messages_members.h

00001 // std::messages implementation details, generic version -*- C++ -*-
00002 
00003 // Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc.
00004 //
00005 // This file is part of the GNU ISO C++ Library.  This library is free
00006 // software; you can redistribute it and/or modify it under the
00007 // terms of the GNU General Public License as published by the
00008 // Free Software Foundation; either version 2, or (at your option)
00009 // any later version.
00010 
00011 // This library is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 // GNU General Public License for more details.
00015 
00016 // You should have received a copy of the GNU General Public License along
00017 // with this library; see the file COPYING.  If not, write to the Free
00018 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
00019 // USA.
00020 
00021 // As a special exception, you may use this file as part of a free software
00022 // library without restriction.  Specifically, if other files instantiate
00023 // templates or use macros or inline functions from this file, or you compile
00024 // this file and link it with other files to produce an executable, this
00025 // file does not by itself cause the resulting executable to be covered by
00026 // the GNU General Public License.  This exception does not however
00027 // invalidate any other reasons why the executable file might be covered by
00028 // the GNU General Public License.
00029 
00030 //
00031 // ISO C++ 14882: 22.2.7.1.2  messages virtual functions
00032 //
00033 
00034 // Written by Benjamin Kosnik <bkoz@redhat.com>
00035 
00036   // Non-virtual member functions.
00037   template<typename _CharT>
00038      messages<_CharT>::messages(size_t __refs)
00039      : facet(__refs)
00040      { _M_c_locale_messages = _S_get_c_locale(); }
00041 
00042   template<typename _CharT>
00043      messages<_CharT>::messages(__c_locale, const char*, size_t __refs) 
00044      : facet(__refs)
00045      { _M_c_locale_messages = _S_get_c_locale(); }
00046 
00047   template<typename _CharT>
00048     typename messages<_CharT>::catalog 
00049     messages<_CharT>::open(const basic_string<char>& __s, const locale& __loc, 
00050                const char*) const
00051     { return this->do_open(__s, __loc); }
00052 
00053   // Virtual member functions.
00054   template<typename _CharT>
00055     messages<_CharT>::~messages()
00056     { _S_destroy_c_locale(_M_c_locale_messages); }
00057 
00058   template<typename _CharT>
00059     typename messages<_CharT>::catalog 
00060     messages<_CharT>::do_open(const basic_string<char>&, const locale&) const
00061     { return 0; }
00062 
00063   template<typename _CharT>
00064     typename messages<_CharT>::string_type  
00065     messages<_CharT>::do_get(catalog, int, int, 
00066                  const string_type& __dfault) const
00067     { return __dfault; }
00068 
00069   template<typename _CharT>
00070     void    
00071     messages<_CharT>::do_close(catalog) const 
00072     { }
00073 
00074    // messages_byname
00075    template<typename _CharT>
00076      messages_byname<_CharT>::messages_byname(const char* __s, size_t __refs)
00077      : messages<_CharT>(__refs) 
00078      { 
00079     if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0)
00080       {
00081         this->_S_destroy_c_locale(this->_M_c_locale_messages);
00082         this->_S_create_c_locale(this->_M_c_locale_messages, __s); 
00083       }
00084      }

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