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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 #include "str-vec.h" |
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33 |
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34 #include "ov.h" |
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35 #include "ov-base.h" |
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36 #include "ov-bool.h" |
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37 #include "ov-bool-mat.h" |
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38 #include "ov-scalar.h" |
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39 #include "ov-re-mat.h" |
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40 #include "ov-complex.h" |
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41 #include "ov-cx-mat.h" |
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42 #include "ov-ch-mat.h" |
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43 #include "ov-str-mat.h" |
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44 #include "ov-range.h" |
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45 #include "ov-struct.h" |
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46 #include "ov-file.h" |
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47 #include "ov-list.h" |
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48 #include "ov-colon.h" |
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49 #include "ov-va-args.h" |
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50 #include "ov-typeinfo.h" |
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51 |
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52 #include "defun.h" |
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53 #include "error.h" |
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54 #include "gripes.h" |
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55 #include "pager.h" |
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56 #include "pr-output.h" |
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57 #include "utils.h" |
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58 #include "variables.h" |
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59 |
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60 // We are likely to have a lot of octave_value objects to allocate, so |
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61 // make the grow_size large. |
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62 octave_allocator |
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63 octave_value::allocator (sizeof (octave_value), 1024); |
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64 |
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65 // If TRUE, allow assignments like |
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66 // |
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67 // octave> A(1) = 3; A(2) = 5 |
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68 // |
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69 // for A already defined and a matrix type. |
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70 bool Vdo_fortran_indexing; |
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71 |
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72 // Should we allow things like: |
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73 // |
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74 // octave> 'abc' + 0 |
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75 // 97 98 99 |
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76 // |
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77 // to happen? A positive value means yes. A negative value means |
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78 // yes, but print a warning message. Zero means it should be |
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79 // considered an error. |
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80 int Vimplicit_str_to_num_ok; |
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81 |
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82 // Should we allow silent conversion of complex to real when a real |
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83 // type is what we're really looking for? A positive value means yes. |
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84 // A negative value means yes, but print a warning message. Zero |
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85 // means it should be considered an error. |
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86 int Vok_to_lose_imaginary_part; |
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87 |
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88 // If TRUE, create column vectors when doing assignments like: |
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89 // |
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90 // octave> A(1) = 3; A(2) = 5 |
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91 // |
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92 // (for A undefined). Only matters when resize_on_range_error is also |
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93 // TRUE. |
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94 bool Vprefer_column_vectors; |
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95 |
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96 // If TRUE, print the name along with the value. |
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97 bool Vprint_answer_id_name; |
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98 |
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99 // Should operations on empty matrices return empty matrices or an |
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100 // error? A positive value means yes. A negative value means yes, |
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101 // but print a warning message. Zero means it should be considered an |
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102 // error. |
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103 int Vpropagate_empty_matrices; |
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104 |
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105 // If TRUE, resize matrices when performing and indexed assignment and |
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106 // the indices are outside the current bounds. |
