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// Copyright (C) 2003-2015 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 3, 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 COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 27.8.1.4 Overridden virtual functions
#include <fstream>
typedef unsigned char Char;
namespace std
{
template <>
class codecvt<Char, char, mbstate_t> :
public locale::facet, public codecvt_base
{
public:
typedef Char intern_type;
typedef char extern_type;
typedef mbstate_t state_type;
explicit codecvt(size_t refs = 0)
: locale::facet(refs) { }
result out(mbstate_t& state, const Char* from,
const Char* from_end, const Char*& from_next,
char* to, char* to_limit, char*& to_next) const
{
return do_out(state, from, from_end, from_next,
to, to_limit, to_next);
}
result in(mbstate_t& state, const char* from,
const char* from_end, const char*& from_next,
Char* to, Char* to_limit, Char*& to_next) const
{
return do_in(state, from, from_end, from_next,
to, to_limit, to_next);
}
result unshift(mbstate_t& state, char* to, char* to_end,
char*& to_next) const
{ return do_unshift(state, to, to_end, to_next); }
int length(mbstate_t& state, const char* from,
const char* from_end, size_t max) const
{ return do_length(state, from, from_end, max); }
int encoding() const throw()
{ return do_encoding(); }
bool always_noconv() const throw()
{ return do_always_noconv(); }
int max_length() const throw()
{ return do_max_length(); }
static locale::id id;
protected:
virtual result do_out(mbstate_t&, const Char*,
const Char*,
const Char*&, char*,
char*, char*&) const
{ return ok; }
virtual result do_in(mbstate_t&, const char*,
const char*,
const char*&, Char*,
Char*, Char*&) const
{ return ok; }
virtual result do_unshift(mbstate_t&, char*, char*,
char*&) const
{ return noconv; }
virtual int do_length(mbstate_t&, const char*,
const char*, size_t) const
{ return 1; }
virtual int do_encoding() const throw()
{ return 1; }
virtual bool do_always_noconv() const throw()
{ return false; }
virtual int do_max_length() const throw()
{ return 1; }
};
locale::id codecvt<Char, char, mbstate_t>::id;
}
// libstdc++/12206
void test01()
{
using namespace std;
bool test __attribute__((unused)) = true;
locale loc(locale::classic(),
new codecvt<Char, char, std::mbstate_t>);
locale::global(loc);
basic_filebuf<Char, char_traits<Char> > fb;
loc = locale::classic();
locale::global(loc);
fb.pubimbue(loc);
fb.open("tmp_12206", ios_base::out);
try
{
fb.pubseekoff(0, ios_base::cur);
}
catch (std::exception&)
{
}
fb.close();
}
int main()
{
test01();
return 0;
}
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