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1 /* |
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2 |
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3 Copyright (C) 1996 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include "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-scalar.h" |
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36 #include "ov-re-mat.h" |
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37 #include "ov-complex.h" |
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38 #include "ov-cx-mat.h" |
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39 #include "ov-ch-mat.h" |
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40 #include "ov-str-mat.h" |
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41 #include "ov-range.h" |
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42 #include "ov-struct.h" |
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43 #include "ov-colon.h" |
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44 #include "ov-va-args.h" |
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45 #include "ov-typeinfo.h" |
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46 |
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47 #include "defun.h" |
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48 #include "gripes.h" |
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49 #include "pager.h" |
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50 #include "pr-output.h" |
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51 #include "utils.h" |
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52 #include "variables.h" |
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53 |
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54 // If TRUE, allow assignments like |
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55 // |
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56 // octave> A(1) = 3; A(2) = 5 |
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57 // |
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58 // for A already defined and a matrix type. |
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59 bool Vdo_fortran_indexing; |
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60 |
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61 // Should we allow things like: |
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62 // |
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63 // octave> 'abc' + 0 |
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64 // 97 98 99 |
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65 // |
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66 // to happen? A positive value means yes. A negative value means |
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67 // yes, but print a warning message. Zero means it should be |
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68 // considered an error. |
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69 int Vimplicit_str_to_num_ok; |
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70 |
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71 // Should we allow silent conversion of complex to real when a real |
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72 // type is what we're really looking for? A positive value means yes. |
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73 // A negative value means yes, but print a warning message. Zero |
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74 // means it should be considered an error. |
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75 int Vok_to_lose_imaginary_part; |
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76 |
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77 // If TRUE, create column vectors when doing assignments like: |
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78 // |
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79 // octave> A(1) = 3; A(2) = 5 |
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80 // |
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81 // (for A undefined). Only matters when resize_on_range_error is also |
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82 // TRUE. |
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83 bool Vprefer_column_vectors; |
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84 |
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85 // If TRUE, prefer logical (zore-one) indexing over normal indexing |
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86 // when there is a conflice. For example, given a = [2, 3], the |
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87 // expression a ([1, 1]) would return [2 3] (instead of [2 2], which |
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88 // would be returned if prefer_zero_one_indxing were FALSE). |
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89 bool Vprefer_zero_one_indexing; |
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90 |
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91 // If TRUE, print the name along with the value. |
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92 bool Vprint_answer_id_name; |
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93 |
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94 // Should operations on empty matrices return empty matrices or an |
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95 // error? A positive value means yes. A negative value means yes, |
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96 // but print a warning message. Zero means it should be considered an |
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97 // error. |
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98 int Vpropagate_empty_matrices; |
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99 |
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100 // If TRUE, resize matrices when performing and indexed assignment and |
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101 // the indices are outside the current bounds. |
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102 bool Vresize_on_range_error; |
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103 |
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104 // How many levels of structure elements should we print? |
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105 int Vstruct_levels_to_print; |
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106 |
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107 // Allow divide by zero errors to be suppressed. |
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108 bool Vwarn_divide_by_zero; |
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109 |
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110 // Indentation level for structures. |
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111 int struct_indent = 0; |
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112 |
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113 // XXX FIXME XXX |
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114 void |
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115 increment_struct_indent (void) |
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116 { |
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117 struct_indent += 2; |
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118 } |
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119 |
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120 void |
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121 decrement_struct_indent (void) |
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122 { |
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123 struct_indent -= 2; |
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124 } |
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125 |
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126 // Octave's value type. |
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127 |
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128 string |
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129 octave_value::binary_op_as_string (binary_op op) |
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130 { |
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131 string retval; |
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132 |
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133 switch (op) |
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134 { |
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135 case add: |
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136 retval = "+"; |
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137 break; |
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138 |
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139 case sub: |
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140 retval = "-"; |
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141 break; |
