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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents a61e1a0f6024
children 83f9f8bda883
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2007-2022 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_ov_class_h)
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27 #define octave_ov_class_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 <cstdlib>
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32
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33 #include <iosfwd>
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34 #include <string>
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35
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36 #include "mx-base.h"
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37 #include "str-vec.h"
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38
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39 #include "error.h"
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40 #include "oct-map.h"
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41 #include "ov-base.h"
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42
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43 namespace octave
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44 {
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45 class type_info;
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46 }
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47
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48 class octave_value_list;
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49
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50 // Data structures.
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51
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52 class
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53 octave_class : public octave_base_value
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54 {
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55 public:
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56
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57 octave_class (void)
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58 : octave_base_value (), m_map (), c_name (),
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59 m_parent_list (), m_obsolete_copies (0)
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60 { }
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61
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62 octave_class (const octave_map& m, const std::string& id)
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63 : octave_base_value (), m_map (m), c_name (id),
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64 m_parent_list (), m_obsolete_copies (0)
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65 { }
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66
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67 octave_class (const octave_map& m, const std::string& id,
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68 const std::list<std::string>& plist)
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69 : octave_base_value (), m_map (m), c_name (id),
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70 m_parent_list (plist), m_obsolete_copies (0)
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71 { }
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72
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73 octave_class (const octave_map& m, const std::string& id,
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74 const octave_value_list& parents);
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75
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76 octave_class (const octave_class& s)
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77 : octave_base_value (s), m_map (s.m_map), c_name (s.c_name),
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78 m_parent_list (s.m_parent_list), m_obsolete_copies (0) { }
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79
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80 ~octave_class (void) = default;
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81
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82 octave_base_value * clone (void) const { return new octave_class (*this); }
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83
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84 OCTINTERP_API octave_base_value * unique_clone (void);
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85
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86 octave_base_value * empty_clone (void) const
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87 {
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88 return new octave_class (octave_map (m_map.keys ()), c_name, m_parent_list);
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89 }
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90
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91 void break_closure_cycles (const std::shared_ptr<octave::stack_frame>& frame);
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92
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93 OCTINTERP_API Cell dotref (const octave_value_list& idx);
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94
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95 OCTINTERP_API Matrix size (void);
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96
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97 OCTINTERP_API octave_idx_type xnumel (const octave_value_list&);
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98
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99 // We don't need to override all three forms of subsref. The using
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100 // declaration will avoid warnings about partially-overloaded virtual
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101 // functions.
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102 using octave_base_value::subsref;
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103
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104 octave_value subsref (const std::string& type,
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105 const std::list<octave_value_list>& idx)
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106 {
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107 octave_value_list tmp = subsref (type, idx, 1);
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108 return tmp.length () > 0 ? tmp(0) : octave_value ();
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109 }
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110
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111 OCTINTERP_API octave_value_list
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112 subsref (const std::string& type, const std::list<octave_value_list>& idx,
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113 int nargout);
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114
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115 static OCTINTERP_API octave_value
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116 numeric_conv (const Cell& val, const std::string& type);
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117
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118 void assign(const std::string& k, const octave_value& rhs)
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119 { m_map.assign (k, rhs); };
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120
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121 OCTINTERP_API octave_value
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122 subsasgn (const std::string& type, const std::list<octave_value_list>& idx,
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123 const octave_value& rhs);
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124
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125 OCTINTERP_API octave_value
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126 undef_subsasgn (const std::string& type,
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127 const std::list<octave_value_list>& idx,
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128 const octave_value& rhs);
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129
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130 OCTINTERP_API octave::idx_vector
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131 index_vector (bool require_integers = false) const;
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132
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133 dim_vector dims (void) const { return m_map.dims (); }
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134
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135 OCTINTERP_API std::size_t byte_size (void) const;
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136
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137 // This is the number of elements in each field. The total number
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138 // of elements is numel () * nfields ().