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107 bool Vresize_on_range_error; |
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108 |
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109 // How many levels of structure elements should we print? |
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110 int Vstruct_levels_to_print; |
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111 |
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112 // Allow divide by zero errors to be suppressed. |
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113 bool Vwarn_divide_by_zero; |
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114 |
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115 // XXX FIXME XXX |
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116 |
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117 // Octave's value type. |
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118 |
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119 string |
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120 octave_value::binary_op_as_string (binary_op op) |
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121 { |
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122 string retval; |
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123 |
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124 switch (op) |
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125 { |
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126 case add: |
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127 retval = "+"; |
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128 break; |
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129 |
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130 case sub: |
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131 retval = "-"; |
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132 break; |
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133 |
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134 case mul: |
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135 retval = "*"; |
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136 break; |
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137 |
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138 case div: |
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139 retval = "/"; |
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140 break; |
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141 |
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142 case pow: |
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143 retval = "^"; |
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144 break; |
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145 |
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146 case ldiv: |
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147 retval = "\\"; |
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148 break; |
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149 |
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150 case lshift: |
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151 retval = "<<"; |
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152 break; |
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153 |
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154 case rshift: |
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155 retval = ">>"; |
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156 break; |
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157 |
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158 case lt: |
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159 retval = "<"; |
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160 break; |
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161 |
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162 case le: |
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163 retval = "<="; |
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164 break; |
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165 |
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166 case eq: |
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167 retval = "=="; |
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168 break; |
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169 |
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170 case ge: |
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171 retval = ">="; |
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172 break; |
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173 |
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174 case gt: |
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175 retval = ">"; |
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176 break; |
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177 |
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178 case ne: |
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179 retval = "!="; |
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180 break; |
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181 |
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182 case el_mul: |
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183 retval = ".*"; |
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184 break; |
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185 |
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186 case el_div: |
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187 retval = "./"; |
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188 break; |
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189 |
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190 case el_pow: |
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191 retval = ".^"; |
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192 break; |
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193 |
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194 case el_ldiv: |
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195 retval = ".\\"; |
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196 break; |
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197 |
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198 case el_and: |
