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// { dg-options "-std=gnu++11" }
// Copyright (C) 2015 Free Software Foundation
//
// 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/>.
// 22.3.3.2.3 Buffer conversions
#include <locale>
#include <sstream>
#include <testsuite_hooks.h>
template<typename Elem>
struct cvt : std::codecvt<Elem, char, std::mbstate_t> { };
template<typename Elem>
using buf_conv = std::wbuffer_convert<cvt<Elem>, Elem>;
using std::string;
using std::stringstream;
using std::wstring;
using std::wstringstream;
void test01()
{
buf_conv<wchar_t> buf;
std::stringbuf sbuf;
VERIFY( buf.rdbuf() == nullptr );
VERIFY( buf.rdbuf(&sbuf) == nullptr );
VERIFY( buf.rdbuf() == &sbuf );
VERIFY( buf.rdbuf(nullptr) == &sbuf );
}
void test02()
{
std::stringbuf sbuf;
buf_conv<char> buf(&sbuf); // noconv
stringstream ss;
ss.std::ios::rdbuf(&buf);
string input = "King for a day...";
ss << input << std::flush;
string output = sbuf.str();
VERIFY( input == output );
}
void test03()
{
std::stringbuf sbuf;
buf_conv<wchar_t> buf(&sbuf);
wstringstream ss;
ss.std::wios::rdbuf(&buf);
wstring input = L"Fool for a lifetime";
ss << input << std::flush;
string output = sbuf.str();
VERIFY( output == "Fool for a lifetime" );
}
int main()
{
test01();
test02();
test03();
}
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