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// 2004-11-29 Paolo Carlini <pcarlini@suse.de>
// 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/>.
// 21.3.3 string capacity
// { dg-options "-DMAX_SIZE=16" { target simulator } }
#ifndef MAX_SIZE
#define MAX_SIZE 20
#endif
#include <string>
#include <testsuite_hooks.h>
// libstdc++/18654
void test01()
{
using namespace std;
typedef string::size_type size_type;
#if _GLIBCXX_USE_CXX11_ABI
// Can't shrink below small string size.
const size_type minsize = string().capacity() + 1;
#else
// Exact shrink-to-size and shrink-to-fit
const size_type minsize = 2 << 0;
#endif
const size_type maxsize = 2 << MAX_SIZE;
for (size_type i = minsize; i <= maxsize; i *= 2)
{
string str(i, 'x');
str.reserve(3 * i);
str.reserve(2 * i);
VERIFY( str.capacity() == 2 * i );
str.reserve();
VERIFY( str.capacity() == i );
}
}
int main()
{
test01();
return 0;
}
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