
|
816 |
|
|
817 return retval; |
|
|
818 } |
|
|
819 |
|
|
820 static void |
|
2376
|
821 gripe_binary_op (const string& on, const string& tn1, const string& tn2) |
|
|
822 { |
|
|
823 error ("binary operator %s not implemented for %s by %s operations", |
|
|
824 on.c_str (), tn1.c_str (), tn2.c_str ()); |
|
|
825 } |
|
|
826 |
|
|
827 octave_value |
|
|
828 do_binary_op (octave_value::binary_op op, const octave_value& v1, |
|
|
829 const octave_value& v2) |
|
|
830 { |
|
|
831 octave_value retval; |
|
|
832 |
|
|
833 int t1 = v1.type_id (); |
|
|
834 int t2 = v2.type_id (); |
|
|
835 |
|
2427
|
836 binary_op_fcn f = octave_value_typeinfo::lookup_binary_op (op, t1, t2); |
|
2376
|
837 |
|
|
838 if (f) |
|
|
839 retval = f (*v1.rep, *v2.rep); |
|
|
840 else |
|
|
841 { |
|
|
842 octave_value tv1; |
|
2427
|
843 type_conv_fcn cf1 = v1.numeric_conversion_function (); |
|
2376
|
844 |
|
|
845 if (cf1) |
|
|
846 { |
|
|
847 tv1 = octave_value (cf1 (*v1.rep)); |
|
|
848 t1 = tv1.type_id (); |
|
|
849 } |
|
|
850 else |
|
|
851 tv1 = v1; |
|
|
852 |
|
|
853 octave_value tv2; |
|
2427
|
854 type_conv_fcn cf2 = v2.numeric_conversion_function (); |
|
2376
|
855 |
|
|
856 if (cf2) |
|
|
857 { |
|
|
858 tv2 = octave_value (cf2 (*v2.rep)); |
|
|
859 t2 = tv2.type_id (); |
|
|
860 } |
|
|
861 else |
|
|
862 tv2 = v2; |
|
|
863 |
|
|
864 if (cf1 || cf2) |
|
|
865 { |
|
2427
|
866 binary_op_fcn f |
|
2376
|
867 = octave_value_typeinfo::lookup_binary_op (op, t1, t2); |
|
|
868 |
|
|
869 if (f) |
|
|
870 retval = f (*tv1.rep, *tv2.rep); |
|
|
871 else |
|
|
872 gripe_binary_op (octave_value::binary_op_as_string (op), |
|
|
873 v1.type_name (), v2.type_name ()); |
|
|
874 } |
|
|
875 else |
|
|
876 gripe_binary_op (octave_value::binary_op_as_string (op), |
|
|
877 v1.type_name (), v2.type_name ()); |
|
|
878 } |
|
|
879 |
|
|
880 return retval; |
|
|
881 } |
|
|
882 |
|
|
883 void |
|
|
884 install_types (void) |
|
|
885 { |
|
|
886 octave_base_value::register_type (); |
|
|
887 octave_scalar::register_type (); |
|
|
888 octave_complex::register_type (); |
|
|
889 octave_matrix::register_type (); |
|
|
890 octave_complex_matrix::register_type (); |
|
|
891 octave_range::register_type (); |
|
2825
|
892 octave_bool::register_type (); |
|
|
893 octave_bool_matrix::register_type (); |
|
2376
|
894 octave_char_matrix::register_type (); |
|
|
895 octave_char_matrix_str::register_type (); |
|
|
896 octave_struct::register_type (); |
|
2880
|
897 octave_list::register_type (); |
|
2376
|
898 octave_all_va_args::register_type (); |
|
|
899 octave_magic_colon::register_type (); |
|
|
900 } |
|
|
901 |
|
|
902 static int |
|
|
903 do_fortran_indexing (void) |
|
|
904 { |
|
|
905 Vdo_fortran_indexing = check_preference ("do_fortran_indexing"); |
|
|
906 |
|
|
907 liboctave_dfi_flag = Vdo_fortran_indexing; |
|
|
908 |
|
|
909 return 0; |
|
|
910 } |
|
|
911 |
|
|
912 static int |
|
|
913 implicit_str_to_num_ok (void) |
|
|
914 { |
|
|
915 Vimplicit_str_to_num_ok = check_preference ("implicit_str_to_num_ok"); |
|
|
916 |
|
|
917 return 0; |
|
|
918 } |
|
|
919 |
|
|
920 static int |
|
|
921 ok_to_lose_imaginary_part (void) |
|
|
922 { |
|
|
923 Vok_to_lose_imaginary_part = check_preference ("ok_to_lose_imaginary_part"); |
|
|
924 |
|
|
925 return 0; |
|
|
926 } |
|
|
927 |
|
|
928 static int |
|
|
929 prefer_column_vectors (void) |
|
|
930 { |
|
|
931 Vprefer_column_vectors |
