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// { dg-do run { target c++11 } }
// 2011-10-28 Paolo Carlini <paolo.carlini@oracle.com>
// Copyright (C) 2011-2018 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/>.
//
#include <unordered_set>
#include <testsuite_hooks.h>
void test01()
{
using namespace std;
unordered_set<int> us0;
VERIFY( us0.count(0) == 0 );
VERIFY( us0.count(1) == 0 );
us0.insert(1);
VERIFY( us0.count(0) == 0 );
VERIFY( us0.count(1) == 1 );
us0.insert(1);
VERIFY( us0.count(0) == 0 );
VERIFY( us0.count(1) == 1 );
us0.insert(2);
VERIFY( us0.count(2) == 1 );
us0.insert(3);
us0.insert(3);
us0.insert(3);
VERIFY( us0.count(3) == 1 );
us0.erase(2);
VERIFY( us0.count(2) == 0 );
us0.erase(0);
VERIFY( us0.count(0) == 0 );
unordered_set<int> us1(us0);
VERIFY( us1.count(0) == 0 );
VERIFY( us1.count(1) == 1 );
VERIFY( us1.count(2) == 0 );
VERIFY( us1.count(3) == 1 );
us0.clear();
VERIFY( us0.count(0) == 0 );
VERIFY( us0.count(1) == 0 );
VERIFY( us0.count(2) == 0 );
VERIFY( us0.count(3) == 0 );
us1.insert(4);
us1.insert(5);
us1.insert(5);
us1.insert(5);
us1.insert(5);
VERIFY( us1.count(4) == 1 );
VERIFY( us1.count(5) == 1 );
us1.erase(1);
VERIFY( us1.count(1) == 0 );
us1.erase(us1.find(5));
VERIFY( us1.count(5) == 0 );
us1.insert(1);
us1.insert(1);
VERIFY( us1.count(1) == 1 );
us1.erase(5);
VERIFY( us1.count(5) == 0 );
us1.erase(us1.find(4));
VERIFY( us1.count(4) == 0 );
us1.clear();
VERIFY( us1.count(0) == 0 );
VERIFY( us1.count(1) == 0 );
VERIFY( us1.count(2) == 0 );
VERIFY( us1.count(3) == 0 );
VERIFY( us1.count(4) == 0 );
VERIFY( us1.count(5) == 0 );
}
int main()
{
test01();
return 0;
}
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