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annotate libinterp/corefcn/load-save.h @ 31211:8340137bb190

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maint: Merge stable to default.
author Markus Mützel <markus.muetzel@gmx.de>
date Mon, 29 Aug 2022 13:58:00 +0200
parents 796f54d4ddbf
children 2aa5bcaba504 e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1994-2022 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_load_save_h)
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27 #define octave_load_save_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 <iosfwd>
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32 #include <string>
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33
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34 #include "mach-info.h"
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35
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36 #include "ovl.h"
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37
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38 OCTAVE_NAMESPACE_BEGIN
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39
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40 class interpreter;
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41 class load_save_format;
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42 class symbol_info;
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43
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44 class load_save_system
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45 {
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46 public:
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47
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48 // FIXME: maybe MAT5 and MAT7 should be options to MAT_BINARY.
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49 // Similarly, save_as_floats may be an option for LS_BINARY,
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50 // LS_HDF5 etc.
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51
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52 enum format_type
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53 {
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54 TEXT,
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55 BINARY,
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56 MAT_ASCII,
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57 MAT_BINARY,
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58 MAT5_BINARY,
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59 MAT7_BINARY,
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60 HDF5,
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61 UNKNOWN
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62 };
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63
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64 enum format_options
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65 {
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66 // MAT_ASCII options (not exclusive)
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67 MAT_ASCII_LONG = 1,
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68 MAT_ASCII_TABS = 2,
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69 // MAT_BINARY options
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70 MAT_BINARY_V5 = 1,
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71 MAT_BINARY_V7,
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72 // zero means no option.
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73 NO_OPTION = 0
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74 };
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76 OCTINTERP_API load_save_system (interpreter& interp);
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78 OCTINTERP_API ~load_save_system (void);
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79
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80 load_save_system (const load_save_system&) = delete;
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81
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82 load_save_system& operator = (const load_save_system&) = delete;
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84 OCTINTERP_API octave_value
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85 crash_dumps_octave_core (const octave_value_list& args, int nargout);
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86
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87 bool crash_dumps_octave_core (void) const
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88 {
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89 return m_crash_dumps_octave_core;
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90 }
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91
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92 bool crash_dumps_octave_core (bool flag)
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93 {
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94 return set (m_crash_dumps_octave_core, flag);
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95 }
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96
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97 octave_value octave_core_file_limit (const octave_value_list& args,
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98 int nargout);
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99
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100 double octave_core_file_limit (void) const
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101 {
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102 return m_octave_core_file_limit;
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103 }
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104
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105 double octave_core_file_limit (double limit)
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106 {
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107 return set (m_octave_core_file_limit, limit);
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108 }
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109
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110 OCTINTERP_API octave_value
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111 octave_core_file_name (const octave_value_list& args, int nargout);
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112
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113 std::string octave_core_file_name (void) const
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114 {
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115 return m_octave_core_file_name;
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116 }
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117
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118 std::string octave_core_file_name (const std::string& file)
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119 {
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120 return set (m_octave_core_file_name, file);
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121 }
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122
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123 OCTINTERP_API octave_value
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124 save_default_options (const octave_value_list& args, int nargout);
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125
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126 std::string save_default_options (void) const
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127 {
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128 return m_save_default_options;
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129 }
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130
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131 std::string save_default_options (const std::string& options)
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132 {
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133 return set (m_save_default_options, options);
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134 }
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135
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136 OCTINTERP_API octave_value
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137 octave_core_file_options (const octave_value_list& args, int nargout);
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138
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139 std::string octave_core_file_options (void) const
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140 {
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141 return m_octave_core_file_options;
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142 }
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143
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144 std::string octave_core_file_options (const std::string& options)
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145 {
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146 return set (m_octave_core_file_options, options);
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147 }
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148
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149 OCTINTERP_API octave_value
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150 save_header_format_string (const octave_value_list& args, int nargout);
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151
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152 std::string save_header_format_string (void) const
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153 {
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154 return m_save_header_format_string;
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155 }
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156
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157 std::string save_header_format_string (const std::string& format)
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158 {
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159 return set (m_save_header_format_string, format);
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160 }
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161
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162 static OCTINTERP_API load_save_format
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163 get_file_format (const std::string& fname, const std::string& orig_fname,
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164 bool& use_zlib, bool quiet = false);
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165
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166 // FIXME: this is probably not the best public interface for
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167 // loading and saving variables, but it is what is currently
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168 // needed for the Fload and Fsave functions.
