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

   1 // std::messages implementation details, GNU version -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2003, 2004, 2005 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  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: 22.2.7.1.2  messages functions
  32 //
  33
  34 // Written by Benjamin Kosnik <bkoz@redhat.com>
  35
  36   // Non-virtual member functions.
  37   template<typename _CharT>
  38      messages<_CharT>::messages(size_t __refs)
  39      : facet(__refs), _M_c_locale_messages(_S_get_c_locale()),
  40        _M_name_messages(_S_get_c_name())
  41      { }
  42
  43   template<typename _CharT>
  44      messages<_CharT>::messages(__c_locale __cloc, const char* __s,
  45                                 size_t __refs)
  46      : facet(__refs), _M_c_locale_messages(NULL), _M_name_messages(NULL)
  47      {
  48        const size_t __len = std::strlen(__s) + 1;
  49        char* __tmp = new char[__len];
  50        std::memcpy(__tmp, __s, __len);
  51        _M_name_messages = __tmp;
  52
  53        // Last to avoid leaking memory if new throws.
  54        _M_c_locale_messages = _S_clone_c_locale(__cloc);
  55      }
  56
  57   template<typename _CharT>
  58     typename messages<_CharT>::catalog
  59     messages<_CharT>::open(const basic_string<char>& __s, const locale& __loc,
  60                            const char* __dir) const
  61     {
  62       bindtextdomain(__s.c_str(), __dir);
  63       return this->do_open(__s, __loc);
  64     }
  65
  66   // Virtual member functions.
  67   template<typename _CharT>
  68     messages<_CharT>::~messages()
  69     {
  70       if (_M_name_messages != _S_get_c_name())
  71         delete [] _M_name_messages;
  72       _S_destroy_c_locale(_M_c_locale_messages);
  73     }
  74
  75   template<typename _CharT>
  76     typename messages<_CharT>::catalog
  77     messages<_CharT>::do_open(const basic_string<char>& __s,
  78                               const locale&) const
  79     {
  80       // No error checking is done, assume the catalog exists and can
  81       // be used.
  82       textdomain(__s.c_str());
  83       return 0;
  84     }
  85
  86   template<typename _CharT>
  87     void
  88     messages<_CharT>::do_close(catalog) const
  89     { }
  90
  91    // messages_byname
  92    template<typename _CharT>
  93      messages_byname<_CharT>::messages_byname(const char* __s, size_t __refs)
  94      : messages<_CharT>(__refs)
  95      {
  96        if (this->_M_name_messages != locale::facet::_S_get_c_name())
  97          delete [] this->_M_name_messages;
  98        char* __tmp = new char[std::strlen(__s) + 1];
  99        std::strcpy(__tmp, __s);
 100        this->_M_name_messages = __tmp;
 101
 102        if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0)
 103          {
 104            this->_S_destroy_c_locale(this->_M_c_locale_messages);
 105            this->_S_create_c_locale(this->_M_c_locale_messages, __s);
 106          }
 107      }