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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-file.h" |
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46 #include "ov-list.h" |
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47 #include "ov-colon.h" |
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48 #include "ov-va-args.h" |
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49 #include "ov-typeinfo.h" |
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50 |
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51 #include "defun.h" |
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52 #include "error.h" |
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53 #include "gripes.h" |
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54 #include "pager.h" |
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55 #include "pr-output.h" |
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56 #include "utils.h" |
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57 #include "variables.h" |
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58 |
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59 // We are likely to have a lot of octave_value objects to allocate, so |
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60 // make the grow_size large. |
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61 octave_allocator |
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62 octave_value::allocator (sizeof (octave_value), 1024); |
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63 |
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64 // If TRUE, allow assignments like |
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65 // |
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66 // octave> A(1) = 3; A(2) = 5 |
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67 // |
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68 // for A already defined and a matrix type. |
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69 bool Vdo_fortran_indexing; |
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70 |
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71 // Should we allow things like: |
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72 // |
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73 // octave> 'abc' + 0 |
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74 // 97 98 99 |
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75 // |
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76 // to happen? A positive value means yes. A negative value means |
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77 // yes, but print a warning message. Zero means it should be |
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78 // considered an error. |
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79 int Vimplicit_str_to_num_ok; |
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80 |
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81 // Should we allow silent conversion of complex to real when a real |
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82 // type is what we're really looking for? A positive value means yes. |
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83 // A negative value means yes, but print a warning message. Zero |
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84 // means it should be considered an error. |
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85 int Vok_to_lose_imaginary_part; |
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86 |
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87 // If TRUE, create column vectors when doing assignments like: |
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88 // |
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89 // octave> A(1) = 3; A(2) = 5 |
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90 // |
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91 // (for A undefined). Only matters when resize_on_range_error is also |
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92 // TRUE. |
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93 bool Vprefer_column_vectors; |
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94 |
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95 // If TRUE, print the name along with the value. |
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96 bool Vprint_answer_id_name; |
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97 |
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98 // Should operations on empty matrices return empty matrices or an |
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99 // error? A positive value means yes. A negative value means yes, |
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100 // but print a warning message. Zero means it should be considered an |
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101 // error. |
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102 int Vpropagate_empty_matrices; |
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103 |
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104 // If TRUE, resize matrices when performing and indexed assignment and |
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105 // the indices are outside the current bounds. |
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106 bool Vresize_on_range_error; |
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107 |
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108 // How many levels of structure elements should we print? |
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109 int Vstruct_levels_to_print; |
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110 |
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111 // Allow divide by zero errors to be suppressed. |