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142 |
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143 case mul: |
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144 retval = "*"; |
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145 break; |
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146 |
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147 case div: |
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148 retval = "/"; |
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149 break; |
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150 |
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151 case pow: |
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152 retval = "^"; |
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153 break; |
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154 |
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155 case ldiv: |
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156 retval = "\\"; |
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157 break; |
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158 |
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159 case lt: |
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160 retval = "<"; |
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161 break; |
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162 |
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163 case le: |
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164 retval = "<="; |
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165 break; |
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166 |
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167 case eq: |
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168 retval = "=="; |
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169 break; |
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170 |
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171 case ge: |
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172 retval = ">="; |
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173 break; |
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174 |
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175 case gt: |
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176 retval = ">"; |
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177 break; |
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178 |
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179 case ne: |
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180 retval = "!="; |
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181 break; |
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182 |
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183 case el_mul: |
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184 retval = ".*"; |
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185 break; |
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186 |
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187 case el_div: |
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188 retval = "./"; |
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189 break; |
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190 |
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191 case el_pow: |
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192 retval = ".^"; |
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193 break; |
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194 |
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195 case el_ldiv: |
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196 retval = ".\\"; |
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197 break; |
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198 |
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199 case el_and: |
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200 retval = "&"; |
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201 break; |
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202 |
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203 case el_or: |
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204 retval = "|"; |
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205 break; |
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206 |
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207 case struct_ref: |
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208 retval = "."; |
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209 break; |
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210 |
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211 default: |
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212 retval = "<unknown>"; |
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213 } |
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214 |
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215 return retval; |
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216 } |
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217 |
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218 octave_value::octave_value (void) |
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219 : rep (new octave_base_value ()) { rep->count = 1; } |
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220 |
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221 octave_value::octave_value (double d) |
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222 : rep (new octave_scalar (d)) { rep->count = 1; } |
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223 |
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224 octave_value::octave_value (const Matrix& m) |
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225 : rep (new octave_matrix (m)) { rep->count = 1; } |
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226 |
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227 octave_value::octave_value (const DiagMatrix& d) |
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228 : rep (new octave_matrix (d)) { rep->count = 1; } |
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229 |
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230 octave_value::octave_value (const RowVector& v, int pcv) |
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231 : rep (new octave_matrix (v, pcv)) { rep->count = 1; } |
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232 |
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233 octave_value::octave_value (const ColumnVector& v, int pcv) |
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234 : rep (new octave_matrix (v, pcv)) { rep->count = 1; } |
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235 |
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236 octave_value::octave_value (const Complex& C) |
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237 : rep (new octave_complex (C)) { rep->count = 1; } |
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238 |
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239 octave_value::octave_value (const ComplexMatrix& m) |
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240 : rep (new octave_complex_matrix (m)) { rep->count = 1; } |
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241 |
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242 octave_value::octave_value (const ComplexDiagMatrix& d) |
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243 : rep (new octave_complex_matrix (d)) { rep->count = 1; } |
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244 |
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245 octave_value::octave_value (const ComplexRowVector& v, int pcv) |
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246 : rep (new octave_complex_matrix (v, pcv)) { rep->count = 1; } |
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247 |
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248 octave_value::octave_value (const ComplexColumnVector& v, int pcv) |
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249 : rep (new octave_complex_matrix (v, pcv)) { rep->count = 1; } |
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250 |
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251 octave_value::octave_value (const char *s) |
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252 : rep (new octave_char_matrix_str (s)) { rep->count = 1; } |
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253 |
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254 octave_value::octave_value (const string& s) |
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255 : rep (new octave_char_matrix_str (s)) { rep->count = 1; } |
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256 |
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257 octave_value::octave_value (const string_vector& s) |
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258 : rep (new octave_char_matrix_str (s)) { rep->count = 1; } |