|
|
932 = check_preference ("prefer_column_vectors"); |
|
|
933 |
|
|
934 liboctave_pcv_flag = Vprefer_column_vectors; |
|
|
935 |
|
|
936 return 0; |
|
|
937 } |
|
|
938 |
|
|
939 static int |
|
|
940 print_answer_id_name (void) |
|
|
941 { |
|
|
942 Vprint_answer_id_name = check_preference ("print_answer_id_name"); |
|
|
943 |
|
|
944 return 0; |
|
|
945 } |
|
|
946 |
|
|
947 static int |
|
|
948 propagate_empty_matrices (void) |
|
|
949 { |
|
|
950 Vpropagate_empty_matrices = check_preference ("propagate_empty_matrices"); |
|
|
951 |
|
|
952 return 0; |
|
|
953 } |
|
|
954 |
|
|
955 static int |
|
|
956 resize_on_range_error (void) |
|
|
957 { |
|
|
958 Vresize_on_range_error = check_preference ("resize_on_range_error"); |
|
|
959 |
|
|
960 liboctave_rre_flag = Vresize_on_range_error; |
|
|
961 |
|
|
962 return 0; |
|
|
963 } |
|
|
964 |
|
|
965 static int |
|
|
966 struct_levels_to_print (void) |
|
|
967 { |
|
|
968 double val; |
|
|
969 if (builtin_real_scalar_variable ("struct_levels_to_print", val) |
|
|
970 && ! xisnan (val)) |
|
|
971 { |
|
|
972 int ival = NINT (val); |
|
2800
|
973 if (ival >= 0 && ival == val) |
|
2376
|
974 { |
|
|
975 Vstruct_levels_to_print = ival; |
|
|
976 return 0; |
|
|
977 } |
|
|
978 } |
|
|
979 gripe_invalid_value_specified ("struct_levels_to_print"); |
|
|
980 return -1; |
|
|
981 } |
|
|
982 |
|
|
983 static int |
|
|
984 warn_divide_by_zero (void) |
|
|
985 { |
|
|
986 Vwarn_divide_by_zero = check_preference ("warn_divide_by_zero"); |
|
|
987 |
|
|
988 return 0; |
|
|
989 } |
|
|
990 |
|
|
991 void |
|
|
992 symbols_of_value (void) |
|
|
993 { |
|
|
994 DEFVAR (do_fortran_indexing, 0.0, 0, do_fortran_indexing, |
|
|
995 "allow single indices for matrices"); |
|
|
996 |
|
|
997 DEFVAR (implicit_str_to_num_ok, 0.0, 0, implicit_str_to_num_ok, |
|
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998 "allow implicit string to number conversion"); |
|
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999 |
|
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1000 DEFVAR (ok_to_lose_imaginary_part, "warn", 0, ok_to_lose_imaginary_part, |
|
|
1001 "silently convert from complex to real by dropping imaginary part"); |
|
|
1002 |
|
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1003 DEFVAR (prefer_column_vectors, 1.0, 0, prefer_column_vectors, |
|
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1004 "prefer column/row vectors"); |
|
|
1005 |
|
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1006 DEFVAR (print_answer_id_name, 1.0, 0, print_answer_id_name, |
|
|
1007 "set output style to print `var_name = ...'"); |
|
|
1008 |
|
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1009 DEFVAR (propagate_empty_matrices, 1.0, 0, propagate_empty_matrices, |
|
|
1010 "operations on empty matrices return an empty matrix, not an error"); |
|
|
1011 |
|
|
1012 DEFVAR (resize_on_range_error, 1.0, 0, resize_on_range_error, |
|
|
1013 "enlarge matrices on assignment"); |
|
|
1014 |
|
|
1015 DEFVAR (struct_levels_to_print, 2.0, 0, struct_levels_to_print, |
|
|
1016 "number of levels of structure elements to print"); |
|
|
1017 |
|
|
1018 DEFVAR (warn_divide_by_zero, 1.0, 0, warn_divide_by_zero, |
|
|
1019 "If TRUE, warn about division by zero"); |
|
|
1020 } |
|
|
1021 |
|
|
1022 /* |
|
|
1023 ;;; Local Variables: *** |
|
|
1024 ;;; mode: C++ *** |
|
|
1025 ;;; End: *** |
|
|
1026 */ |