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112 bool Vwarn_divide_by_zero; |
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113 |
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114 // XXX FIXME XXX |
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115 |
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116 // Octave's value type. |
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117 |
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118 string |
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119 octave_value::binary_op_as_string (binary_op op) |
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120 { |
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121 string retval; |
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122 |
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123 switch (op) |
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124 { |
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125 case add: |
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126 retval = "+"; |
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127 break; |
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128 |
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129 case sub: |
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130 retval = "-"; |
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131 break; |
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132 |
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133 case mul: |
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134 retval = "*"; |
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135 break; |
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136 |
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137 case div: |
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138 retval = "/"; |
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139 break; |
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140 |
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141 case pow: |
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142 retval = "^"; |
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143 break; |
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144 |
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145 case ldiv: |
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146 retval = "\\"; |
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147 break; |
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148 |
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149 case lshift: |
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150 retval = "<<"; |
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151 break; |
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152 |
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153 case rshift: |
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154 retval = ">>"; |
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155 break; |
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156 |
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157 case lt: |
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158 retval = "<"; |
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159 break; |
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160 |
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161 case le: |
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162 retval = "<="; |
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163 break; |
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164 |
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165 case eq: |
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166 retval = "=="; |
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167 break; |
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168 |
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169 case ge: |
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170 retval = ">="; |
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171 break; |
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172 |
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173 case gt: |
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174 retval = ">"; |
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175 break; |
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176 |
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177 case ne: |
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178 retval = "!="; |
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179 break; |
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180 |
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181 case el_mul: |
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182 retval = ".*"; |
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183 break; |
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184 |
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185 case el_div: |
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186 retval = "./"; |
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187 break; |
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188 |
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189 case el_pow: |
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190 retval = ".^"; |
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191 break; |
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192 |
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193 case el_ldiv: |
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194 retval = ".\\"; |
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195 break; |
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196 |
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197 case el_and: |
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198 retval = "&"; |