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199 retval = "&"; |
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200 break; |
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201 |
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202 case el_or: |
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203 retval = "|"; |
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204 break; |
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205 |
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206 case struct_ref: |
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207 retval = "."; |
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208 break; |
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209 |
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210 default: |
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211 retval = "<unknown>"; |
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212 } |
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213 |
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214 return retval; |
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215 } |
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216 |
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217 string |
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218 octave_value::assign_op_as_string (assign_op op) |
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219 { |
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220 string retval; |
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221 |
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222 switch (op) |
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223 { |
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224 case asn_eq: |
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225 retval = "="; |
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226 break; |
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227 |
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228 case add_eq: |
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229 retval = "+="; |
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230 break; |
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231 |
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232 case sub_eq: |
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233 retval = "-="; |
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234 break; |
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235 |
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236 case mul_eq: |
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237 retval = "*="; |
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238 break; |
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239 |
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240 case div_eq: |
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241 retval = "/="; |
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242 break; |
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243 |
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244 case lshift_eq: |
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245 retval = "<<="; |
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246 break; |
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247 |
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248 case rshift_eq: |
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249 retval = ">>="; |
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250 break; |
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251 |
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252 case el_mul_eq: |
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253 retval = ".*="; |
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254 break; |
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255 |
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256 case el_div_eq: |
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257 retval = "./="; |
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258 break; |
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259 |
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260 case el_and_eq: |
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261 retval = "&="; |
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262 break; |
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263 |
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264 case el_or_eq: |
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265 retval = "|="; |
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266 break; |
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267 |
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268 default: |
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269 retval = "<unknown>"; |
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270 } |
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271 |
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272 return retval; |
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273 } |
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274 |
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275 octave_value::octave_value (void) |
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276 : rep (new octave_base_value ()) |
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277 { |
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278 rep->count = 1; |
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279 } |
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280 |
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281 octave_value::octave_value (double d) |
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282 : rep (new octave_scalar (d)) |
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283 { |
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284 rep->count = 1; |
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285 } |
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286 |
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287 octave_value::octave_value (const Matrix& m) |
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288 : rep (new octave_matrix (m)) |
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289 { |
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290 rep->count = 1; |