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259 |
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260 octave_value::octave_value (const charMatrix& chm, bool is_string) |
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261 : rep (0) |
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262 { |
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263 if (is_string) |
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264 rep = new octave_char_matrix_str (chm); |
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265 else |
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266 rep = new octave_char_matrix (chm); |
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267 |
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268 rep->count = 1; |
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269 } |
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270 |
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271 octave_value::octave_value (double base, double limit, double inc) |
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272 : rep (new octave_range (base, limit, inc)) { rep->count = 1; } |
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273 |
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274 octave_value::octave_value (const Range& r) |
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275 : rep (new octave_range (r)) { rep->count = 1; } |
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276 |
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277 octave_value::octave_value (const Octave_map& m) |
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278 : rep (new octave_struct (m)) { rep->count = 1; } |
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279 |
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280 octave_value::octave_value (octave_value::magic_colon) |
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281 : rep (new octave_magic_colon ()) { rep->count = 1; } |
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282 |
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283 octave_value::octave_value (octave_value::all_va_args) |
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284 : rep (new octave_all_va_args ()) { rep->count = 1; } |
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285 |
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286 octave_value::octave_value (octave_value *new_rep) |
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287 : rep (new_rep) { rep->count = 1; } |
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288 |
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289 octave_value::~octave_value (void) |
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290 { |
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291 #if defined (MDEBUG) |
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292 cerr << "~octave_value: rep: " << rep |
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293 << " rep->count: " << rep->count << "\n"; |
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294 #endif |
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295 |
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296 if (rep && --rep->count == 0) |
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297 { |
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298 delete rep; |
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299 rep = 0; |
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300 } |
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301 } |
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302 |
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303 void |
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304 octave_value::maybe_mutate (void) |
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305 { |
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306 octave_value *tmp = rep->try_narrowing_conversion (); |
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307 |
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308 if (tmp && tmp != rep) |
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309 { |
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310 if (--rep->count == 0) |
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311 delete rep; |
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312 |
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313 rep = tmp; |
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314 rep->count = 1; |
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315 } |
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316 } |
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317 |
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318 static void |
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319 gripe_no_conversion (const string& tn1, const string& tn2) |
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320 { |
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321 error ("no suitable conversion found for assignment of %s to indexed %s", |
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322 tn2.c_str (), tn1.c_str ()); |
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323 } |
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324 |
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325 octave_value& |
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326 octave_value::assign (const octave_value_list& idx, const octave_value& rhs) |
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327 { |
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328 make_unique (); |
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329 |
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330 bool assignment_ok = try_assignment (idx, rhs); |
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331 |
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332 if (! (error_state || assignment_ok)) |
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333 { |
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334 assignment_ok = try_assignment_with_conversion (idx, rhs); |
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335 |
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336 if (! (error_state || assignment_ok)) |
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337 gripe_no_conversion (type_name (), rhs.type_name ()); |
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338 } |
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339 |
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340 if (! error_state) |
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341 maybe_mutate (); |
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342 |
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343 return *this; |
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344 } |
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345 |
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346 Octave_map |
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347 octave_value::map_value (void) const |
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348 { |
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349 return rep->map_value (); |
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350 } |
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351 |
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352 ColumnVector |
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353 octave_value::vector_value (bool force_string_conv, |
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354 bool force_vector_conversion) const |
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355 { |
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356 ColumnVector retval; |
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357 |
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358 Matrix m = matrix_value (force_string_conv); |
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359 |
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360 if (error_state) |
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361 return retval; |
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362 |
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363 int nr = m.rows (); |
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364 int nc = m.columns (); |
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365 |
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366 if (nr == 1) |
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367 { |
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368 retval.resize (nc); |
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369 for (int i = 0; i < nc; i++) |
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370 retval (i) = m (0, i); |
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371 } |
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372 else if (nc == 1) |
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373 { |
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374 retval.resize (nr); |
