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annotate src/shared-fcns.h @ 20651:e54ecb33727e

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lo-array-gripes.cc: Remove FIXME's related to buffer size. * lo-array-gripes.cc: Remove FIXME's related to buffer size. Shorten sprintf buffers from 100 to 64 characters (still well more than 19 required). Use 'const' decorator on constant value for clarity. Remove extra space between variable and array bracket.
author Rik <rik@octave.org>
date Mon, 12 Oct 2015 21:13:47 -0700
parents 4197fc428c7d
children
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1 /*
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2
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4197fc428c7d maint: Update copyright notices for 2015.
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3 Copyright (C) 2008-2015 Michael Goffioul
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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 the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 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 WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 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 (__WIN32__) && ! defined (_POSIX_VERSION)
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24
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25 #include <windows.h>
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26 #include <tlhelp32.h>
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27
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28 #ifdef _MSC_VER
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29 #define popen _popen
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30 #define pclose _pclose
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31 #endif
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32
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33 static std::string
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34 w32_get_octave_home (void)
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35 {
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36 std::string retval;
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37
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38 std::string bin_dir;
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39
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40 HANDLE h = CreateToolhelp32Snapshot (TH32CS_SNAPMODULE
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41 #ifdef TH32CS_SNAPMODULE32
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42 | TH32CS_SNAPMODULE32
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43 #endif
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44 , 0);
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45
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46 if (h != INVALID_HANDLE_VALUE)
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47 {
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48 MODULEENTRY32 mod_info;
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49
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50 ZeroMemory (&mod_info, sizeof (mod_info));
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51 mod_info.dwSize = sizeof (mod_info);
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52
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53 if (Module32First (h, &mod_info))
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54 {
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55 do
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56 {
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57 std::string mod_name (mod_info.szModule);
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58
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59 if (mod_name.find ("octave") != std::string::npos)
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60 {
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61 bin_dir = mod_info.szExePath;
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62
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63 if (bin_dir[bin_dir.length () - 1] != '\\')
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64 bin_dir.append (1, '\\');
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65
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66 break;
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67 }
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68 }
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69 while (Module32Next (h, &mod_info));
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70 }
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71
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72 CloseHandle (h);
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73 }
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74
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75 if (! bin_dir.empty ())
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76 {
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77 size_t pos = bin_dir.rfind ("\\bin\\");
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78
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79 if (pos != std::string::npos)
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80 retval = bin_dir.substr (0, pos);
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81 }
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82
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83 return retval;
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84 }
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85
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86 #endif
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87
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88 // Find the directory where the octave binary is supposed to be
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89 // installed.
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90
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91 #if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) \
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92 && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM))
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93 static const char dir_sep_char = '\\';
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94 #else
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95 static const char dir_sep_char = '/';
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96 #endif
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97
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98 static std::string
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99 octave_getenv (const std::string& name)
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100 {
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101 char *value = ::getenv (name.c_str ());
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102
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103 return value ? value : "";
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104 }
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105
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106 static std::string
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107 get_octave_home (void)
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108 {
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109 std::string oh = octave_getenv ("OCTAVE_HOME");
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110
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111 #if defined (__WIN32__) && ! defined (_POSIX_VERSION)
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112 if (oh.empty ())
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113 oh = w32_get_octave_home ();
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114 #endif
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115
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116 return oh.empty () ? std::string (OCTAVE_PREFIX) : oh;
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117 }
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118
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119 static std::string
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120 subst_octave_home (const std::string& s)
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121 {
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122 std::string retval;
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123
f1ee47866e6b use common code to get OCTAVE_HOME in main, octave-config and mkoctfile
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124 std::string octave_home = get_octave_home ();
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125
f1ee47866e6b use common code to get OCTAVE_HOME in main, octave-config and mkoctfile
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126 std::string prefix = OCTAVE_PREFIX;
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127
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128 retval = s;
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129
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130 if (octave_home != prefix)
f1ee47866e6b use common code to get OCTAVE_HOME in main, octave-config and mkoctfile
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131 {
f1ee47866e6b use common code to get OCTAVE_HOME in main, octave-config and mkoctfile
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132 octave_idx_type len = prefix.length ();
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133
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134 if (s.substr (0, len) == prefix)
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135 retval.replace (0, len, octave_home);
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136 }
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137
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138 if (dir_sep_char != '/')
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139 std::replace (retval.begin (), retval.end (), '/', dir_sep_char);
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140
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141 return retval;
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142 }