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// std::codecvt implementation details, generic version -*- C++ -*-
// Copyright (C) 2002 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
//
// ISO C++ 14882: 22.2.1.5 - Template class codecvt
//
// Written by Benjamin Kosnik <bkoz@redhat.com>
#include <locale>
namespace std
{
// Specializations.
#ifdef _GLIBCPP_USE_WCHAR_T
codecvt_base::result
codecvt<wchar_t, char, mbstate_t>::
do_out(state_type& __state, const intern_type* __from,
const intern_type* __from_end, const intern_type*& __from_next,
extern_type* __to, extern_type* __to_end,
extern_type*& __to_next) const
{
result __ret = error;
size_t __len = min(__from_end - __from, __to_end - __to);
size_t __conv = wcsrtombs(__to, &__from, __len, &__state);
if (__conv == __len)
{
__from_next = __from;
__to_next = __to + __conv;
__ret = ok;
}
else if (__conv > 0 && __conv < __len)
{
__from_next = __from;
__to_next = __to + __conv;
__ret = partial;
}
else
__ret = error;
return __ret;
}
codecvt_base::result
codecvt<wchar_t, char, mbstate_t>::
do_in(state_type& __state, const extern_type* __from,
const extern_type* __from_end, const extern_type*& __from_next,
intern_type* __to, intern_type* __to_end,
intern_type*& __to_next) const
{
result __ret = error;
size_t __len = min(__from_end - __from, __to_end - __to);
size_t __conv = mbsrtowcs(__to, &__from, __len, &__state);
if (__conv == __len)
{
__from_next = __from;
__to_next = __to + __conv;
__ret = ok;
}
else if (__conv > 0 && __conv < __len)
{
__from_next = __from;
__to_next = __to + __conv;
__ret = partial;
}
else
__ret = error;
return __ret;
}
#endif
}
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