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annotate src/shared-fcns.h @ 20654:b65888ec820e draft default tip gccjit

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dmalcom gcc jit import
author Stefan Mahr <dac922@gmx.de>
date Fri, 27 Feb 2015 16:59:36 +0100
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
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124 std::string octave_home = get_octave_home ();
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125
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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)
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131 {
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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 }