//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <queue>

// template <class T, class Container = vector<T>,
//           class Compare = less<typename Container::value_type>>
// class priority_queue
// {
// public:
//     typedef Container                                container_type;
//     typedef typename container_type::value_type      value_type;
//     typedef typename container_type::reference       reference;
//     typedef typename container_type::const_reference const_reference;
//     typedef typename container_type::size_type       size_type;
//
// protected:
//     container_type c;
//     Compare comp;

#include <stack>
#include <cassert>
#include <type_traits>

int main()
{
//  LWG#2566 says that the first template param must match the second one's value type
	std::stack<double, std::deque<int>> t;
}