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// { dg-do run { target c++11 } }
//
// Copyright (C) 2014-2018 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/>.
// libstdc++/64140
#include <regex>
#include <testsuite_hooks.h>
void
test01()
{
const std::regex e("z*");
const std::string s("ab");
auto it = std::sregex_iterator(s.begin(), s.end(), e);
auto end = std::sregex_iterator();
VERIFY(it != end);
VERIFY(!it->prefix().matched);
++it;
VERIFY(it != end);
VERIFY(it->prefix().matched);
++it;
VERIFY(it != end);
VERIFY(it->prefix().matched);
++it;
VERIFY(it == end);
}
int
main()
{
test01();
return 0;
}
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