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291 maybe_mutate (); |
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292 } |
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293 |
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294 octave_value::octave_value (const DiagMatrix& d) |
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295 : rep (new octave_matrix (d)) |
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296 { |
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297 rep->count = 1; |
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298 maybe_mutate (); |
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299 } |
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300 |
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301 octave_value::octave_value (const RowVector& v, int pcv) |
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302 : rep (new octave_matrix (v, pcv)) |
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303 { |
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304 rep->count = 1; |
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305 maybe_mutate (); |
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306 } |
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307 |
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308 octave_value::octave_value (const ColumnVector& v, int pcv) |
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309 : rep (new octave_matrix (v, pcv)) |
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310 { |
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311 rep->count = 1; |
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312 maybe_mutate (); |
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313 } |
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314 |
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315 octave_value::octave_value (const Complex& C) |
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316 : rep (new octave_complex (C)) |
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317 { |
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318 rep->count = 1; |
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319 maybe_mutate (); |
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320 } |
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321 |
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322 octave_value::octave_value (const ComplexMatrix& m) |
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323 : rep (new octave_complex_matrix (m)) |
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324 { |
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325 rep->count = 1; |
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326 maybe_mutate (); |
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327 } |
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328 |
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329 octave_value::octave_value (const ComplexDiagMatrix& d) |
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330 : rep (new octave_complex_matrix (d)) |
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331 { |
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332 rep->count = 1; |
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333 maybe_mutate (); |
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334 } |
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335 |
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336 octave_value::octave_value (const ComplexRowVector& v, int pcv) |
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337 : rep (new octave_complex_matrix (v, pcv)) |
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338 { |
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339 rep->count = 1; |
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340 maybe_mutate (); |
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341 } |
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342 |
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343 octave_value::octave_value (const ComplexColumnVector& v, int pcv) |
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344 : rep (new octave_complex_matrix (v, pcv)) |
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345 { |
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346 rep->count = 1; |
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347 maybe_mutate (); |
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348 } |
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349 |
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350 octave_value::octave_value (bool b) |
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351 : rep (new octave_bool (b)) |
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352 { |
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353 rep->count = 1; |
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354 } |
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355 |
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356 octave_value::octave_value (const boolMatrix& bm) |
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357 : rep (new octave_bool_matrix (bm)) |
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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 (const char *s) |
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364 : rep (new octave_char_matrix_str (s)) |
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365 { |
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366 rep->count = 1; |
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367 maybe_mutate (); |
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368 } |
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369 |
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370 octave_value::octave_value (const string& s) |
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371 : rep (new octave_char_matrix_str (s)) |
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372 { |
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373 rep->count = 1; |
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374 maybe_mutate (); |
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375 } |
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376 |
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377 octave_value::octave_value (const string_vector& s) |
