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// 2004-02-14 Petur Runolfsson <peturr02@ru.is>
// Copyright (C) 2004-2018 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>
#include <locale>
class Cvt : public std::codecvt<wchar_t, char, std::mbstate_t>
{
protected:
virtual std::codecvt_base::result
do_out(std::mbstate_t&, const wchar_t* from, const wchar_t*,
const wchar_t*& from_next, char* to, char*,
char*& to_next) const
{
from_next = from;
to_next = to;
return std::codecvt_base::error;
}
virtual bool
do_always_noconv() const throw()
{ return false; }
};
// libstdc++/13858
void test01()
{
using namespace std;
wfilebuf fb;
fb.pubimbue(locale(locale::classic(), new Cvt));
fb.open("tmp_13858_wchar_t", ios_base::out);
try
{
fb.sputc(L'a');
fb.sputc(L'b');
fb.pubimbue(locale::classic());
fb.sputc(L'c');
fb.pubsync();
fb.close();
}
catch (std::exception&)
{
}
}
int main()
{
test01();
return 0;
}
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