libstdc++-v3/config/locale/c_locale_gnu.cc

   1 // Wrapper for underlying C-language localization -*- C++ -*-
   2
   3 // Copyright (C) 2001 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 2, 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 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 //
  31 // ISO C++ 14882: 22.8  Standard locale categories.
  32 //
  33
  34 // Written by Benjamin Kosnik <bkoz@redhat.com>
  35
  36 #include <locale>
  37 #include <stdexcept>
  38 #include <langinfo.h>
  39
  40 namespace std
  41 {
  42   void
  43   locale::facet::_S_create_c_locale(__c_locale& __cloc, const char* __s)
  44   {
  45     // XXX
  46     // Perhaps locale::categories could be made equivalent to LC_*_MASK ?
  47     // _M_c_locale = __newlocale(1 << LC_ALL, __s, 0);
  48     // _M_c_locale = __newlocale(locale::all, __s, 0);
  49     __cloc = __newlocale(1 << LC_ALL, __s, 0);
  50     if (!__cloc)
  51       {
  52         // This named locale is not supported by the underlying OS.
  53         __throw_runtime_error("attempt to create locale from unknown name");
  54       }
  55   }
  56
  57   void
  58   locale::facet::_S_destroy_c_locale(__c_locale& __cloc)
  59   {
  60     if (__cloc)
  61       __freelocale(__cloc);
  62   }
  63
  64   __c_locale
  65   locale::facet::_S_clone_c_locale(__c_locale& __cloc)
  66   { return __duplocale(__cloc); }
  67 }  // namespace std