test/std/utilities/utility/pairs/pairs.pair/default.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     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.
//
//===----------------------------------------------------------------------===//

// <utility>

// template <class T1, class T2> struct pair

// constexpr pair();

#include <utility>
#include <cassert>

int main()
{
    {
    typedef std::pair<float, short*> P;
    P p;
    assert(p.first == 0.0f);
    assert(p.second == nullptr);
    }
    
#if _LIBCPP_STD_VER > 11
    {
    typedef std::pair<float, short*> P;
    constexpr P p;
    static_assert(p.first == 0.0f, "");
    static_assert(p.second == nullptr, "");
    }
#endif
}