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199 break; |
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200 |
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201 case el_or: |
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202 retval = "|"; |
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203 break; |
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204 |
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205 case struct_ref: |
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206 retval = "."; |
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207 break; |
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208 |
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209 default: |
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210 retval = "<unknown>"; |
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211 } |
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212 |
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213 return retval; |
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214 } |
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215 |
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216 string |
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217 octave_value::assign_op_as_string (assign_op op) |
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218 { |
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219 string retval; |
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220 |
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221 switch (op) |
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222 { |
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223 case asn_eq: |
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224 retval = "="; |
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225 break; |
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226 |
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227 case add_eq: |
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228 retval = "+="; |
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229 break; |
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230 |
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231 case sub_eq: |
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232 retval = "-="; |
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233 break; |
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234 |
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235 case mul_eq: |
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236 retval = "*="; |
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237 break; |
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238 |
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239 case div_eq: |
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240 retval = "/="; |
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241 break; |
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242 |
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243 case lshift_eq: |
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244 retval = "<<="; |
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245 break; |
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246 |
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247 case rshift_eq: |
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248 retval = ">>="; |
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249 break; |
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250 |
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251 case el_mul_eq: |
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252 retval = ".*="; |
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253 break; |
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254 |
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255 case el_div_eq: |
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256 retval = "./="; |
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257 break; |
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258 |
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259 case el_and_eq: |
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260 retval = "&="; |
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261 break; |
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262 |
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263 case el_or_eq: |
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264 retval = "|="; |
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265 break; |
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266 |
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267 default: |
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268 retval = "<unknown>"; |
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269 } |
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270 |
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271 return retval; |
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272 } |
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273 |
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274 octave_value::octave_value (void) |
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275 : rep (new octave_base_value ()) |
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276 { |
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277 rep->count = 1; |
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278 } |
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279 |
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280 octave_value::octave_value (double d) |
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281 : rep (new octave_scalar (d)) |
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282 { |
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283 rep->count = 1; |
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284 } |