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378 : rep (new octave_char_matrix_str (s)) |
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379 { |
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380 rep->count = 1; |
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381 maybe_mutate (); |
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382 } |
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383 |
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384 octave_value::octave_value (const charMatrix& chm, bool is_string) |
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385 : rep (0) |
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386 { |
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387 if (is_string) |
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388 rep = new octave_char_matrix_str (chm); |
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389 else |
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390 rep = new octave_char_matrix (chm); |
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391 |
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392 rep->count = 1; |
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393 maybe_mutate (); |
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394 } |
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395 |
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396 octave_value::octave_value (double base, double limit, double inc) |
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397 : rep (new octave_range (base, limit, inc)) |
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398 { |
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399 rep->count = 1; |
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400 maybe_mutate (); |
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401 } |
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402 |
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403 octave_value::octave_value (const Range& r) |
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404 : rep (new octave_range (r)) |
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405 { |
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406 rep->count = 1; |
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407 maybe_mutate (); |
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408 } |
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409 |
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410 octave_value::octave_value (const Octave_map& m) |
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411 : rep (new octave_struct (m)) |
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412 { |
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413 rep->count = 1; |
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414 } |
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415 |
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416 octave_value::octave_value (octave_stream *s, int n) |
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417 : rep (new octave_file (s, n)) |
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418 { |
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419 rep->count = 1; |
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420 } |
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421 |
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422 octave_value::octave_value (const octave_value_list& l) |
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423 : rep (new octave_list (l)) |
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424 { |
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425 rep->count = 1; |
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426 } |
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427 |
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428 octave_value::octave_value (octave_value::magic_colon) |
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429 : rep (new octave_magic_colon ()) |
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430 { |
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431 rep->count = 1; |
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432 } |
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433 |
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434 octave_value::octave_value (octave_value::all_va_args) |
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435 : rep (new octave_all_va_args ()) |
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436 { |
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437 rep->count = 1; |
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438 } |
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439 |
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440 octave_value::octave_value (octave_value *new_rep) |
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441 : rep (new_rep) |
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442 { |
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443 rep->count = 1; |
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444 } |
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445 |
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446 octave_value::~octave_value (void) |
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447 { |
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448 #if defined (MDEBUG) |
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449 cerr << "~octave_value: rep: " << rep |
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450 << " rep->count: " << rep->count << "\n"; |
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451 #endif |
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452 |
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453 if (rep && --rep->count == 0) |
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454 { |
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455 delete rep; |
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456 rep = 0; |
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457 } |
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458 } |
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459 |
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460 octave_value * |
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461 octave_value::clone (void) |
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462 { |
