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update formatting of copyright notices * Use <https://octave.org/copyright/> instead of <https://octave.org/COPYRIGHT.html/>. * For consistency with other comments in the Octave sources, use C++-style comments for copyright blocks in C and C++ files. * Use delimiters above and below copyright blocks that are appropriate for the language used in the file. * Eliminate extra spacing inside copyright blocks. * lex.ll (looks_like_copyright): Also allow newlines and carriage returns before the word "Copyright". * scripts/mk-doc.pl (gethelp): Also skip empty comment lines. * bp-table.cc, type.m: Adjust tests.
author John W. Eaton <jwe@octave.org>
date Wed, 08 Jan 2020 11:59:41 -0500
parents 1891570abac8
children 0a5b15007766
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27923
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2020 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if ! defined (octave_symrec_h)
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27 #define octave_symrec_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <deque>
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32 #include <list>
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33 #include <memory>
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34 #include <string>
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35
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36 class octave_user_function;
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37
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38 #include "ov.h"
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39 #include "ovl.h"
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40
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41 namespace octave
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42 {
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43 class symbol_scope_rep;
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44
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45 class symbol_record
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46 {
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47 public:
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48
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49 typedef size_t context_id;
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50
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51 // generic variable
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52 static const unsigned int local = 1;
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53
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54 // formal parameter
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55 static const unsigned int formal = 2;
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56
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57 // this symbol may NOT become a variable.
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58 // (symbol added to a static workspace)
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59 static const unsigned int added_static = 4;
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60
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61 private:
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62
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63 class symbol_record_rep
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64 {
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65 public:
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66
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67 symbol_record_rep (const std::string& nm, unsigned int sc)
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68 : m_frame_offset (0), m_data_offset (0), m_storage_class (sc),
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69 m_name (nm)
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70 { }
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71
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72 symbol_record_rep (const symbol_record_rep&) = default;
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73
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74 symbol_record_rep& operator = (const symbol_record_rep&) = default;
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75
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76 ~symbol_record_rep (void) = default;
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77
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78 // FIXME: use special storage class instead?
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79 bool is_valid (void) const { return ! m_name.empty (); }
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80
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81 void set_frame_offset (size_t offset) { m_frame_offset = offset; }
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82
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83 size_t frame_offset (void) const { return m_frame_offset; }
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84
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85 void set_data_offset (size_t offset) { m_data_offset = offset; }
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86
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87 size_t data_offset (void) const { return m_data_offset; }
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88
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89 bool is_local (void) const
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90 {
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91 return m_storage_class & local;
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92 }
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93
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94 bool is_formal (void) const
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95 {
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96 return m_storage_class & formal;
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97 }
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98
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99 bool is_added_static (void) const
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100 {
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101 return m_storage_class & added_static;
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102 }
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103
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104 void mark_local (void)
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105 {
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106 m_storage_class |= local;
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107 }
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108
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109 void mark_formal (void)
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110 {
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111 m_storage_class |= formal;
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112 }
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113
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114 void mark_added_static (void)
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115 {
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116 m_storage_class |= added_static;
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117 }
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118
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119 void unmark_local (void)
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120 {
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121 m_storage_class &= ~local;
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122 }
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123
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124 void unmark_formal (void)
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125 {
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126 m_storage_class &= ~formal;
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127 }
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128
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129 void unmark_added_static (void)
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130 {
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131 m_storage_class &= ~added_static;
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132 }
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133
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134 unsigned int storage_class (void) const { return m_storage_class; }
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135
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136 std::shared_ptr<symbol_record_rep> dup (void) const;
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137
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138 octave_value dump (void) const;
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139
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140 std::string name (void) const { return m_name; }
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141
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142 void rename (const std::string& new_name) { m_name = new_name; }
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143
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144 private:
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145
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146 size_t m_frame_offset;
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147 size_t m_data_offset;
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148
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149 unsigned int m_storage_class;
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150
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151 std::string m_name;
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152 };
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153
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154 public:
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155
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156 symbol_record (const std::string& nm = "", unsigned int sc = local)
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157 : m_rep (new symbol_record_rep (nm, sc))
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158 { }
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159
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160 symbol_record (const std::string& nm, const octave_value&,
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161 unsigned int sc = local)
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162 : m_rep (new symbol_record_rep (nm, sc))
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163 { }
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164
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165 symbol_record (const symbol_record&) = default;
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166
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167 symbol_record& operator = (const symbol_record&) = default;
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168
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169 ~symbol_record (void) = default;
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170
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171 bool is_valid (void) const { return m_rep->is_valid (); }
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172
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173 explicit operator bool () const { return is_valid (); }
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174
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175 void set_frame_offset (size_t offset) { m_rep->set_frame_offset (offset); }
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176
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177 size_t frame_offset (void) const { return m_rep->frame_offset (); }
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178
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179 void set_data_offset (size_t offset) { m_rep->set_data_offset (offset); }
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180
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181 size_t data_offset (void) const { return m_rep->data_offset (); }
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182
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183 symbol_record dup (void) const { return symbol_record (m_rep->dup ()); }
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184
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185 std::string name (void) const { return m_rep->name (); }
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186
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187 void rename (const std::string& new_name) { m_rep->rename (new_name); }
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188
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189 bool is_local (void) const { return m_rep->is_local (); }
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190 bool is_formal (void) const { return m_rep->is_formal (); }
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191 bool is_added_static (void) const { return m_rep->is_added_static (); }
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192
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193 void mark_local (void) { m_rep->mark_local (); }
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194 void mark_formal (void) { m_rep->mark_formal (); }
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195 void mark_added_static (void) { m_rep->mark_added_static (); }
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196
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197 void unmark_local (void) { m_rep->unmark_local (); }
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198 void unmark_formal (void) { m_rep->unmark_formal (); }
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199 void unmark_added_static (void) { m_rep->unmark_added_static (); }
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200
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201 unsigned int storage_class (void) const { return m_rep->storage_class (); }
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202
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203 octave_value dump (void) const { return m_rep->dump (); }
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204
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205 private:
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206
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207 std::shared_ptr<symbol_record_rep> m_rep;
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208
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209 // NEW_REP must be dynamically allocated or nullptr.
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210 symbol_record (const std::shared_ptr<symbol_record_rep>& new_rep)
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211 : m_rep (new_rep)
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212 { }
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213 };
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214 }
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215
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216 #endif