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285 |
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286 octave_value::octave_value (const Matrix& m) |
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287 : rep (new octave_matrix (m)) |
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288 { |
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289 rep->count = 1; |
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290 maybe_mutate (); |
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291 } |
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292 |
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293 octave_value::octave_value (const DiagMatrix& d) |
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294 : rep (new octave_matrix (d)) |
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295 { |
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296 rep->count = 1; |
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297 maybe_mutate (); |
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298 } |
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299 |
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300 octave_value::octave_value (const RowVector& v, int pcv) |
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301 : rep (new octave_matrix (v, pcv)) |
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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 ColumnVector& v, int pcv) |
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308 : rep (new octave_matrix (v, pcv)) |
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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 Complex& C) |
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315 : rep (new octave_complex (C)) |
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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 ComplexMatrix& m) |
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322 : rep (new octave_complex_matrix (m)) |
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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 ComplexDiagMatrix& d) |
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329 : rep (new octave_complex_matrix (d)) |
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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 ComplexRowVector& v, int pcv) |
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336 : rep (new octave_complex_matrix (v, pcv)) |
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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 ComplexColumnVector& v, int pcv) |
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343 : rep (new octave_complex_matrix (v, pcv)) |
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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 (bool b) |
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350 : rep (new octave_bool (b)) |
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351 { |
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352 rep->count = 1; |
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353 } |
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354 |
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355 octave_value::octave_value (const boolMatrix& bm) |
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356 : rep (new octave_bool_matrix (bm)) |
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357 { |
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358 rep->count = 1; |
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359 maybe_mutate (); |
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360 } |
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361 |
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362 octave_value::octave_value (const char *s) |
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363 : rep (new octave_char_matrix_str (s)) |
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364 { |
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365 rep->count = 1; |
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366 maybe_mutate (); |
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367 } |
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368 |
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369 octave_value::octave_value (const string& s) |
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370 : rep (new octave_char_matrix_str (s)) |
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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 string_vector& 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 charMatrix& chm, bool is_string) |
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384 : rep (0) |
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385 { |
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386 if (is_string) |
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387 rep = new octave_char_matrix_str (chm); |
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388 else |
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389 rep = new octave_char_matrix (chm); |
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390 |
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391 rep->count = 1; |
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392 maybe_mutate (); |
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393 } |
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394 |
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395 octave_value::octave_value (double base, double limit, double inc) |
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396 : rep (new octave_range (base, limit, inc)) |
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397 { |
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398 rep->count = 1; |
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399 maybe_mutate (); |
