libstdc++-v3/config/locale/gnu/messages_members.cc

   1 // std::messages implementation details, GNU version -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2005, 2009 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // Under Section 7 of GPL version 3, you are granted additional
  17 // permissions described in the GCC Runtime Library Exception, version
  18 // 3.1, as published by the Free Software Foundation.
  19
  20 // You should have received a copy of the GNU General Public License and
  21 // a copy of the GCC Runtime Library Exception along with this program;
  22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 //
  26 // ISO C++ 14882: 22.2.7.1.2  messages virtual functions
  27 //
  28
  29 // Written by Benjamin Kosnik <bkoz@redhat.com>
  30
  31 #include <locale>
  32 #include <bits/c++locale_internal.h>
  33
  34 _GLIBCXX_BEGIN_NAMESPACE(std)
  35
  36   // Specializations.
  37   template<>
  38     string
  39     messages<char>::do_get(catalog, int, int, const string& __dfault) const
  40     {
  41 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
  42       __c_locale __old = __uselocale(_M_c_locale_messages);
  43       const char* __msg = const_cast<const char*>(gettext(__dfault.c_str()));
  44       __uselocale(__old);
  45       return string(__msg);
  46 #else
  47       char* __old = setlocale(LC_ALL, NULL);
  48       const size_t __len = strlen(__old) + 1;
  49       char* __sav = new char[__len];
  50       memcpy(__sav, __old, __len);
  51       setlocale(LC_ALL, _M_name_messages);
  52       const char* __msg = gettext(__dfault.c_str());
  53       setlocale(LC_ALL, __sav);
  54       delete [] __sav;
  55       return string(__msg);
  56 #endif
  57     }
  58
  59 #ifdef _GLIBCXX_USE_WCHAR_T
  60   template<>
  61     wstring
  62     messages<wchar_t>::do_get(catalog, int, int, const wstring& __dfault) const
  63     {
  64 # if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
  65       __c_locale __old = __uselocale(_M_c_locale_messages);
  66       char* __msg = gettext(_M_convert_to_char(__dfault));
  67       __uselocale(__old);
  68       return _M_convert_from_char(__msg);
  69 # else
  70       char* __old = setlocale(LC_ALL, NULL);
  71       const size_t __len = strlen(__old) + 1;
  72       char* __sav = new char[__len];
  73       memcpy(__sav, __old, __len);
  74       setlocale(LC_ALL, _M_name_messages);
  75       char* __msg = gettext(_M_convert_to_char(__dfault));
  76       setlocale(LC_ALL, __sav);
  77       delete [] __sav;
  78       return _M_convert_from_char(__msg);
  79 # endif
  80     }
  81 #endif
  82
  83 _GLIBCXX_END_NAMESPACE