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463 panic_impossible (); |
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464 } |
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465 |
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466 void |
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467 octave_value::maybe_mutate (void) |
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468 { |
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469 octave_value *tmp = rep->try_narrowing_conversion (); |
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470 |
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471 if (tmp && tmp != rep) |
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472 { |
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473 if (--rep->count == 0) |
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474 delete rep; |
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475 |
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476 rep = tmp; |
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477 rep->count = 1; |
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478 } |
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479 } |
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480 |
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481 static void |
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482 gripe_no_conversion (const string& tn1, const string& tn2) |
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483 { |
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484 error ("no suitable conversion found for assignment of `%s' to indexed `%s'", |
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485 tn2.c_str (), tn1.c_str ()); |
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486 } |
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487 |
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488 octave_value& |
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489 octave_value::assign (assign_op, const octave_value& rhs) |
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490 { |
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491 // XXX FIXME XXX -- make this work for ops other than `='. |
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492 |
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493 return operator = (rhs); |
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494 } |
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495 |
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496 octave_value& |
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497 octave_value::assign (octave_value::assign_op op, |
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498 const octave_value_list& idx, |
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499 const octave_value& rhs) |
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500 { |
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501 make_unique (); |
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502 |
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503 bool assignment_ok = try_assignment (op, idx, rhs); |
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504 |
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505 if (! (error_state || assignment_ok)) |
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506 { |
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2880
|
507 assignment_ok = try_assignment_with_conversion (op,idx, rhs); |
|
2409
|
508 |
|
|
509 if (! (error_state || assignment_ok)) |
|
2376
|
510 gripe_no_conversion (type_name (), rhs.type_name ()); |
|
|
511 } |
|
|
512 |
|
2409
|
513 if (! error_state) |
|
|
514 maybe_mutate (); |
|
|
515 |
|
2376
|
516 return *this; |
|
|
517 } |
|
|
518 |
|
2891
|
519 octave_value_list |
|
|
520 octave_value::eval (int, const octave_value_list& idx) |
|
|
521 { |
|
|
522 return (idx.length () > 0) ? index (idx) : *this; |
|
|
523 } |
|
|
524 |
|
2376
|
525 Octave_map |
|
|
526 octave_value::map_value (void) const |
|
|
527 { |
|
|
528 return rep->map_value (); |
|
|
529 } |
|
|
530 |
|
2903
|
531 octave_stream * |
|
|
532 octave_value::stream_value (void) const |
|
|
533 { |
|
|
534 return rep->stream_value (); |
|
|
535 } |
|
|
536 |
|
|
537 int |
|
|
538 octave_value::stream_number (void) const |
|
|
539 { |
|
|
540 return rep->stream_number (); |
|
|
541 } |
|
|
542 |
|
2880
|
543 octave_value_list |
|
|
544 octave_value::list_value (void) const |
|
|
545 { |
|
|
546 return rep->list_value (); |
|
|
547 } |
|
|
548 |
|
2376
|
549 ColumnVector |
|
|
550 octave_value::vector_value (bool force_string_conv, |
|
|
551 bool force_vector_conversion) const |
|
|
552 { |
|
|
553 ColumnVector retval; |
|
|
554 |
|
|
555 Matrix m = matrix_value (force_string_conv); |
|
|
556 |
|
|
557 if (error_state) |
|
|
558 return retval; |
|
|
559 |
|
|
560 int nr = m.rows (); |
|
|
561 int nc = m.columns (); |
|
|
562 |
|
|
563 if (nr == 1) |
|
|
564 { |
|
|
565 retval.resize (nc); |
|
|
566 for (int i = 0; i < nc; i++) |
|
|
567 retval (i) = m (0, i); |
|
|
568 } |
|
|
569 else if (nc == 1) |
|
|
570 { |
|
|
571 retval.resize (nr); |
|
|
572 for (int i = 0; i < nr; i++) |
|
|
573 retval (i) = m (i, 0); |
|
|
574 } |
|
|
575 else if (nr > 0 && nc > 0 |
|
|
576 && (Vdo_fortran_indexing || force_vector_conversion)) |
|
|
577 { |
|
|
578 retval.resize (nr * nc); |
|
|
579 int k = 0; |
|
|
580 for (int j = 0; j < nc; j++) |
|
|
581 for (int i = 0; i < nr; i++) |
|
|
582 retval (k++) = m (i, j); |
|
|
583 } |
|
|
584 else |
|
|
585 { |
|
|
586 string tn = type_name (); |
|
|
587 gripe_invalid_conversion (tn.c_str (), "real vector"); |
|
|
588 } |
|
|
589 |
|
|
590 return retval; |
|
|
591 } |
|
|
592 |
|
|
593 ComplexColumnVector |
|
|
594 octave_value::complex_vector_value (bool force_string_conv, |
|
|
595 bool force_vector_conversion) const |
|
|
596 { |
|
|
597 ComplexColumnVector retval; |
|
|
598 |
|
|
599 ComplexMatrix m = complex_matrix_value (force_string_conv); |
|
|
600 |
|
|
601 if (error_state) |
|
|
602 return retval; |
|
|
603 |
|
|
604 int nr = m.rows (); |
|
|
605 int nc = m.columns (); |
|
|
606 |
|
|
607 if (nr == 1) |
|
|
608 { |
|
|
609 retval.resize (nc); |
|
|
610 for (int i = 0; i < nc; i++) |
|
|
611 retval (i) = m (0, i); |
|
|
612 } |
|
|
613 else if (nc == 1) |
|
|
614 { |
|
|
615 retval.resize (nr); |