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400 } |
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401 |
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402 octave_value::octave_value (const Range& r) |
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403 : rep (new octave_range (r)) |
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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 (const Octave_map& m) |
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410 : rep (new octave_struct (m)) |
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411 { |
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412 rep->count = 1; |
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413 } |
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414 |
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415 octave_value::octave_value (octave_stream *s, int n) |
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416 : rep (new octave_file (s, n)) |
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417 { |
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418 rep->count = 1; |
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419 } |
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420 |
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421 octave_value::octave_value (const octave_value_list& l) |
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422 : rep (new octave_list (l)) |
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423 { |
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424 rep->count = 1; |
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425 } |
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426 |
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427 octave_value::octave_value (octave_value::magic_colon) |
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428 : rep (new octave_magic_colon ()) |
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429 { |
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430 rep->count = 1; |
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431 } |
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432 |
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433 octave_value::octave_value (octave_value::all_va_args) |
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434 : rep (new octave_all_va_args ()) |
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435 { |
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436 rep->count = 1; |
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437 } |
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438 |
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439 octave_value::octave_value (octave_value *new_rep) |
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440 : rep (new_rep) |
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441 { |
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442 rep->count = 1; |
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443 } |
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444 |
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445 octave_value::~octave_value (void) |
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446 { |
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447 #if defined (MDEBUG) |
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448 cerr << "~octave_value: rep: " << rep |
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449 << " rep->count: " << rep->count << "\n"; |
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450 #endif |
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451 |
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452 if (rep && --rep->count == 0) |
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453 { |
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454 delete rep; |
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455 rep = 0; |
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456 } |
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457 } |
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458 |
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459 octave_value * |
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460 octave_value::clone (void) |
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461 { |
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462 panic_impossible (); |
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463 } |
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464 |
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465 void |
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466 octave_value::maybe_mutate (void) |
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467 { |
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468 octave_value *tmp = rep->try_narrowing_conversion (); |
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469 |
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470 if (tmp && tmp != rep) |
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471 { |
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472 if (--rep->count == 0) |
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473 delete rep; |
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474 |
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475 rep = tmp; |
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476 rep->count = 1; |
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477 } |
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478 } |
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479 |
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480 static void |
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481 gripe_no_conversion (const string& tn1, const string& tn2) |
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482 { |