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169
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170 OCTINTERP_API octave_value
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171 load_vars (std::istream& stream, const std::string& orig_fname,
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172 const load_save_format& fmt, mach_info::float_format flt_fmt,
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173 bool list_only, bool swap, bool verbose,
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174 const string_vector& argv, int argv_idx, int argc, int nargout);
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175
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176 static OCTINTERP_API string_vector
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177 parse_save_options (const string_vector& argv, load_save_format& fmt,
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178 bool& append, bool& save_as_floats, bool& use_zlib);
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179
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180 static OCTINTERP_API string_vector
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181 parse_save_options (const std::string& arg, load_save_format& fmt,
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182 bool& append, bool& save_as_floats, bool& use_zlib);
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183
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184 OCTINTERP_API void
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185 save_vars (const string_vector& argv, int argv_idx, int argc,
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186 std::ostream& os, const load_save_format& fmt,
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187 bool save_as_floats, bool write_header_info);
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188
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189 OCTINTERP_API void dump_octave_core (void);
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190
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191 OCTINTERP_API octave_value_list
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192 load (const octave_value_list& args = octave_value_list (),
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193 int nargout = 0);
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194
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195 OCTINTERP_API octave_value_list
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196 save (const octave_value_list& args = octave_value_list (),
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197 int nargout = 0);
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198
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199 private:
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200
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201 interpreter& m_interpreter;
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202
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203 // Write octave-workspace file if Octave crashes or is killed by a
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204 // signal.
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205 bool m_crash_dumps_octave_core;
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206
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207 // The maximum amount of memory (in kilobytes) that we will
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208 // attempt to write to the Octave core file.
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209 double m_octave_core_file_limit;
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210
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211 // The name of the Octave core file.
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212 std::string m_octave_core_file_name;
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213
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214 // The default output format. May be one of "binary", "text",
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215 // "mat-binary", or "hdf5".
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216 std::string m_save_default_options;
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217
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218 // The output format for Octave core files.
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219 std::string m_octave_core_file_options;
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220
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221 // The format string for the comment line at the top of
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222 // text-format save files. Passed to strftime. Should begin with
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223 // '#' and contain no newline characters.
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224 std::string m_save_header_format_string;
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225
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226 OCTINTERP_API void
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227 write_header (std::ostream& os, const load_save_format& fmt);
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228
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229 OCTINTERP_API std::size_t
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230 save_vars (std::ostream& os, const std::string& pattern,
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231 const load_save_format& fmt, bool save_as_floats);
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232
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233 OCTINTERP_API void
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234 do_save (std::ostream& os, const octave_value& tc, const std::string& name,
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235 const std::string& help, bool global, const load_save_format& fmt,
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236 bool save_as_floats);
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237
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238 OCTINTERP_API void
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239 do_save (std::ostream& os, const symbol_info& syminfo,
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240 const load_save_format& fmt, bool save_as_floats);
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241
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242 OCTINTERP_API std::size_t
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243 save_fields (std::ostream& os, const octave_scalar_map& m,
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244 const std::string& pattern, const load_save_format& fmt,
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245 bool save_as_floats);
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246
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247 OCTINTERP_API void
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248 dump_octave_core (std::ostream& os, const char *fname,
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249 const load_save_format& fmt, bool save_as_floats);
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250
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251 OCTINTERP_API void
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252 install_loaded_variable (const std::string& name, const octave_value& val,
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253 bool global, const std::string& /*doc*/);
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254
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255 static OCTINTERP_API std::string init_save_header_format (void);
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256
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257 static OCTINTERP_API load_save_format
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258 get_file_format (std::istream& file, const std::string& filename);
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259
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260 template <typename T>
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261 T set (T& var, const T& new_val)
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262 {
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263 T old_val = var;
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264 var = new_val;
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265 return old_val;
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266 }
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267 };
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268
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269 class load_save_format
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270 {
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271 public:
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272
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273 load_save_format (load_save_system::format_type type,
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274 load_save_system::format_options options = load_save_system::NO_OPTION)
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275 : m_type (type), m_options (options)
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276 { }
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277
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278 void set_type (load_save_system::format_type type) { m_type = type; }
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279
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280 load_save_system::format_type type (void) const { return m_type; }
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281
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282 void set_option (load_save_system::format_options option)
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283 {
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284 m_options |= option;
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285 }
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286
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287 int options (void) const { return m_options; }
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288
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289 private:
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290
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291 load_save_system::format_type m_type;
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292 int m_options;
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293 };
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294
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295 OCTAVE_NAMESPACE_END
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296
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362029cc0202 * load-save.h (dump_octave_core): Deprecate function. Change all uses.
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297 OCTAVE_DEPRECATED (7, "use 'load_save_system::dump_octave_core' instead")
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298 extern OCTINTERP_API void dump_octave_core (void);
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299
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91ab3cfc2376 [project @ 1994-08-13 20:11:17 by jwe]
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300 #endif