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375 for (int i = 0; i < nr; i++) |
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376 retval (i) = m (i, 0); |
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377 } |
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378 else if (nr > 0 && nc > 0 |
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379 && (Vdo_fortran_indexing || force_vector_conversion)) |
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380 { |
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381 retval.resize (nr * nc); |
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382 int k = 0; |
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383 for (int j = 0; j < nc; j++) |
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384 for (int i = 0; i < nr; i++) |
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385 retval (k++) = m (i, j); |
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386 } |
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387 else |
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388 { |
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389 string tn = type_name (); |
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390 gripe_invalid_conversion (tn.c_str (), "real vector"); |
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391 } |
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392 |
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393 return retval; |
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394 } |
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395 |
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396 ComplexColumnVector |
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397 octave_value::complex_vector_value (bool force_string_conv, |
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398 bool force_vector_conversion) const |
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399 { |
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400 ComplexColumnVector retval; |
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401 |
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402 ComplexMatrix m = complex_matrix_value (force_string_conv); |
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403 |
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404 if (error_state) |
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405 return retval; |
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406 |
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407 int nr = m.rows (); |
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408 int nc = m.columns (); |
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409 |
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410 if (nr == 1) |
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411 { |
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412 retval.resize (nc); |
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413 for (int i = 0; i < nc; i++) |
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414 retval (i) = m (0, i); |
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415 } |
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416 else if (nc == 1) |
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417 { |
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418 retval.resize (nr); |
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419 for (int i = 0; i < nr; i++) |
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420 retval (i) = m (i, 0); |
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421 } |
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422 else if (nr > 0 && nc > 0 |
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423 && (Vdo_fortran_indexing || force_vector_conversion)) |
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424 { |
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425 retval.resize (nr * nc); |
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426 int k = 0; |
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427 for (int j = 0; j < nc; j++) |
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428 for (int i = 0; i < nr; i++) |
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429 retval (k++) = m (i, j); |
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430 } |
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431 else |
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432 { |
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433 string tn = type_name (); |
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434 gripe_invalid_conversion (tn.c_str (), "complex vector"); |
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435 } |
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436 |
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437 return retval; |
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438 } |
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439 |
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440 void |
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441 octave_value::print (void) |
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442 { |
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443 print (octave_stdout); |
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444 } |
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445 |
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446 void |
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447 octave_value::print_with_name (const string& name, bool print_padding) |
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448 { |
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449 print_with_name (octave_stdout, name, print_padding); |
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450 } |
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451 |
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452 void |
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453 octave_value::print_with_name (ostream& output_buf, const string& name, |
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454 bool print_padding) |
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455 { |
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456 bool pad_after = false; |
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457 |
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458 if (Vprint_answer_id_name) |
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459 { |
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460 if (print_as_scalar ()) |
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461 output_buf << name << " = "; |
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462 else if (print_as_structure ()) |
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463 { |
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464 pad_after = true; |
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465 output_buf << name << " ="; |
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466 } |
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467 else |
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468 { |
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469 pad_after = true; |
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470 output_buf << name << " =\n\n"; |
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471 } |
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472 } |
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473 |
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474 print (output_buf); |
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475 |
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476 if (print_padding && pad_after) |
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477 output_buf << "\n"; |
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478 } |
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479 |
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480 bool |
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481 octave_value::print_as_scalar (void) |
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482 { |
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483 int nr = rows (); |
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484 int nc = columns (); |
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485 |
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486 return (is_scalar_type () |
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487 || (is_string () && nr <= 1) |
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488 || (is_matrix_type () |
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489 && ((nr == 1 && nc == 1) |
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490 || nr == 0 |
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491 || nc == 0))); |
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492 } |
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493 |