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483 error ("no suitable conversion found for assignment of `%s' to indexed `%s'", |
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484 tn2.c_str (), tn1.c_str ()); |
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485 } |
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486 |
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487 octave_value& |
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488 octave_value::assign (assign_op, const octave_value& rhs) |
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489 { |
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490 // XXX FIXME XXX -- make this work for ops other than `='. |
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491 |
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492 return operator = (rhs); |
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493 } |
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494 |
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495 octave_value& |
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496 octave_value::assign (octave_value::assign_op op, |
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497 const octave_value_list& idx, |
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498 const octave_value& rhs) |
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499 { |
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500 make_unique (); |
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501 |
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502 bool assignment_ok = try_assignment (op, idx, rhs); |
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503 |
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504 if (! (error_state || assignment_ok)) |
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505 { |
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506 assignment_ok = try_assignment_with_conversion (op,idx, rhs); |
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|
507 |
|
|
508 if (! (error_state || assignment_ok)) |
|
2376
|
509 gripe_no_conversion (type_name (), rhs.type_name ()); |
|
|
510 } |
|
|
511 |
|
2409
|
512 if (! error_state) |
|
|
513 maybe_mutate (); |
|
|
514 |
|
2376
|
515 return *this; |
|
|
516 } |
|
|
517 |
|
2891
|
518 octave_value_list |
|
|
519 octave_value::eval (int, const octave_value_list& idx) |
|
|
520 { |
|
|
521 return (idx.length () > 0) ? index (idx) : *this; |
|
|
522 } |
|
|
523 |
|
2376
|
524 Octave_map |
|
|
525 octave_value::map_value (void) const |
|
|
526 { |
|
|
527 return rep->map_value (); |
|
|
528 } |
|
|
529 |
|
2903
|
530 octave_stream * |
|
|
531 octave_value::stream_value (void) const |
|
|
532 { |
|
|
533 return rep->stream_value (); |
|
|
534 } |
|
|
535 |
|
|
536 int |
|
|
537 octave_value::stream_number (void) const |
|
|
538 { |
|
|
539 return rep->stream_number (); |
|
|
540 } |
|
|
541 |
|
2880
|
542 octave_value_list |
|
|
543 octave_value::list_value (void) const |
|
|
544 { |
|
|
545 return rep->list_value (); |
|
|
546 } |
|
|
547 |
|
2376
|
548 ColumnVector |
|
|
549 octave_value::vector_value (bool force_string_conv, |
|
|
550 bool force_vector_conversion) const |
|
|
551 { |
|
|
552 ColumnVector retval; |
|
|
553 |
|
|
554 Matrix m = matrix_value (force_string_conv); |
|
|
555 |
|
|
556 if (error_state) |
|
|
557 return retval; |
|
|
558 |
|
|
559 int nr = m.rows (); |
|
|
560 int nc = m.columns (); |
|
|
561 |
|
|
562 if (nr == 1) |
|
|
563 { |
|
|
564 retval.resize (nc); |
|
|
565 for (int i = 0; i < nc; i++) |
|
|
566 retval (i) = m (0, i); |
|
|
567 } |
|
|
568 else if (nc == 1) |
|
|
569 { |
|
|
570 retval.resize (nr); |
|
|
571 for (int i = 0; i < nr; i++) |
|
|
572 retval (i) = m (i, 0); |
|
|
573 } |
|
|
574 else if (nr > 0 && nc > 0 |
|
|
575 && (Vdo_fortran_indexing || force_vector_conversion)) |
|
|
576 { |
|
|
577 retval.resize (nr * nc); |
|
|
578 int k = 0; |
|
|
579 for (int j = 0; j < nc; j++) |
|
|
580 for (int i = 0; i < nr; i++) |
|
|
581 retval (k++) = m (i, j); |
|
|
582 } |
|
|
583 else |
|
|
584 { |
|
|
585 string tn = type_name (); |
|
|
586 gripe_invalid_conversion (tn.c_str (), "real vector"); |
|
|
587 } |
|
|
588 |
|
|
589 return retval; |
|
|
590 } |
|
|
591 |
|
|
592 ComplexColumnVector |
|
|
593 octave_value::complex_vector_value (bool force_string_conv, |
|
|
594 bool force_vector_conversion) const |
|
|
595 { |
|
|
596 ComplexColumnVector retval; |
|
|
597 |
|
|
598 ComplexMatrix m = complex_matrix_value (force_string_conv); |
|
|
599 |
|
|
600 if (error_state) |
|
|
601 return retval; |
|
|
602 |
|
|
603 int nr = m.rows (); |
|
|
604 int nc = m.columns (); |
|
|
605 |
|
|
606 if (nr == 1) |
|
|
607 { |
|
|
608 retval.resize (nc); |
|
|
609 for (int i = 0; i < nc; i++) |
|
|
610 retval (i) = m (0, i); |
|
|
611 } |
|
|
612 else if (nc == 1) |
|
|
613 { |
|
|
614 retval.resize (nr); |
|
|
615 for (int i = 0; i < nr; i++) |
|
|
616 retval (i) = m (i, 0); |
|
|
617 } |
|
|
618 else if (nr > 0 && nc > 0 |
|
|
619 && (Vdo_fortran_indexing || force_vector_conversion)) |
|
|
620 { |
|
|
621 retval.resize (nr * nc); |
|
|
622 int k = 0; |
|
|
623 for (int j = 0; j < nc; j++) |
|
|
624 for (int i = 0; i < nr; i++) |
|
|
625 retval (k++) = m (i, j); |
|
|
626 } |
|
|
627 else |
|
|
628 { |
|
|
629 string tn = type_name (); |
|
|
630 gripe_invalid_conversion (tn.c_str (), "complex vector"); |
|
|
631 } |
|
|
632 |
|
|
633 return retval; |
|
|
634 } |
|
|
635 |
|
|
636 void |
|
|
637 octave_value::print_with_name (ostream& output_buf, const string& name, |
|
2903
|
638 bool print_padding) const |
|
2376
|
639 { |
|
2903
|
640 bool pad_after = print_name_tag (output_buf, name); |
|
2376
|
641 |
|
|
642 print (output_buf); |
|
|
643 |
|
|
644 if (print_padding && pad_after) |
|
2903
|
645 newline (output_buf); |
|
2376
|
646 } |
|
|
647 |
|
|
648 static void |
|
2413
|