|
|
616 for (int i = 0; i < nr; i++) |
|
|
617 retval (i) = m (i, 0); |
|
|
618 } |
|
|
619 else if (nr > 0 && nc > 0 |
|
|
620 && (Vdo_fortran_indexing || force_vector_conversion)) |
|
|
621 { |
|
|
622 retval.resize (nr * nc); |
|
|
623 int k = 0; |
|
|
624 for (int j = 0; j < nc; j++) |
|
|
625 for (int i = 0; i < nr; i++) |
|
|
626 retval (k++) = m (i, j); |
|
|
627 } |
|
|
628 else |
|
|
629 { |
|
|
630 string tn = type_name (); |
|
|
631 gripe_invalid_conversion (tn.c_str (), "complex vector"); |
|
|
632 } |
|
|
633 |
|
|
634 return retval; |
|
|
635 } |
|
|
636 |
|
|
637 void |
|
|
638 octave_value::print_with_name (ostream& output_buf, const string& name, |
|
2903
|
639 bool print_padding) const |
|
2376
|
640 { |
|
2903
|
641 bool pad_after = print_name_tag (output_buf, name); |
|
2376
|
642 |
|
|
643 print (output_buf); |
|
|
644 |
|
|
645 if (print_padding && pad_after) |
|
2903
|
646 newline (output_buf); |
|
2376
|
647 } |
|
|
648 |
|
|
649 static void |
|
2413
|
650 gripe_indexed_assignment (const string& tn1, const string& tn2) |
|
|
651 { |
|
2903
|
652 error ("assignment of `%s' to indexed `%s' not implemented", |
|
2413
|
653 tn2.c_str (), tn1.c_str ()); |
|
|
654 } |
|
|
655 |
|
|
656 static void |
|
|
657 gripe_conversion_failed (const string& tn1, const string& tn2) |
|
|
658 { |
|
2903
|
659 error ("type conversion for assignment of `%s' to indexed `%s' failed", |
|
2413
|
660 tn2.c_str (), tn1.c_str ()); |
|
|
661 } |
|
|
662 |
|
|
663 bool |
|
2880
|
664 octave_value::convert_and_assign (octave_value::assign_op op, |
|
|
665 const octave_value_list& idx, |
|
2413
|
666 const octave_value& rhs) |
|
|
667 { |
|
|
668 bool assignment_ok = false; |
|
|
669 |
|
|
670 int t_lhs = type_id (); |
|
|
671 int t_rhs = rhs.type_id (); |
|
|
672 |
|
|
673 int t_result |
|
|
674 = octave_value_typeinfo::lookup_pref_assign_conv (t_lhs, t_rhs); |
|
|
675 |
|
|
676 if (t_result >= 0) |
|
|
677 { |
|
2427
|
678 type_conv_fcn cf |
|
2413
|
679 = octave_value_typeinfo::lookup_widening_op (t_lhs, t_result); |
|
|
680 |
|
|
681 if (cf) |
|
|
682 { |
|
|
683 octave_value *tmp = cf (*rep); |
|
|
684 |
|
|
685 if (tmp) |
|
|
686 { |
|
2589
|
687 octave_value *old_rep = rep; |
|
|
688 rep = tmp; |
|
|
689 rep->count = 1; |
|
|
690 |
|
2880
|
691 assignment_ok = try_assignment (op, idx, rhs); |
|
2589
|
692 |
|
|
693 if (! assignment_ok && old_rep) |
|
2413
|
694 { |
|
|
695 if (--rep->count == 0) |
|
|
696 delete rep; |
|
|
697 |
|
2589
|
698 rep = old_rep; |
|
|
699 old_rep = 0; |
|
2413
|
700 } |
|
|
701 |
|
2589
|
702 if (old_rep && --old_rep->count == 0) |
|
|
703 delete old_rep; |
|
2413
|
704 } |
|
|
705 else |
|
|
706 gripe_conversion_failed (type_name (), rhs.type_name ()); |
|
|
707 } |
|
|
708 else |
|
|
709 gripe_indexed_assignment (type_name (), rhs.type_name ()); |
|
|
710 } |
|
|
711 |
|
|
712 return (assignment_ok && ! error_state); |
|
|
713 } |
|
|
714 |
|
|
715 bool |
|
2880
|
716 octave_value::try_assignment_with_conversion (octave_value::assign_op op, |
|
|
717 const octave_value_list& idx, |
|
2413
|
718 const octave_value& rhs) |
|
|
719 { |
|
2880
|
720 bool assignment_ok = convert_and_assign (op, idx, rhs); |
|
2413
|
721 |
|
|
722 if (! (error_state || assignment_ok)) |
|
|
723 { |
|
|
724 octave_value tmp_rhs; |
|
2427
|
725 type_conv_fcn cf_rhs = rhs.numeric_conversion_function (); |
|
2413
|
726 |
|
|
727 if (cf_rhs) |
|
|
728 tmp_rhs = octave_value (cf_rhs (*rhs.rep)); |
|
|
729 else |
|
|
730 tmp_rhs = rhs; |
|
|
731 |
|
|
732 octave_value *old_rep = 0; |
|
2427
|
733 type_conv_fcn cf_this = numeric_conversion_function (); |
|
2413
|
734 |
|
|
735 if (cf_this) |
|
|
736 { |
|
|
737 old_rep = rep; |
|
|
738 rep = cf_this (*rep); |
|
|
739 rep->count = 1; |
|
|
740 } |
|
|
741 |
|
|
742 if (cf_this || cf_rhs) |
|
|
743 { |
|
2880
|
744 assignment_ok = try_assignment (op, idx, tmp_rhs); |
|
2413
|
745 |
|
|
746 if (! (error_state || assignment_ok)) |
|
2880
|
747 assignment_ok = convert_and_assign (op, idx, tmp_rhs); |
|
2413
|
748 } |
|
|
749 |
|
|
750 if (! assignment_ok && old_rep) |
|
|
751 { |
|
|
752 if (--rep->count == 0) |
|
|
753 delete rep; |
|
|
754 |
|
|
755 rep = old_rep; |
|
|
756 old_rep = 0; |
|
|
757 } |
|
|
758 |
|
|
759 if (old_rep && --old_rep->count == 0) |
|
|
760 delete old_rep; |
|
|
761 } |
|
|
762 |
|
|
763 return (assignment_ok && ! error_state); |
|
|
764 } |
|
|
765 |
|
|
766 bool |
|
2880
|
767 octave_value::try_assignment (octave_value::assign_op op, |
|
|
768 const octave_value_list& idx, |
|
2413
|
769 const octave_value& rhs) |
|
|
770 { |
|
|
771 bool retval = false; |
|
|
772 |
|
|
773 int t_lhs = type_id (); |
|
|
774 int t_rhs = rhs.type_id (); |
|
|
775 |
|
2880
|
776 assign_op_fcn f |
|
|
777 = octave_value_typeinfo::lookup_assign_op (op, t_lhs, t_rhs); |
|
2413
|
778 |
|
|
779 if (f) |
|
|
780 { |
|
|
781 f (*rep, idx, *(rhs.rep)); |
|
|
782 |
|
|
783 retval = (! error_state); |
|
|
784 } |
|
|
785 |
|
|
786 return retval; |
|
|
787 } |
|
|
788 |
|
|
789 static void |
|
2376
|
790 gripe_binary_op (const string& on, const string& tn1, const string& tn2) |
|
|
791 { |
|
2903
|
792 error ("binary operator `%s' not implemented for `%s' by `%s' operations", |
|
2376
|
793 on.c_str (), tn1.c_str (), tn2.c_str ()); |
|
|
794 } |
|
|
795 |
|
|
796 octave_value |
|
|
797 do_binary_op (octave_value::binary_op op, const octave_value& v1, |
|
|
798 const octave_value& v2) |
|
|
799 { |
|
|
800 octave_value retval; |
|
|
801 |
|
|
802 int t1 = v1.type_id (); |
|
|
803 int t2 = v2.type_id (); |
|
|
804 |
|
2427
|
805 binary_op_fcn f = octave_value_typeinfo::lookup_binary_op (op, t1, t2); |
|
2376
|
806 |
|
|
807 if (f) |
|
|
808 retval = f (*v1.rep, *v2.rep); |
|
|
809 else |
|
|
810 { |
|
|
811 octave_value tv1; |
|
2427
|
812 type_conv_fcn cf1 = v1.numeric_conversion_function (); |
|
2376
|
813 |
|
|
814 if (cf1) |
|
|
815 { |
|
|
816 tv1 = octave_value (cf1 (*v1.rep)); |
|
|
817 t1 = tv1.type_id (); |
|
|
818 } |
|
|
819 else |
|
|
820 tv1 = v1; |
|
|
821 |
|
|
822 octave_value tv2; |
|
2427
|
823 type_conv_fcn cf2 = v2.numeric_conversion_function (); |
|
2376
|
824 |
|
|
825 if (cf2) |
|
|
826 { |
|
|
827 tv2 = octave_value (cf2 (*v2.rep)); |
|
|
828 t2 = tv2.type_id (); |
|
|
829 } |
|
|
830 else |
|
|
831 tv2 = v2; |
|
|
832 |
|
|
833 if (cf1 || cf2) |
|
|
834 { |
|
2427
|
835 binary_op_fcn f |
|
2376
|
