annotate liboctave/system/oct-env.h @ 22865:89756f2f085b

use c++11 style for deleting default copy constructor and assignment operator * octave-gui.h, resource-manager.h, shortcut-manager.h, base-text-renderer.h, c-file-ptr-stream.h, dynamic-ld.cc, dynamic-ld.h, event-queue.h, ft-text-renderer.cc, gl-render.cc, gl-render.h, graphics.cc, graphics.in.h, interpreter.h, mex.cc, mxarray.in.h, oct-fstrm.h, oct-iostrm.h, oct-prcstrm.h, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, octave-link.h, pager.h, profiler.h, sighandlers.cc, symtab.h, text-renderer.h, zfstream.h, __init_fltk__.cc, ov-builtin.h, ov-dld-fcn.h, ov-fcn.h, ov-mex-fcn.h, ov-typeinfo.h, ov-usr-fcn.h, octave.h, lex.h, parse.h, pt-arg-list.h, pt-array-list.h, pt-assign.h, pt-binop.h, pt-bp.h, pt-cbinop.h, pt-cell.h, pt-check.h, pt-classdef.h, pt-cmd.h, pt-colon.h, pt-const.h, pt-decl.h, pt-eval.h, pt-except.h, pt-exp.h, pt-fcn-handle.h, pt-funcall.h, pt-id.h, pt-idx.h, pt-jump.h, pt-loop.h, pt-mat.h, pt-misc.h, pt-pr-code.h, pt-select.h, pt-stmt.h, pt-unop.h, pt-walk.h, pt.h, token.h, Array.cc, idx-vector.h, oct-fftw.h, sparse-chol.cc, sparse-qr.cc, file-ops.h, mach-info.h, oct-env.h, action-container.h, cmd-edit.cc, cmd-edit.h, cmd-hist.h, oct-locbuf.h, oct-mutex.h, oct-shlib.cc, oct-sort.h, pathsearch.h, singleton-cleanup.h, unwind-prot.h, url-transfer.cc, url-transfer.h: Use C++11 style "= delete" declaration to declare copy constructors and assignment operators for classes that should not be copied.
author John W. Eaton <jwe@octave.org>
date Mon, 05 Dec 2016 22:59:37 -0500
parents 3a2b891d0b33
children f75d289645ec
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1 /*
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2
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3 Copyright (C) 1996-2016 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if ! defined (octave_oct_env_h)
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24 #define octave_oct_env_h 1
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26 #include "octave-config.h"
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28 #include <string>
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30 namespace octave
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31 {
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32 namespace sys
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33 {
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34 class
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35 OCTAVE_API
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36 env
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37 {
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38 protected:
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40 env (void);
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42 public:
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44 static std::string polite_directory_format (const std::string& name);
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46 static bool absolute_pathname (const std::string& s);
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48 static bool rooted_relative_pathname (const std::string& s);
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49
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50 static std::string base_pathname (const std::string& s);
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52 static std::string
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53 make_absolute (const std::string& s,
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54 const std::string& dot_path = get_current_directory ());
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56 static std::string get_current_directory (void);
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58 static std::string get_home_directory (void);
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60 static std::string get_temp_directory (void);
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62 static std::string get_program_name (void);
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64 static std::string get_program_invocation_name (void);
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66 static std::string get_user_name (void);
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68 static std::string get_host_name (void);
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70 static std::string getenv (const std::string& name);
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71
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72 static void putenv (const std::string& name, const std::string& value);
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74 static bool have_x11_display (void);
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76 static bool chdir (const std::string& newdir);
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78 static void set_program_name (const std::string& s);
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80 private:
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82 static bool instance_ok (void);
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84 std::string do_polite_directory_format (const std::string& name) const;
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86 bool do_absolute_pathname (const std::string& s) const;
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88 bool do_rooted_relative_pathname (const std::string& s) const;
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90 std::string do_base_pathname (const std::string& s) const;
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92 std::string do_make_absolute (const std::string& s,
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93 const std::string& dot_path) const;
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95 std::string do_getcwd (void) const;
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97 std::string do_get_home_directory (void) const;
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99 std::string do_get_temp_directory (void) const;
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101 std::string do_get_user_name (void) const;
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103 std::string do_get_host_name (void) const;
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105 std::string do_getenv (const std::string& name) const;
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107 void do_putenv (const std::string& name, const std::string& value) const;
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109 bool do_chdir (const std::string& newdir);
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111 void do_set_program_name (const std::string& s) const;
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113 void pathname_backup (std::string& path, int n) const;
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115 void error (int) const;
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117 void error (const std::string&) const;
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119 // No copying!
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121 env (const env&) = delete;
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123 env& operator = (const env&) = delete;
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125 // The real thing.
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126 static env *instance;
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128 static void cleanup_instance (void) { delete instance; instance = 0; }
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129
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130 // TRUE means follow symbolic links that point to directories just
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131 // as if they are real directories.
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132 bool follow_symbolic_links;
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134 // TRUE means that pwd always give verbatim directory, regardless
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135 // of symbolic link following.
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136 bool verbatim_pwd;
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138 // Where are we?
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139 mutable std::string current_directory;
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140
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141 // Etc.
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142 mutable std::string prog_name;
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143
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144 mutable std::string prog_invocation_name;
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145
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146 mutable std::string user_name;
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147
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148 mutable std::string host_name;
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149 };
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150 }
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151 }
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152
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153 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS)
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154
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155 OCTAVE_DEPRECATED ("use 'octave::sys::env' instead")
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156 typedef octave::sys::env octave_env;
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157
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158 #endif
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159
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160 #endif
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161