649 gripe_indexed_assignment (const string& tn1, const string& tn2) |
|
|
650 { |
|
2903
|
651 error ("assignment of `%s' to indexed `%s' not implemented", |
|
2413
|
652 tn2.c_str (), tn1.c_str ()); |
|
|
653 } |
|
|
654 |
|
|
655 static void |
|
|
656 gripe_conversion_failed (const string& tn1, const string& tn2) |
|
|
657 { |
|
2903
|
658 error ("type conversion for assignment of `%s' to indexed `%s' failed", |
|
2413
|
659 tn2.c_str (), tn1.c_str ()); |
|
|
660 } |
|
|
661 |
|
|
662 bool |
|
2880
|
663 octave_value::convert_and_assign (octave_value::assign_op op, |
|
|
664 const octave_value_list& idx, |
|
2413
|
665 const octave_value& rhs) |
|
|
666 { |
|
|
667 bool assignment_ok = false; |
|
|
668 |
|
|
669 int t_lhs = type_id (); |
|
|
670 int t_rhs = rhs.type_id (); |
|
|
671 |
|
|
672 int t_result |
|
|
673 = octave_value_typeinfo::lookup_pref_assign_conv (t_lhs, t_rhs); |
|
|
674 |
|
|
675 if (t_result >= 0) |
|
|
676 { |
|
2427
|
677 type_conv_fcn cf |
|
2413
|
678 = octave_value_typeinfo::lookup_widening_op (t_lhs, t_result); |
|
|
679 |
|
|
680 if (cf) |
|
|
681 { |
|
|
682 octave_value *tmp = cf (*rep); |
|
|
683 |
|
|
684 if (tmp) |
|
|
685 { |
|
2589
|
686 octave_value *old_rep = rep; |
|
|
687 rep = tmp; |
|
|
688 rep->count = 1; |
|
|
689 |
|
2880
|
690 assignment_ok = try_assignment (op, idx, rhs); |
|
2589
|
691 |
|
|
692 if (! assignment_ok && old_rep) |
|
2413
|
693 { |
|
|
694 if (--rep->count == 0) |
|
|
695 delete rep; |
|
|
696 |
|
2589
|
697 rep = old_rep; |
|
|
698 old_rep = 0; |
|
2413
|
699 } |
|
|
700 |
|
2589
|
701 if (old_rep && --old_rep->count == 0) |
|
|
702 delete old_rep; |
|
2413
|
703 } |
|
|
704 else |
|
|
705 gripe_conversion_failed (type_name (), rhs.type_name ()); |
|
|
706 } |
|
|
707 else |
|
|
708 gripe_indexed_assignment (type_name (), rhs.type_name ()); |
|
|
709 } |
|
|
710 |
|
|
711 return (assignment_ok && ! error_state); |
|
|
712 } |
|
|
713 |
|
|
714 bool |
|
2880
|
715 octave_value::try_assignment_with_conversion (octave_value::assign_op op, |
|
|
716 const octave_value_list& idx, |
|
2413
|
717 const octave_value& rhs) |
|
|
718 { |
|
2880
|
719 bool assignment_ok = convert_and_assign (op, idx, rhs); |
|
2413
|
720 |
|
|
721 if (! (error_state || assignment_ok)) |
|
|
722 { |
|
|
723 octave_value tmp_rhs; |
|
2427
|
724 type_conv_fcn cf_rhs = rhs.numeric_conversion_function (); |
|
2413
|
725 |
|
|
726 if (cf_rhs) |
|
|
727 tmp_rhs = octave_value (cf_rhs (*rhs.rep)); |
|
|
728 else |
|
|
729 tmp_rhs = rhs; |
|
|
730 |
|
|
731 octave_value *old_rep = 0; |
|
2427
|
732 type_conv_fcn cf_this = numeric_conversion_function (); |
|
2413
|
733 |
|
|
734 if (cf_this) |
|
|
735 { |
|
|
736 old_rep = rep; |
|
|
737 rep = cf_this (*rep); |
|
|
738 rep->count = 1; |
|
|
739 } |
|
|
740 |
|
|
741 if (cf_this || cf_rhs) |
|
|
742 { |
|
2880
|
743 assignment_ok = try_assignment (op, idx, tmp_rhs); |
|
2413
|
744 |
|
|
745 if (! (error_state || assignment_ok)) |
|
2880
|
746 assignment_ok = convert_and_assign (op, idx, tmp_rhs); |
|
2413
|
747 } |
|
|
748 |
|
|
749 if (! assignment_ok && old_rep) |
|
|
750 { |
|
|
751 if (--rep->count == 0) |
|
|
752 delete rep; |
|
|
753 |
|
|
754 rep = old_rep; |
|
|
755 old_rep = 0; |
|
|
756 } |
|
|
757 |
|
|
758 if (old_rep && --old_rep->count == 0) |
|
|
759 delete old_rep; |
|
|
760 } |
|
|
761 |
|
|
762 return (assignment_ok && ! error_state); |
|
|
763 } |
|
|
764 |
|
|
765 bool |
|
2880
|
766 octave_value::try_assignment (octave_value::assign_op op, |
|
|
767 const octave_value_list& idx, |
|
2413
|
768 const octave_value& rhs) |
|
|
769 { |
|
|
770 bool retval = false; |
|
|
771 |
|
|
772 int t_lhs = type_id (); |
|
|
773 int t_rhs = rhs.type_id (); |
|
|
774 |
|
2880
|
775 assign_op_fcn f |
|
|
776 = octave_value_typeinfo::lookup_assign_op (op, t_lhs, t_rhs); |
|
2413
|
777 |
|
|
778 if (f) |
|
|
779 { |
|
|
780 f (*rep, idx, *(rhs.rep)); |
|
|
781 |
|
|
782 retval = (! error_state); |
|
|
783 } |
|
|
784 |
|
|
785 return retval; |
|
|
786 } |
|
|
787 |
|
|
788 static void |
|
2376
|
789 gripe_binary_op (const string& on, const string& tn1, const string& tn2) |
|
|
790 { |
|
2903
|
791 error ("binary operator `%s' not implemented for `%s' by `%s' operations", |
|
2376
|
792 on.c_str (), tn1.c_str (), tn2.c_str ()); |
|
|
793 } |
|
|
794 |
|
|
795 octave_value |
|
|
796 do_binary_op (octave_value::binary_op op, const octave_value& v1, |
|
|
797 const octave_value& v2) |
|
|
798 { |
|
|
799 octave_value retval; |
|
|
800 |
|
|
801 int t1 = v1.type_id (); |
|
|
802 int t2 = v2.type_id (); |
|
|
803 |
|
2427
|
804 binary_op_fcn f = octave_value_typeinfo::lookup_binary_op (op, t1, t2); |
|
2376
|
805 |
|
|
806 if (f) |
|
|
807 retval = f (*v1.rep, *v2.rep); |
|
|
808 else |
|
|
809 { |
|
|
810 octave_value tv1; |
|
2427
|
811 type_conv_fcn cf1 = v1.numeric_conversion_function (); |
|
2376
|
812 |
|
|
813 if (cf1) |
|
|
814 { |
|
|
815 tv1 = octave_value (cf1 (*v1.rep)); |
|
|
816 t1 = tv1.type_id (); |
|
|
817 } |
|
|
818 else |
|
|
819 tv1 = v1; |
|
|
820 |
|
|
821 octave_value tv2; |
|
2427
|
822 type_conv_fcn cf2 = v2.numeric_conversion_function (); |
|
2376
|
823 |
|
|
824 if (cf2) |
|
|
825 { |
|
|
826 tv2 = octave_value (cf2 (*v2.rep)); |
|
|
827 t2 = tv2.type_id (); |
|
|
828 } |
|
|
829 else |
|
|
830 tv2 = v2; |
|
|
831 |
|
|
832 if (cf1 || cf2) |
|
|
833 { |
|
2427
|
834 binary_op_fcn f |
|
2376
|
835 = octave_value_typeinfo::lookup_binary_op (op, t1, t2); |
|
|
836 |
|
|
837 if (f) |
|
|
838 retval = f (*tv1.rep, *tv2.rep); |
|
|
839 else |
|
|
840 gripe_binary_op (octave_value::binary_op_as_string (op), |
|
|
841 v1.type_name (), v2.type_name ()); |
|
|
842 } |
|
|
843 else |
|
|
844 gripe_binary_op (octave_value::binary_op_as_string (op), |
|
|
845 v1.type_name (), v2.type_name ()); |
|
|
846 } |
|
|
847 |
|
|
848 return retval; |
|
|
849 } |
|
|
850 |
|
2903
|
851 // Current indentation. |
|
|
