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// Copyright (C) 2020 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/>.
// 29.8.4.4 basic_ostringstream member functions [ostringstream.members]
// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
// { dg-require-effective-target cxx11-abi }
#include <sstream>
#include <string_view>
#include <testsuite_hooks.h>
int
main()
{
std::wstring s(L"This is a test");
std::wostringstream stm(s);
VERIFY( stm.view() == s );
VERIFY( stm.view() == const_cast<const std::wostringstream&>(stm).view() );
s += L" with a longer string";
stm << s;
VERIFY( stm.view() == s );
s = L"This is a shorter string";
stm.str(s);
VERIFY( stm.view() == s );
}
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