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// { dg-do run { target c++11 } }
// Copyright (C) 2008-2018 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/>.
// 23.2.3.n forward_list xxx [lib.forward_list.xxx]
#include <forward_list>
#include <testsuite_hooks.h>
// This test verifies the following:
// cbegin
// erase_after one iterator
// pos is useable and points to current element
void
test01()
{
std::forward_list<int> fl({0, 1, 2, 3, 4, 5, 6, 7, 8, 9});
std::forward_list<int>::const_iterator pos = fl.cbegin();
++pos;
VERIFY( *pos == 1 );
std::forward_list<int>::iterator pos2 = fl.erase_after(pos);
VERIFY( *pos == 1 );
++pos;
VERIFY( *pos == 3 );
VERIFY( pos == pos2 );
}
// This test verifies the following:
// cbegin
// erase_after iterator range
// pos is useable and points to current element
void
test02()
{
std::forward_list<int> fl({0, 1, 2, 3, 4, 5, 6, 7, 8, 9});
std::forward_list<int>::const_iterator pos = fl.cbegin();
++pos;
VERIFY( *pos == 1 );
std::forward_list<int>::iterator stop = fl.begin();
++stop;
++stop;
++stop;
++stop;
VERIFY( *stop == 4 );
std::forward_list<int>::iterator pos2 = fl.erase_after(pos, stop);
VERIFY( pos2 == stop );
VERIFY( *pos == 1 );
++pos;
VERIFY( *pos == 4 );
VERIFY( std::distance(fl.begin(), fl.end()) == 8 );
std::forward_list<int>::iterator pos3
= fl.erase_after(pos, fl.end());
VERIFY( pos3 == fl.end() );
VERIFY( ++pos == fl.end() );
VERIFY( std::distance(fl.begin(), fl.end()) == 3 );
std::forward_list<int>::iterator pos4
= fl.erase_after(fl.before_begin(), pos);
VERIFY( pos4 == pos );
VERIFY( std::distance(fl.begin(), fl.end()) == 0 );
VERIFY( fl.empty() );
}
int
main()
{
test01();
test02();
return 0;
}
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