852 int octave_value::curr_print_indent_level = 0; |
|
|
853 |
|
|
854 // Nonzero means we are at the beginning of a line. |
|
|
855 bool octave_value::beginning_of_line = true; |
|
|
856 |
|
|
857 // Each print() function should call this before printing anything. |
|
|
858 // |
|
|
859 // This doesn't need to be fast, but isn't there a better way? |
|
|
860 |
|
|
861 void |
|
|
862 octave_value::indent (ostream& os) const |
|
|
863 { |
|
|
864 assert (curr_print_indent_level >= 0); |
|
|
865 |
|
|
866 if (beginning_of_line) |
|
|
867 { |
|
|
868 // XXX FIXME XXX -- do we need this? |
|
|
869 // os << prefix; |
|
|
870 |
|
|
871 for (int i = 0; i < curr_print_indent_level; i++) |
|
|
872 os << " "; |
|
|
873 |
|
|
874 beginning_of_line = false; |
|
|
875 } |
|
|
876 } |
|
|
877 |
|
|
878 // All print() functions should use this to print new lines. |
|
|
879 |
|
|
880 void |
|
|
881 octave_value::newline (ostream& os) const |
|
|
882 { |
|
|
883 os << "\n"; |
|
|
884 |
|
|
885 beginning_of_line = true; |
|
|
886 } |
|
|
887 |
|
|
888 // For ressetting print state. |
|
|
889 |
|
|
890 void |
|
|
891 octave_value::reset (void) const |
|
|
892 { |
|
|
893 beginning_of_line = true; |
|
|
894 curr_print_indent_level = 0; |
|
|
895 } |
|
|
896 |
|
2376
|
897 void |
|
|
898 install_types (void) |
|
|
899 { |
|
|
900 octave_base_value::register_type (); |
|
|
901 octave_scalar::register_type (); |
|
|
902 octave_complex::register_type (); |
|
|
903 octave_matrix::register_type (); |
|
|
904 octave_complex_matrix::register_type (); |
|
|
905 octave_range::register_type (); |
|
2825
|
906 octave_bool::register_type (); |
|
|
907 octave_bool_matrix::register_type (); |
|
2376
|
908 octave_char_matrix::register_type (); |
|
|
909 octave_char_matrix_str::register_type (); |
|
|
910 octave_struct::register_type (); |
|
2903
|
911 octave_file::register_type (); |
|
2880
|
912 octave_list::register_type (); |
|
2376
|
913 octave_all_va_args::register_type (); |
|
|
914 octave_magic_colon::register_type (); |
|
|
915 } |
|
|
916 |
|
|
917 static int |
|
|
918 do_fortran_indexing (void) |
|
|
919 { |
|
|
920 Vdo_fortran_indexing = check_preference ("do_fortran_indexing"); |
|
|
921 |
|
|
922 liboctave_dfi_flag = Vdo_fortran_indexing; |
|
|
923 |
|
|
924 return 0; |
|
|
925 } |
|
|
926 |
|
|
927 static int |
|
|
928 implicit_str_to_num_ok (void) |
|
|
929 { |
|
|
930 Vimplicit_str_to_num_ok = check_preference ("implicit_str_to_num_ok"); |
|
|
931 |
|
|
932 return 0; |
|
|
933 } |
|
|
934 |
|
|
935 static int |
|
|
936 ok_to_lose_imaginary_part (void) |
|
|
937 { |
|
|
938 Vok_to_lose_imaginary_part = check_preference ("ok_to_lose_imaginary_part"); |
|
|
939 |
|
|
940 return 0; |
|
|
941 } |
|
|
942 |
|
|
943 static int |
|
|
944 prefer_column_vectors (void) |
|
|
945 { |
|
|
946 Vprefer_column_vectors |
|
|
947 = check_preference ("prefer_column_vectors"); |
|
|
948 |
|
|
949 liboctave_pcv_flag = Vprefer_column_vectors; |
|
|
950 |
|
|
951 return 0; |
|
|
952 } |
|
|
953 |
|
|
954 static int |
|
|
955 print_answer_id_name (void) |
|
|
956 { |
|
|
957 Vprint_answer_id_name = check_preference ("print_answer_id_name"); |
|
|
958 |
|
|
959 return 0; |
|
|
960 } |
|
|
961 |
|
|
962 static int |
|
|
963 propagate_empty_matrices (void) |
|
|
964 { |
|
|
965 Vpropagate_empty_matrices = check_preference ("propagate_empty_matrices"); |
|
|
966 |
|
|
967 return 0; |
|
|
968 } |
|
|
969 |
|
|
970 static int |
|
|
971 resize_on_range_error (void) |
|
|
972 { |
|
|
973 Vresize_on_range_error = check_preference ("resize_on_range_error"); |
|
|
974 |
|
|
975 liboctave_rre_flag = Vresize_on_range_error; |
|
|
976 |
|
|
977 return 0; |
|
|
978 } |
|
|
979 |
|
|
980 static int |
|
|
981 struct_levels_to_print (void) |
|
|
982 { |
|
|
983 double val; |
|
|
984 if (builtin_real_scalar_variable ("struct_levels_to_print", val) |
|
|
985 && ! xisnan (val)) |
|
|
986 { |
|
|
987 int ival = NINT (val); |
|
2800
|
988 if (ival >= 0 && ival == val) |
|
2376
|
989 { |
|
|
990 Vstruct_levels_to_print = ival; |
|
|
991 return 0; |
|
|
992 } |
|
|
993 } |
|
|
994 gripe_invalid_value_specified ("struct_levels_to_print"); |
|
|
995 return -1; |
|
|
996 } |
|
|
997 |
|
|
998 static int |
|
|
999 warn_divide_by_zero (void) |
|
|
1000 { |
|
|
1001 Vwarn_divide_by_zero = check_preference ("warn_divide_by_zero"); |
|
|
1002 |
|
|
1003 return 0; |
|
|
1004 } |
|
|
1005 |
|
|
1006 void |
|
|
1007 symbols_of_value (void) |
|
|
1008 { |
|
|
1009 DEFVAR (do_fortran_indexing, 0.0, 0, do_fortran_indexing, |
|
|
1010 "allow single indices for matrices"); |
|
|
1011 |
|
|
1012 DEFVAR (implicit_str_to_num_ok, 0.0, 0, implicit_str_to_num_ok, |
|
|
1013 "allow implicit string to number conversion"); |
|
|
1014 |
|
|
1015 DEFVAR (ok_to_lose_imaginary_part, "warn", 0, ok_to_lose_imaginary_part, |
|
|
1016 "silently convert from complex to real by dropping imaginary part"); |
|
|
1017 |
|
|
1018 DEFVAR (prefer_column_vectors, 1.0, 0, prefer_column_vectors, |
|
|
1019 "prefer column/row vectors"); |
|
|
1020 |
|
|
1021 DEFVAR (print_answer_id_name, 1.0, 0, print_answer_id_name, |
|
|
1022 "set output style to print `var_name = ...'"); |
|
|
1023 |
|
|
1024 DEFVAR (propagate_empty_matrices, 1.0, 0, propagate_empty_matrices, |
|
|
1025 "operations on empty matrices return an empty matrix, not an error"); |
|
|
1026 |
|
|
1027 DEFVAR (resize_on_range_error, 1.0, 0, resize_on_range_error, |
|
|
1028 "enlarge matrices on assignment"); |
|
|
1029 |
|
|
1030 DEFVAR (struct_levels_to_print, 2.0, 0, struct_levels_to_print, |
|
|
1031 "number of levels of structure elements to print"); |
|
|
1032 |
|
|
1033 DEFVAR (warn_divide_by_zero, 1.0, 0, warn_divide_by_zero, |
|
|
1034 "If TRUE, warn about division by zero"); |
|
|
1035 } |
|
|
1036 |
|
|
1037 /* |
|
|
1038 ;;; Local Variables: *** |
|
|
1039 ;;; mode: C++ *** |
|
|
1040 ;;; End: *** |
|
|
1041 */ |
