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annotate src/variables.h @ 7016:93c65f2a5668

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[project @ 2007-10-12 06:40:56 by jwe]
author jwe
date Fri, 12 Oct 2007 06:41:26 +0000
parents ea65de49e18e
children a1dbe9d80eee
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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
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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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
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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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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20
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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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28 class symbol_record;
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29 class symbol_table;
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30
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31 class tree_identifier;
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32 class octave_value;
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33 class octave_value_list;
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34 class octave_builtin;
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35 class octave_mapper;
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36 class string_vector;
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37
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38 #include <climits>
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39 #include <cfloat>
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40
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41 #include <string>
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43 #include "ov.h"
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44 #include "ov-builtin.h"
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45 #include "symtab.h"
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46
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47 extern OCTINTERP_API bool at_top_level (void);
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48
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49 extern OCTINTERP_API void initialize_symbol_tables (void);
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50 extern OCTINTERP_API void clear_mex_functions (void);
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51
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52 extern OCTINTERP_API bool is_command_name (const std::string&);
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53
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54 // The next three are here temporarily...
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55 extern OCTINTERP_API bool is_marked_as_rawcommand (const std::string& s);
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56 extern OCTINTERP_API void mark_as_rawcommand (const std::string& s);
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57 extern OCTINTERP_API void unmark_rawcommand (const std::string& s);
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58
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59 extern OCTINTERP_API bool is_rawcommand_name (const std::string&);
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60 extern OCTINTERP_API bool is_mapper_function_name (const std::string&);
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61 extern OCTINTERP_API bool is_builtin_function_name (const std::string&);
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62 extern OCTINTERP_API bool is_globally_visible (const std::string&);
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63
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64 extern OCTINTERP_API octave_function *
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65 is_valid_function (const octave_value&, const std::string& = std::string (),
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66 bool warn = false);
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67
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68 extern OCTINTERP_API octave_function *
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69 is_valid_function (const std::string&, const std::string& = std::string (),
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70 bool warn = false);
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71
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72 extern OCTINTERP_API octave_function *
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73 extract_function (const octave_value& arg, const std::string& warn_for,
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74 const std::string& fname, const std::string& header,
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75 const std::string& trailer);
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77 extern OCTINTERP_API string_vector
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78 get_struct_elts (const std::string& text);
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79
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80 extern OCTINTERP_API string_vector
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81 generate_struct_completions (const std::string& text, std::string& prefix,
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82 std::string& hint);
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83
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84 extern OCTINTERP_API bool
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85 looks_like_struct (const std::string& text);
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86
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87 extern OCTINTERP_API int
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88 symbol_exist (const std::string& name, const std::string& type = "any");
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90 extern OCTINTERP_API std::string
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91 unique_symbol_name (const std::string& basename);
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92
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93 extern OCTINTERP_API bool
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94 fcn_out_of_date (octave_function *fcn, const std::string& ff, time_t tp);
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95
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96 extern OCTINTERP_API bool lookup (symbol_record *s, bool exec_script = true);
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97
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98 extern OCTINTERP_API symbol_record *
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99 lookup_by_name (const std::string& nm, bool exec_script = true);
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100
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101 extern OCTINTERP_API octave_value
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102 lookup_function (const std::string& nm,
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103 const std::string& parent = std::string ());
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104
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105 extern OCTINTERP_API octave_value lookup_user_function (const std::string& nm);
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106
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107 extern OCTINTERP_API octave_value lookup_function_handle (const std::string& nm);
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108
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109 extern OCTINTERP_API octave_value
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110 get_global_value (const std::string& nm, bool silent = false);
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111
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112 extern OCTINTERP_API void set_global_value (const std::string& nm, const octave_value& val);
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113
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114 extern OCTINTERP_API octave_value
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115 set_internal_variable (bool& var, const octave_value_list& args,
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116 int nargout, const char *nm);
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117
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118 extern OCTINTERP_API octave_value
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119 set_internal_variable (char& var, const octave_value_list& args,
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120 int nargout, const char *nm);
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121
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122 extern OCTINTERP_API octave_value
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123 set_internal_variable (int& var, const octave_value_list& args,
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124 int nargout, const char *nm,
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125 int minval = INT_MIN, int maxval = INT_MAX);
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126
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127 extern OCTINTERP_API octave_value
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128 set_internal_variable (double& var, const octave_value_list& args,
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129 int nargout, const char *nm,
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130 double minval = DBL_MIN, double maxval = DBL_MAX);
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131
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132 extern OCTINTERP_API octave_value
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133 set_internal_variable (std::string& var, const octave_value_list& args,
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134 int nargout, const char *nm, bool empty_ok = true);
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135
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136 #define SET_INTERNAL_VARIABLE(NM) \
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137 set_internal_variable (V ## NM, args, nargout, #NM)
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138
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139 #define SET_NONEMPTY_INTERNAL_STRING_VARIABLE(NM) \
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140 set_internal_variable (V ## NM, args, nargout, #NM, false)
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141
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142 #define SET_INTERNAL_VARIABLE_WITH_LIMITS(NM, MINVAL, MAXVAL) \
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143 set_internal_variable (V ## NM, args, nargout, #NM, MINVAL, MAXVAL)
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145 extern OCTINTERP_API std::string builtin_string_variable (const std::string&);
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146 extern OCTINTERP_API int builtin_real_scalar_variable (const std::string&, double&);
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147 extern OCTINTERP_API octave_value builtin_any_variable (const std::string&);
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148
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149 extern OCTINTERP_API void link_to_global_variable (symbol_record *sr);
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150 extern OCTINTERP_API void link_to_builtin_or_function (symbol_record *sr);
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151
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152 extern OCTINTERP_API void force_link_to_function (const std::string&);
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153
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154 extern OCTINTERP_API void bind_ans (const octave_value& val, bool print);
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155
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156 extern OCTINTERP_API void
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157 bind_internal_variable (const std::string& fname, const octave_value& val);
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158
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159 extern OCTINTERP_API void mlock (const std::string&);
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160 extern OCTINTERP_API void munlock (const std::string&);
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161 extern OCTINTERP_API bool mislocked (const std::string&);
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162
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163 extern OCTINTERP_API bool clear_function (const std::string& nm);
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164 extern OCTINTERP_API bool clear_variable (const std::string& nm);
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165 extern OCTINTERP_API bool clear_symbol (const std::string& nm);
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166
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167 // Symbol table for symbols at the top level.
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168 extern OCTINTERP_API symbol_table *top_level_sym_tab;
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169
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170 // Symbol table for the current scope.
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171 extern OCTINTERP_API symbol_table *curr_sym_tab;
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172
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173 // Symbol table for the current caller scope.
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174 extern OCTINTERP_API symbol_table *curr_caller_sym_tab;
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175
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176 // Symbol table for global symbols.
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177 extern OCTINTERP_API symbol_table *global_sym_tab;
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178
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179 // Symbol table for functions and built-in symbols.
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180 extern OCTINTERP_API symbol_table *fbi_sym_tab;
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181
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182 #endif
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183
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184 /*
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185 ;;; Local Variables: ***
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186 ;;; mode: C++ ***
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187 ;;; End: ***
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188 */