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494 static void |
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2413
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495 gripe_indexed_assignment (const string& tn1, const string& tn2) |
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496 { |
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497 error ("assignment of %s to indexed %s not implemented", |
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498 tn2.c_str (), tn1.c_str ()); |
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499 } |
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500 |
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501 static void |
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502 gripe_conversion_failed (const string& tn1, const string& tn2) |
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503 { |
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504 error ("type conversion for assignment of %s to indexed %s failed", |
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505 tn2.c_str (), tn1.c_str ()); |
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506 } |
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507 |
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508 bool |
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509 octave_value::convert_and_assign (const octave_value_list& idx, |
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510 const octave_value& rhs) |
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511 { |
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512 bool assignment_ok = false; |
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513 |
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514 int t_lhs = type_id (); |
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515 int t_rhs = rhs.type_id (); |
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516 |
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517 int t_result |
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518 = octave_value_typeinfo::lookup_pref_assign_conv (t_lhs, t_rhs); |
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519 |
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520 if (t_result >= 0) |
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521 { |
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522 octave_value::type_conv_fcn cf |
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523 = octave_value_typeinfo::lookup_widening_op (t_lhs, t_result); |
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524 |
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525 if (cf) |
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526 { |
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527 octave_value *tmp = cf (*rep); |
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528 |
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529 if (tmp) |
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530 { |
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531 if (tmp != rep) |
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532 { |
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533 if (--rep->count == 0) |
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534 delete rep; |
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535 |
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536 rep = tmp; |
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537 rep->count = 1; |
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538 } |
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539 else |
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540 delete tmp; |
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541 |
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542 assignment_ok = try_assignment (idx, rhs); |
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543 } |
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544 else |
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545 gripe_conversion_failed (type_name (), rhs.type_name ()); |
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546 } |
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547 else |
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548 gripe_indexed_assignment (type_name (), rhs.type_name ()); |
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549 } |
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550 |
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551 return (assignment_ok && ! error_state); |
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552 } |
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553 |
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554 bool |
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555 octave_value::try_assignment_with_conversion (const octave_value_list& idx, |
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556 const octave_value& rhs) |
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557 { |
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558 bool assignment_ok = convert_and_assign (idx, rhs); |
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559 |
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560 if (! (error_state || assignment_ok)) |
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561 { |
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562 octave_value tmp_rhs; |
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563 octave_value::type_conv_fcn cf_rhs = rhs.numeric_conversion_function (); |
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564 |
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565 if (cf_rhs) |
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566 tmp_rhs = octave_value (cf_rhs (*rhs.rep)); |
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567 else |
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568 tmp_rhs = rhs; |
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569 |
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570 octave_value *old_rep = 0; |
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571 octave_value::type_conv_fcn cf_this = numeric_conversion_function (); |
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572 |
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573 if (cf_this) |
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574 { |
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575 old_rep = rep; |
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576 rep = cf_this (*rep); |
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577 rep->count = 1; |
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578 } |
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579 |
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580 cerr << type_name () << "\n"; |
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581 cerr << tmp_rhs.type_name () << "\n"; |
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582 |
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583 if (cf_this || cf_rhs) |
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584 { |
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585 assignment_ok = try_assignment (idx, tmp_rhs); |
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586 |
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587 if (! (error_state || assignment_ok)) |
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588 assignment_ok = convert_and_assign (idx, tmp_rhs); |
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589 } |
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590 |
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591 if (! assignment_ok && old_rep) |
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592 { |
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593 if (--rep->count == 0) |
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594 delete rep; |
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595 |
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596 rep = old_rep; |
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597 old_rep = 0; |
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598 } |
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599 |
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600 if (old_rep && --old_rep->count == 0) |
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601 delete old_rep; |
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602 } |
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603 |
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604 return (assignment_ok && ! error_state); |
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605 } |
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606 |
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607 bool |
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608 octave_value::try_assignment (const octave_value_list& idx, |
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609 const octave_value& rhs) |
