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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.
author John W. Eaton <jwe@octave.org>
date Wed, 10 Feb 2021 09:52:15 -0500
parents 7a8c69c4eb55
children 7854d5752dd2 c74ff452e2bb
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2007-2021 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 (), map (), c_name (),
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59 parent_list (), 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 (), map (m), c_name (id),
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64 parent_list (), 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 (), map (m), c_name (id),
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70 parent_list (plist), 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), map (s.map), c_name (s.c_name),
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78 parent_list (s.parent_list), 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 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 (map.keys ()), c_name, parent_list);
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89 }
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90
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91 Cell dotref (const octave_value_list& idx);
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92
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93 Matrix size (void);
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94
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95 octave_idx_type xnumel (const octave_value_list&);
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96
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97 // We don't need to override all three forms of subsref. The using
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98 // declaration will avoid warnings about partially-overloaded virtual
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99 // functions.
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100 using octave_base_value::subsref;
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101
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102 octave_value subsref (const std::string& type,
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103 const std::list<octave_value_list>& idx)
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104 {
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105 octave_value_list tmp = subsref (type, idx, 1);
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106 return tmp.length () > 0 ? tmp(0) : octave_value ();
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107 }
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108
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109 octave_value_list subsref (const std::string& type,
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110 const std::list<octave_value_list>& idx,
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111 int nargout);
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112
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113 static octave_value numeric_conv (const Cell& val,
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114 const std::string& type);
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115
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116 void assign(const std::string& k, const octave_value& rhs)
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117 { map.assign (k, rhs); };
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118
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119 octave_value subsasgn (const std::string& type,
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120 const std::list<octave_value_list>& idx,
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121 const octave_value& rhs);
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122
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123 octave_value undef_subsasgn (const std::string& type,
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124 const std::list<octave_value_list>& idx,
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125 const octave_value& rhs);
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126
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127 idx_vector index_vector (bool require_integers = false) const;
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128
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129 dim_vector dims (void) const { return map.dims (); }
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130
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131 size_t byte_size (void) const;
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132
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133 // This is the number of elements in each field. The total number
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134 // of elements is numel () * nfields ().
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135 octave_idx_type numel (void) const
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136 {
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137 dim_vector dv = dims ();
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138 return dv.numel ();
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139 }
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140
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141 octave_idx_type nfields (void) const { return map.nfields (); }
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142
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143 size_t nparents (void) const { return parent_list.size (); }
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144
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145 octave_value reshape (const dim_vector& new_dims) const
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146 {
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147 octave_class retval = octave_class (*this);
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148 retval.map = retval.map_value ().reshape (new_dims);
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149 return octave_value (new octave_class (retval));
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150 }
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151
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152 octave_value resize (const dim_vector& dv, bool = false) const
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153 {
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154 octave_class retval = octave_class (*this);
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155 retval.map.resize (dv);
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156 return octave_value (new octave_class (retval));
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157 }
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158
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159 bool is_defined (void) const { return true; }
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160
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161 bool isstruct (void) const { return false; }
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162
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163 bool isobject (void) const { return true; }
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164
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165 bool is_true (void) const;
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166
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167 octave_map map_value (void) const { return map; }
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168
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169 string_vector map_keys (void) const;
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170
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171 std::list<std::string> parent_class_name_list (void) const
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172 { return parent_list; }
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173
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174 string_vector parent_class_names (void) const
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175 { return string_vector (parent_list); }
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176
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177 octave_base_value * find_parent_class (const std::string&);
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178
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179 octave_base_value * unique_parent_class (const std::string&);
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180
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Michael Goffioul <michael.goffioul@gmail.com>
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181 bool is_instance_of (const std::string&) const;
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182
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183 string_vector string_vector_value (bool pad) const;
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184
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Michael Goffioul <michael.goffioul@gmail.com>
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185 void print (std::ostream& os, bool pr_as_read_syntax = false);
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186
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187 void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const;
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188
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189 bool reconstruct_exemplar (void);
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190
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191 static void clear_exemplar_map (void);
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192
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193 bool reconstruct_parents (void);
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194
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195 bool save_ascii (std::ostream& os);
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196
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197 bool load_ascii (std::istream& is);
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198
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199 bool save_binary (std::ostream& os, bool save_as_floats);
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200
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201 bool load_binary (std::istream& is, bool swap,
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202 octave::mach_info::float_format fmt);
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203
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204 bool save_hdf5 (octave_hdf5_id loc_id, const char *name, bool save_as_floats);
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205
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206 bool load_hdf5 (octave_hdf5_id loc_id, const char *name);
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207
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208 mxArray * as_mxArray (void) const;
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209
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210 private:
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211 octave_map map;
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212
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213 public:
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214 int type_id (void) const { return t_id; }
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215 std::string type_name (void) const { return t_name; }
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216 std::string class_name (void) const { return c_name; }
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217
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218 static int static_type_id (void) { return t_id; }
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219 static std::string static_type_name (void) { return t_name; }
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220 static std::string static_class_name (void) { return "<unknown>"; }
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221 static void register_type (octave::type_info&);
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222
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223 private:
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224 static int t_id;
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225
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226 static const std::string t_name;
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227 std::string c_name;
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228 std::list<std::string> parent_list;
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229
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230 bool in_class_method (void);
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231 std::string get_current_method_class (void);
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232
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233 octave_value subsasgn_common (const octave_value& obj,
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234 const std::string& type,
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235 const std::list<octave_value_list>& idx,
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236 const octave_value& rhs);
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237
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238 int obsolete_copies;
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239
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240 public:
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241 // The list of field names and parent classes defines a class. We
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242 // keep track of each class that has been created so that we know
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243 class exemplar_info
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244 {
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245 public:
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246
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247 exemplar_info (void) : field_names (), parent_class_names () { }
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248
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249 exemplar_info (const octave_value& obj);
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250
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251 exemplar_info (const exemplar_info& x)
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252 : field_names (x.field_names),
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253 parent_class_names (x.parent_class_names) { }
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254
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255 exemplar_info& operator = (const exemplar_info& x)
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256 {
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257 if (&x != this)
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258 {
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259 field_names = x.field_names;
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260 parent_class_names = x.parent_class_names;
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261 }
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262 return *this;
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263 }
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264
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265 octave_idx_type nfields (void) const { return field_names.numel (); }
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266
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267 size_t nparents (void) const { return parent_class_names.size (); }
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268
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269 string_vector fields (void) const { return field_names; }
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270
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271 std::list<std::string> parents (void) const { return parent_class_names; }
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272
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273 bool compare (const octave_value& obj) const;
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274
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275 private:
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276
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277 string_vector field_names;
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278 std::list<std::string> parent_class_names;
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279 };
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280
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281 // A map from class names to lists of fields.
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282 static std::map<std::string, exemplar_info> exemplar_map;
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283
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284 typedef std::map<std::string, exemplar_info>::iterator
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285 exemplar_iterator;
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286 typedef std::map<std::string, exemplar_info>::const_iterator
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287 exemplar_const_iterator;
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288 };
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289
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290 #endif