annotate libinterp/corefcn/variables.h @ 20614:10ec79b47808

use new string_value method to handle value extraction errors * __voronoi__.cc, chol.cc, colamd.cc, fftw.cc: Use new string_value method.
author John W. Eaton <jwe@octave.org>
date Thu, 08 Oct 2015 18:15:56 -0400
parents 4197fc428c7d
children
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1 /*
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2
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3 Copyright (C) 1993-2015 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 3 of the License, or (at your
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10 option) any 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, see
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19 <http://www.gnu.org/licenses/>.
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21 */
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22
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23 #if !defined (octave_variables_h)
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24 #define octave_variables_h 1
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25
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26 class octave_function;
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27 class octave_user_function;
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29 class tree_identifier;
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30 class octave_value;
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31 class octave_value_list;
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32 class octave_builtin;
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33 class string_vector;
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34
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35 #include <cfloat>
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36
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37 #include <limits>
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38 #include <string>
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39
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40 #include "lo-ieee.h"
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41
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42 #include "ov.h"
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43 #include "ov-builtin.h"
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44 #include "symtab.h"
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45
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46 extern OCTINTERP_API void clear_mex_functions (void);
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48 extern OCTINTERP_API octave_function *
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49 is_valid_function (const octave_value&, const std::string& = std::string (),
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50 bool warn = false);
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52 extern OCTINTERP_API octave_function *
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53 is_valid_function (const std::string&, const std::string& = std::string (),
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54 bool warn = false);
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55
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56 extern OCTINTERP_API octave_function *
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57 extract_function (const octave_value& arg, const std::string& warn_for,
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58 const std::string& fname, const std::string& header,
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59 const std::string& trailer);
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61 extern OCTINTERP_API string_vector
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62 get_struct_elts (const std::string& text);
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64 extern OCTINTERP_API string_vector
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65 generate_struct_completions (const std::string& text, std::string& prefix,
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66 std::string& hint);
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67
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68 extern OCTINTERP_API bool
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69 looks_like_struct (const std::string& text);
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71 extern OCTINTERP_API int
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72 symbol_exist (const std::string& name, const std::string& type = "any");
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74 extern OCTINTERP_API std::string
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75 unique_symbol_name (const std::string& basename);
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76
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77 extern OCTINTERP_API octave_value
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78 lookup_function_handle (const std::string& nm);
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80 extern OCTINTERP_API octave_value
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81 get_global_value (const std::string& nm, bool silent = false);
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83 extern OCTINTERP_API void
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84 set_global_value (const std::string& nm, const octave_value& val);
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86 extern OCTINTERP_API octave_value
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87 get_top_level_value (const std::string& nm, bool silent = false);
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88
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89 extern OCTINTERP_API void
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90 set_top_level_value (const std::string& nm, const octave_value& val);
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91
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92 extern OCTINTERP_API octave_value
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93 set_internal_variable (bool& var, const octave_value_list& args,
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94 int nargout, const char *nm);
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96 extern OCTINTERP_API octave_value
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97 set_internal_variable (char& var, const octave_value_list& args,
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98 int nargout, const char *nm);
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99
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100 extern OCTINTERP_API octave_value
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101 set_internal_variable (int& var, const octave_value_list& args,
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102 int nargout, const char *nm,
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103 int minval = std::numeric_limits<int>::min (),
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104 int maxval = std::numeric_limits<int>::max ());
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105
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106 extern OCTINTERP_API octave_value
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107 set_internal_variable (double& var, const octave_value_list& args,
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108 int nargout, const char *nm,
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109 double minval = -octave_Inf,
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110 double maxval = octave_Inf);
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111
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112 extern OCTINTERP_API octave_value
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113 set_internal_variable (std::string& var, const octave_value_list& args,
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114 int nargout, const char *nm, bool empty_ok = true);
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115
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116 extern OCTINTERP_API octave_value
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117 set_internal_variable (int& var, const octave_value_list& args,
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118 int nargout, const char *nm, const char **choices);
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119
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120 #define SET_INTERNAL_VARIABLE(NM) \
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121 set_internal_variable (V ## NM, args, nargout, #NM)
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122
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123 #define SET_NONEMPTY_INTERNAL_STRING_VARIABLE(NM) \
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124 set_internal_variable (V ## NM, args, nargout, #NM, false)
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125
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126 #define SET_INTERNAL_VARIABLE_WITH_LIMITS(NM, MINVAL, MAXVAL) \
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127 set_internal_variable (V ## NM, args, nargout, #NM, MINVAL, MAXVAL)
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128
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129 // in the following, CHOICES must be a C string array terminated by null.
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130 #define SET_INTERNAL_VARIABLE_CHOICES(NM, CHOICES) \
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131 set_internal_variable (V ## NM, args, nargout, #NM, CHOICES)
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132
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133 extern OCTINTERP_API std::string builtin_string_variable (const std::string&);
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134 extern OCTINTERP_API int builtin_real_scalar_variable (const std::string&,
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135 double&);
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136 extern OCTINTERP_API octave_value builtin_any_variable (const std::string&);
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137
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138 extern OCTINTERP_API void bind_ans (const octave_value& val, bool print);
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139
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140 extern OCTINTERP_API void
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141 bind_internal_variable (const std::string& fname,
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142 const octave_value& val) GCC_ATTR_DEPRECATED;
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143
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144 extern OCTINTERP_API void mlock (void);
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145 extern OCTINTERP_API void munlock (const std::string&);
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146 extern OCTINTERP_API bool mislocked (const std::string&);
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147
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148 extern OCTINTERP_API void clear_function (const std::string& nm);
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149 extern OCTINTERP_API void clear_variable (const std::string& nm);
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150 extern OCTINTERP_API void clear_symbol (const std::string& nm);
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151
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152 extern OCTINTERP_API void maybe_missing_function_hook (const std::string& name);
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153
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154 #endif