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610 { |
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611 bool retval = false; |
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612 |
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613 int t_lhs = type_id (); |
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614 int t_rhs = rhs.type_id (); |
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615 |
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616 octave_value::assign_op_fcn f |
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617 = octave_value_typeinfo::lookup_assign_op (t_lhs, t_rhs); |
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618 |
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619 if (f) |
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620 { |
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621 f (*rep, idx, *(rhs.rep)); |
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622 |
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623 retval = (! error_state); |
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624 } |
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625 |
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626 return retval; |
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627 } |
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628 |
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629 static void |
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2376
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630 gripe_binary_op (const string& on, const string& tn1, const string& tn2) |
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631 { |
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632 error ("binary operator %s not implemented for %s by %s operations", |
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633 on.c_str (), tn1.c_str (), tn2.c_str ()); |
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634 } |
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635 |
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636 octave_value |
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637 do_binary_op (octave_value::binary_op op, const octave_value& v1, |
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638 const octave_value& v2) |
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639 { |
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640 octave_value retval; |
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641 |
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642 int t1 = v1.type_id (); |
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643 int t2 = v2.type_id (); |
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644 |
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645 octave_value::binary_op_fcn f |
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646 = octave_value_typeinfo::lookup_binary_op (op, t1, t2); |
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647 |
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648 if (f) |
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649 retval = f (*v1.rep, *v2.rep); |
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650 else |
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651 { |
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652 octave_value tv1; |
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2409
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653 octave_value::type_conv_fcn cf1 = v1.numeric_conversion_function (); |
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2376
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654 |
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655 if (cf1) |
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656 { |
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657 tv1 = octave_value (cf1 (*v1.rep)); |
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658 t1 = tv1.type_id (); |
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659 } |
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660 else |
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661 tv1 = v1; |
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662 |
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663 octave_value tv2; |
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2409
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664 octave_value::type_conv_fcn cf2 = v2.numeric_conversion_function (); |
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2376
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665 |
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666 if (cf2) |
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667 { |
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668 tv2 = octave_value (cf2 (*v2.rep)); |
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669 t2 = tv2.type_id (); |
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670 } |
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671 else |
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672 tv2 = v2; |
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673 |
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674 if (cf1 || cf2) |
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675 { |
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676 octave_value::binary_op_fcn f |
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677 = octave_value_typeinfo::lookup_binary_op (op, t1, t2); |
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678 |
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679 if (f) |
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680 retval = f (*tv1.rep, *tv2.rep); |
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681 else |
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682 gripe_binary_op (octave_value::binary_op_as_string (op), |
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683 v1.type_name (), v2.type_name ()); |
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684 } |
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685 else |
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686 gripe_binary_op (octave_value::binary_op_as_string (op), |
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687 v1.type_name (), v2.type_name ()); |
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688 } |
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689 |
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690 return retval; |
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691 } |
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692 |
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693 void |
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694 install_types (void) |
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695 { |
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696 octave_base_value::register_type (); |
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697 octave_scalar::register_type (); |
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698 octave_complex::register_type (); |
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699 octave_matrix::register_type (); |
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700 octave_complex_matrix::register_type (); |
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701 octave_range::register_type (); |
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702 octave_char_matrix::register_type (); |
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703 octave_char_matrix_str::register_type (); |
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704 octave_struct::register_type (); |
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705 octave_all_va_args::register_type (); |
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706 octave_magic_colon::register_type (); |
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707 } |
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708 |
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709 static int |
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710 do_fortran_indexing (void) |
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711 { |
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712 Vdo_fortran_indexing = check_preference ("do_fortran_indexing"); |
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713 |
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714 liboctave_dfi_flag = Vdo_fortran_indexing; |
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715 |
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716 return 0; |
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717 } |
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718 |
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719 static int |
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720 implicit_str_to_num_ok (void) |
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721 { |
