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// { dg-options "-std=gnu++0x" }
// 2010-08-11 Paolo Carlini <paolo.carlini@oracle.com>
//
// Copyright (C) 2010 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/>.
#include <forward_list>
#include <testsuite_hooks.h>
// 23.3.3.5 forward_list operations [forwardlist.ops]
// Used to cause many Valgrind errors: LWG 526-type situation.
void test01()
{
bool test __attribute__((unused)) = true;
std::forward_list<int> fl1;
fl1.push_front(1);
fl1.push_front(2);
fl1.push_front(3);
fl1.push_front(4);
fl1.push_front(1);
fl1.remove(*fl1.begin());
VERIFY( std::distance(fl1.begin(), fl1.end()) == 3 );
auto it1 = fl1.begin();
VERIFY( *it1 == 4 );
++it1;
VERIFY( *it1 == 3 );
++it1;
VERIFY( *it1 == 2 );
std::forward_list<int> fl2;
fl2.push_front(3);
fl2.push_front(3);
fl2.push_front(3);
fl2.push_front(3);
fl2.push_front(3);
auto it2 = fl2.begin();
++it2;
++it2;
fl2.remove(*it2);
VERIFY( std::distance(fl2.begin(), fl2.end()) == 0 );
std::forward_list<int> fl3;
fl3.push_front(1);
fl3.push_front(2);
fl3.push_front(3);
fl3.push_front(3);
fl3.push_front(3);
auto it3 = fl3.begin();
++it3;
++it3;
fl3.remove(*it3);
VERIFY( std::distance(fl3.begin(), fl3.end()) == 2 );
it3 = fl3.begin();
VERIFY( *it3 == 2 );
++it3;
VERIFY( *it3 == 1 );
}
int main()
{
test01();
return 0;
}
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