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// { dg-options "-std=gnu++14" }
// { dg-do compile }

// 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 <type_traits>

static_assert(std::is_same<
              std::experimental::observer_ptr<int>::element_type,
              int>::value, "");
static_assert(std::is_same<
              std::experimental::observer_ptr<const int>::element_type,
              const int>::value, "");
static_assert(std::is_same<
              std::experimental::observer_ptr<volatile int>::element_type,
              volatile int>::value, "");