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// Copyright (C) 2005-2019 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/>.
// 27.6.2.5.4 basic_ostream character inserters
#include <string>
#include <ostream>
#include <sstream>
#include <testsuite_hooks.h>
// ostringstream and positioning, multiple writes
// http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00326.html
void test06()
{
const wchar_t carray01[] = L"mos def & talib kweli are black star";
// normal
std::wostringstream ostr1(L"mos def");
VERIFY( ostr1.str() == L"mos def" );
ostr1 << L" & talib kweli"; // should overwrite first part of buffer
VERIFY( ostr1.str() == L" & talib kweli" );
ostr1 << L" are black star"; // should append to string from above
VERIFY( ostr1.str() != carray01 );
VERIFY( ostr1.str() == L" & talib kweli are black star" );
// appending
std::wostringstream ostr2(L"blackalicious",
std::ios_base::out | std::ios_base::ate);
VERIFY( ostr2.str() == L"blackalicious" );
ostr2 << L" NIA "; // should not overwrite first part of buffer
VERIFY( ostr2.str() == L"blackalicious NIA " );
ostr2 << L"4: deception (5:19)"; // should append to full string from above
VERIFY( ostr2.str() == L"blackalicious NIA 4: deception (5:19)" );
}
int main()
{
test06();
return 0;
}
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