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// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2015-2016 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 moved_to of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <experimental/memory>
#include <testsuite_hooks.h>
using std::experimental::observer_ptr;
struct B {};
struct D : B {};
void test01()
{
observer_ptr<int> a;
VERIFY(std::hash<observer_ptr<int>>{}(a) == std::hash<int*>{}(nullptr));
}
void test02()
{
int x{};
observer_ptr<int> a{&x};
VERIFY(std::hash<observer_ptr<int>>{}(a) == std::hash<int*>{}(&x));
}
int main()
{
test01();
test02();
}
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