836 = octave_value_typeinfo::lookup_binary_op (op, t1, t2); |
|
|
837 |
|
|
838 if (f) |
|
|
839 retval = f (*tv1.rep, *tv2.rep); |
|
|
840 else |
|
|
841 gripe_binary_op (octave_value::binary_op_as_string (op), |
|
|
842 v1.type_name (), v2.type_name ()); |
|
|
843 } |
|
|
844 else |
|
|
845 gripe_binary_op (octave_value::binary_op_as_string (op), |
|
|
846 v1.type_name (), v2.type_name ()); |
|
|
847 } |
|
|
848 |
|
|
849 return retval; |
|
|
850 } |
|
|
851 |
|
2903
|
852 // Current indentation. |
|
|
853 int octave_value::curr_print_indent_level = 0; |
|
|
854 |
|
|
855 // Nonzero means we are at the beginning of a line. |
|
|
856 bool octave_value::beginning_of_line = true; |
|
|
857 |
|
|
858 // Each print() function should call this before printing anything. |
|
|
859 // |
|
|
860 // This doesn't need to be fast, but isn't there a better way? |
|
|
861 |
|
|
862 void |
|
|
863 octave_value::indent (ostream& os) const |
|
|
864 { |
|
|
865 assert (curr_print_indent_level >= 0); |
|
|
866 |
|
|
867 if (beginning_of_line) |
|
|
868 { |
|
|
869 // XXX FIXME XXX -- do we need this? |
|
|
870 // os << prefix; |
|
|
871 |
|
|
872 for (int i = 0; i < curr_print_indent_level; i++) |
|
|
873 os << " "; |
|
|
874 |
|
|
875 beginning_of_line = false; |
|
|
876 } |
|
|
877 } |
|
|
878 |
|
|
879 // All print() functions should use this to print new lines. |
|
|
880 |
|
|
881 void |
|
|
882 octave_value::newline (ostream& os) const |
|
|
883 { |
|
|
884 os << "\n"; |
|
|
885 |
|
|
886 beginning_of_line = true; |
|
|
887 } |
|
|
888 |
|
|
889 // For ressetting print state. |
|
|
890 |
|
|
891 void |
|
|
892 octave_value::reset (void) const |
|
|
893 { |
|
|
894 beginning_of_line = true; |
|
|
895 curr_print_indent_level = 0; |
|
|
896 } |
|
|
897 |
|
2376
|
898 void |
|
|
899 install_types (void) |
|
|
900 { |
|
|
901 octave_base_value::register_type (); |
|
|
902 octave_scalar::register_type (); |
|
|
903 octave_complex::register_type (); |
|
|
904 octave_matrix::register_type (); |
|
|
905 octave_complex_matrix::register_type (); |
|
|
906 octave_range::register_type (); |
|
2825
|
907 octave_bool::register_type (); |
|
|
908 octave_bool_matrix::register_type (); |
|
2376
|
909 octave_char_matrix::register_type (); |
|
|
910 octave_char_matrix_str::register_type (); |
|
|
911 octave_struct::register_type (); |
|
2903
|
912 octave_file::register_type (); |
|
2880
|
913 octave_list::register_type (); |
|
2376
|
914 octave_all_va_args::register_type (); |
|
|
915 octave_magic_colon::register_type (); |
|
|
916 } |
|
|
917 |
|
|
918 static int |
|
|
919 do_fortran_indexing (void) |
|
|
920 { |
|
|
921 Vdo_fortran_indexing = check_preference ("do_fortran_indexing"); |
|
|
922 |
|
|
923 liboctave_dfi_flag = Vdo_fortran_indexing; |
|
|
924 |
|
|
925 return 0; |
|
|
926 } |
|
|
927 |
|
|
928 static int |
|
|
929 implicit_str_to_num_ok (void) |
|
|
930 { |
|
|
931 Vimplicit_str_to_num_ok = check_preference ("implicit_str_to_num_ok"); |
|
|
932 |
|
|
933 return 0; |
|
|
934 } |
|
|
935 |
|
|
936 static int |
|
|
937 ok_to_lose_imaginary_part (void) |
|
|
938 { |
|
|
939 Vok_to_lose_imaginary_part = check_preference ("ok_to_lose_imaginary_part"); |
|
|
940 |
|
|
941 return 0; |
|
|
942 } |
|
|
943 |
|
|
944 static int |
|
|
945 prefer_column_vectors (void) |
|
|
946 { |
|
|
947 Vprefer_column_vectors |
|
|
948 = check_preference ("prefer_column_vectors"); |
|
|
949 |
|
|
950 liboctave_pcv_flag = Vprefer_column_vectors; |
|
|
951 |
|
|
952 return 0; |
|
|
953 } |
|
|
954 |
|
|
955 static int |
|
|
956 print_answer_id_name (void) |
|
|
957 { |
|
|
958 Vprint_answer_id_name = check_preference ("print_answer_id_name"); |
|
|
959 |
|
|
960 return 0; |
|
|
961 } |
|
|
962 |
|
|
963 static int |
|
|
964 propagate_empty_matrices (void) |
|
|
965 { |
|
|
966 Vpropagate_empty_matrices = check_preference ("propagate_empty_matrices"); |
|
|
967 |
|
|
968 return 0; |
|
|
969 } |
|
|
970 |
|
|
971 static int |
|
|
972 resize_on_range_error (void) |
|
|
973 { |
|
|
974 Vresize_on_range_error = check_preference ("resize_on_range_error"); |
|
|
975 |
|
|
976 liboctave_rre_flag = Vresize_on_range_error; |
|
|
977 |
|
|
978 return 0; |
|
|
979 } |
|
|
980 |
|
|
981 static int |
|
|
982 struct_levels_to_print (void) |
|
|
983 { |
|
|
984 double val; |
|
|
985 if (builtin_real_scalar_variable ("struct_levels_to_print", val) |
|
|
986 && ! xisnan (val)) |
|
|
987 { |
|
|
988 int ival = NINT (val); |
|
2800
|
989 if (ival >= 0 && ival == val) |
|
2376
|
990 { |
|
|
991 Vstruct_levels_to_print = ival; |
|
|
992 return 0; |
|
|
993 } |
|
|
994 } |
|
|
995 gripe_invalid_value_specified ("struct_levels_to_print"); |
|
|
996 return -1; |
|
|
997 } |
|
|
998 |
|
|
999 static int |
|
|
1000 warn_divide_by_zero (void) |
|
|
1001 { |
|
|
1002 Vwarn_divide_by_zero = check_preference ("warn_divide_by_zero"); |
|
|
1003 |
|
|
1004 return 0; |
|
|
1005 } |
|
|
1006 |
|
|
1007 void |
|
2909
|
1008 symbols_of_ov (void) |
|
2376
|
1009 { |
|
|
1010 DEFVAR (do_fortran_indexing, 0.0, 0, do_fortran_indexing, |
|
|
1011 "allow single indices for matrices"); |
|
|
1012 |
|
|
1013 DEFVAR (implicit_str_to_num_ok, 0.0, 0, implicit_str_to_num_ok, |
|
|
1014 "allow implicit string to number conversion"); |
|
|
1015 |
|
|
1016 DEFVAR (ok_to_lose_imaginary_part, "warn", 0, ok_to_lose_imaginary_part, |
|
|
1017 "silently convert from complex to real by dropping imaginary part"); |
|
|
1018 |
|
|
1019 DEFVAR (prefer_column_vectors, 1.0, 0, prefer_column_vectors, |
|
|
1020 "prefer column/row vectors"); |
|
|
1021 |
|
|
1022 DEFVAR (print_answer_id_name, 1.0, 0, print_answer_id_name, |
|
|
1023 "set output style to print `var_name = ...'"); |
|
|
1024 |
|
|
1025 DEFVAR (propagate_empty_matrices, 1.0, 0, propagate_empty_matrices, |
|
|
1026 "operations on empty matrices return an empty matrix, not an error"); |
|
|
1027 |
|
|
1028 DEFVAR (resize_on_range_error, 1.0, 0, resize_on_range_error, |
|
|
1029 "enlarge matrices on assignment"); |
|
|
1030 |
|
|
1031 DEFVAR (struct_levels_to_print, 2.0, 0, struct_levels_to_print, |
|
|
1032 "number of levels of structure elements to print"); |
|
|
1033 |
|
|
1034 DEFVAR (warn_divide_by_zero, 1.0, 0, warn_divide_by_zero, |
|
|
1035 "If TRUE, warn about division by zero"); |
|
|
1036 } |
|
|
1037 |
|
|
1038 /* |
|
|
1039 ;;; Local Variables: *** |
|
|
1040 ;;; mode: C++ *** |
|
|
1041 ;;; End: *** |
|
|
1042 */ |
