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// Copyright (C) 2013-2018 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/>.
//
// { dg-do run { target c++11 } }
// { dg-require-debug-mode "" }
#include <unordered_set>
#include <testsuite_hooks.h>
void test01()
{
using namespace __gnu_debug;
std::unordered_set<int> u = { 0, 1, 2 };
VERIFY( __check_dereferenceable(u.begin()) );
auto it = u.begin();
VERIFY( __check_dereferenceable(it) );
VERIFY( __check_dereferenceable(u.cbegin()) );
auto cit = u.begin();
VERIFY( __check_dereferenceable(cit) );
VERIFY( !__check_dereferenceable(u.end()) );
it = u.end();
VERIFY( !__check_dereferenceable(it) );
auto bucket = u.bucket(0);
VERIFY( __check_dereferenceable(u.begin(bucket)) );
auto lit = u.begin(bucket);
VERIFY( __check_dereferenceable(lit) );
VERIFY( !__check_dereferenceable(u.end(bucket)) );
}
void test02()
{
using namespace __gnu_debug;
std::unordered_set<int> u = { 0, 1, 2 };
VERIFY( !__check_singular(u.end()) );
auto it = u.end();
VERIFY( !__check_singular(it) );
VERIFY( !__check_singular(u.begin()) );
it = u.begin();
VERIFY( !__check_singular(it) );
u.clear();
VERIFY( it._M_singular() );
VERIFY( __check_singular(it) );
it = u.end();
VERIFY( !it._M_singular() );
VERIFY( !__check_singular(it) );
u = { 0, 1, 2 };
auto bucket = u.bucket(0);
VERIFY( !__check_singular(u.begin(bucket)) );
auto lit = u.begin(bucket);
VERIFY( !__check_singular(lit) );
VERIFY( !__check_singular(u.end(bucket)) );
u.clear();
VERIFY( __check_singular(lit) );
}
int main()
{
test01();
test02();
return 0;
}
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