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722 Vimplicit_str_to_num_ok = check_preference ("implicit_str_to_num_ok"); |
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723 |
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724 return 0; |
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725 } |
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726 |
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727 static int |
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728 ok_to_lose_imaginary_part (void) |
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729 { |
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730 Vok_to_lose_imaginary_part = check_preference ("ok_to_lose_imaginary_part"); |
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731 |
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732 return 0; |
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733 } |
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734 |
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735 static int |
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736 prefer_column_vectors (void) |
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737 { |
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738 Vprefer_column_vectors |
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739 = check_preference ("prefer_column_vectors"); |
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740 |
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741 liboctave_pcv_flag = Vprefer_column_vectors; |
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742 |
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743 return 0; |
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744 } |
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745 |
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746 static int |
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747 prefer_zero_one_indexing (void) |
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748 { |
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749 Vprefer_zero_one_indexing = check_preference ("prefer_zero_one_indexing"); |
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750 |
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751 liboctave_pzo_flag = Vprefer_zero_one_indexing; |
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752 |
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753 return 0; |
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754 } |
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755 |
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756 static int |
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757 print_answer_id_name (void) |
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758 { |
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759 Vprint_answer_id_name = check_preference ("print_answer_id_name"); |
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760 |
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761 return 0; |
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762 } |
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763 |
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764 static int |
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765 propagate_empty_matrices (void) |
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766 { |
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767 Vpropagate_empty_matrices = check_preference ("propagate_empty_matrices"); |
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768 |
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769 return 0; |
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770 } |
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771 |
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772 static int |
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773 resize_on_range_error (void) |
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774 { |
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775 Vresize_on_range_error = check_preference ("resize_on_range_error"); |
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776 |
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777 liboctave_rre_flag = Vresize_on_range_error; |
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778 |
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779 return 0; |
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780 } |
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781 |
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782 static int |
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783 struct_levels_to_print (void) |
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784 { |
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785 double val; |
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786 if (builtin_real_scalar_variable ("struct_levels_to_print", val) |
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787 && ! xisnan (val)) |
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788 { |
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789 int ival = NINT (val); |
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790 if (ival >= 0 && (double) ival == val) |
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791 { |
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792 Vstruct_levels_to_print = ival; |
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|
793 return 0; |
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|
794 } |
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|
795 } |
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796 gripe_invalid_value_specified ("struct_levels_to_print"); |
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797 return -1; |
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|
798 } |
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799 |
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800 static int |
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801 warn_divide_by_zero (void) |
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802 { |
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803 Vwarn_divide_by_zero = check_preference ("warn_divide_by_zero"); |
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804 |
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|
805 return 0; |
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|
806 } |
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807 |
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808 void |
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809 symbols_of_value (void) |
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|
810 { |
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811 DEFVAR (do_fortran_indexing, 0.0, 0, do_fortran_indexing, |
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812 "allow single indices for matrices"); |
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|
813 |
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814 DEFVAR (implicit_str_to_num_ok, 0.0, 0, implicit_str_to_num_ok, |
|
|
815 "allow implicit string to number conversion"); |
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|
816 |
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817 DEFVAR (ok_to_lose_imaginary_part, "warn", 0, ok_to_lose_imaginary_part, |
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|
818 "silently convert from complex to real by dropping imaginary part"); |
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|
819 |
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820 DEFVAR (prefer_column_vectors, 1.0, 0, prefer_column_vectors, |
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|
821 "prefer column/row vectors"); |
|
|
822 |
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|
823 DEFVAR (prefer_zero_one_indexing, 0.0, 0, prefer_zero_one_indexing, |
|
|
824 "when there is a conflict, prefer zero-one style indexing"); |
|
|
825 |
|
|
826 DEFVAR (print_answer_id_name, 1.0, 0, print_answer_id_name, |
|
|
827 "set output style to print `var_name = ...'"); |
|
|
828 |
|
|
829 DEFVAR (propagate_empty_matrices, 1.0, 0, propagate_empty_matrices, |
|
|
830 "operations on empty matrices return an empty matrix, not an error"); |
|
|
831 |
|
|
832 DEFVAR (resize_on_range_error, 1.0, 0, resize_on_range_error, |
|
|
833 "enlarge matrices on assignment"); |
|
|
834 |
|
|
835 DEFVAR (struct_levels_to_print, 2.0, 0, struct_levels_to_print, |
|
|
836 "number of levels of structure elements to print"); |
|
|
837 |
|
|
838 DEFVAR (warn_divide_by_zero, 1.0, 0, warn_divide_by_zero, |
|
|
839 "If TRUE, warn about division by zero"); |
|
|
840 } |
|
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841 |
|
|
842 /* |
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|
843 ;;; Local Variables: *** |
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|
844 ;;; mode: C++ *** |
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845 ;;; End: *** |
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|
846 */ |