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139 octave_idx_type numel (void) const
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140 {
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141 dim_vector dv = dims ();
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142 return dv.numel ();
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143 }
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144
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145 octave_idx_type nfields (void) const { return m_map.nfields (); }
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146
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147 std::size_t nparents (void) const { return m_parent_list.size (); }
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148
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149 octave_value reshape (const dim_vector& new_dims) const
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150 {
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151 octave_class retval = octave_class (*this);
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152 retval.m_map = retval.map_value ().reshape (new_dims);
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153 return octave_value (new octave_class (retval));
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154 }
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155
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156 octave_value resize (const dim_vector& dv, bool = false) const
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157 {
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158 octave_class retval = octave_class (*this);
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159 retval.m_map.resize (dv);
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160 return octave_value (new octave_class (retval));
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161 }
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162
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163 bool is_defined (void) const { return true; }
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164
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165 bool isstruct (void) const { return false; }
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166
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167 bool isobject (void) const { return true; }
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168
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169 OCTINTERP_API bool is_true (void) const;
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170
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171 octave_map map_value (void) const { return m_map; }
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172
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173 OCTINTERP_API string_vector map_keys (void) const;
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174
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175 std::list<std::string> parent_class_name_list (void) const
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176 { return m_parent_list; }
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177
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178 string_vector parent_class_names (void) const
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179 { return string_vector (m_parent_list); }
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180
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181 OCTINTERP_API octave_base_value * find_parent_class (const std::string&);
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182
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183 OCTINTERP_API octave_base_value * unique_parent_class (const std::string&);
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184
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185 OCTINTERP_API bool is_instance_of (const std::string&) const;
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186
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187 OCTINTERP_API string_vector string_vector_value (bool pad) const;
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188
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189 OCTINTERP_API void print (std::ostream& os, bool pr_as_read_syntax = false);
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190
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191 OCTINTERP_API void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const;
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192
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193 OCTINTERP_API bool reconstruct_exemplar (void);
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194
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195 OCTINTERP_API static void clear_exemplar_map (void);
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196
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197 OCTINTERP_API bool reconstruct_parents (void);
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198
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199 OCTINTERP_API bool save_ascii (std::ostream& os);
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200
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201 OCTINTERP_API bool load_ascii (std::istream& is);
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202
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203 OCTINTERP_API bool save_binary (std::ostream& os, bool save_as_floats);
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204
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205 OCTINTERP_API bool
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206 load_binary (std::istream& is, bool swap,
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207 octave::mach_info::float_format fmt);
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208
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209 OCTINTERP_API bool
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210 save_hdf5 (octave_hdf5_id loc_id, const char *name, bool save_as_floats);
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211
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212 OCTINTERP_API bool
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213 load_hdf5 (octave_hdf5_id loc_id, const char *name);
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214
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215 OCTINTERP_API mxArray * as_mxArray (bool interleaved) const;
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216
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217 private:
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218 octave_map m_map;
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219
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220 public:
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221 int type_id (void) const { return t_id; }
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222 std::string type_name (void) const { return t_name; }
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223 std::string class_name (void) const { return c_name; }
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224
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225 static int static_type_id (void) { return t_id; }
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226 static std::string static_type_name (void) { return t_name; }
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227 static std::string static_class_name (void) { return "<unknown>"; }
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228 static OCTINTERP_API void register_type (octave::type_info&);
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229
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230 private:
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231 static int t_id;
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232
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233 static const std::string t_name;
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234 std::string c_name;
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235 std::list<std::string> m_parent_list;
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236
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237 OCTINTERP_API bool in_class_method (void);
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238 OCTINTERP_API std::string get_current_method_class (void);
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239
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240 OCTINTERP_API octave_value
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241 subsasgn_common (const octave_value& obj, const std::string& type,
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242 const std::list<octave_value_list>& idx,
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243 const octave_value& rhs);
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244
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245 int m_obsolete_copies;
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246
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247 public:
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248 // The list of field names and parent classes defines a class. We
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249 // keep track of each class that has been created so that we know
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250 class exemplar_info
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251 {
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252 public:
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253
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254 exemplar_info (void) : m_field_names (), m_parent_class_names () { }
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255
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256 OCTINTERP_API exemplar_info (const octave_value& obj);
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257
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258 exemplar_info (const exemplar_info& x)
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259 : m_field_names (x.m_field_names),
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260 m_parent_class_names (x.m_parent_class_names) { }
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261
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262 exemplar_info& operator = (const exemplar_info& x)
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263 {
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264 if (&x != this)
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265 {
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266 m_field_names = x.m_field_names;
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267 m_parent_class_names = x.m_parent_class_names;
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268 }
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269 return *this;
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270 }
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271
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272 octave_idx_type nfields (void) const { return m_field_names.numel (); }
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273
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274 std::size_t nparents (void) const { return m_parent_class_names.size (); }
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275
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276 string_vector fields (void) const { return m_field_names; }
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277
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278 std::list<std::string> parents (void) const { return m_parent_class_names; }
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279
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280 OCTINTERP_API bool compare (const octave_value& obj) const;
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281
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282 private:
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283
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284 string_vector m_field_names;
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285 std::list<std::string> m_parent_class_names;
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286 };
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287
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288 // A map from class names to lists of fields.
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289 static std::map<std::string, exemplar_info> exemplar_map;
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290
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291 typedef std::map<std::string, exemplar_info>::iterator
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292 exemplar_iterator;
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293 typedef std::map<std::string, exemplar_info>::const_iterator
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294 exemplar_const_iterator;
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295 };
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296
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297 #endif