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

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <utility>

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

// pair(pair const&) = default;
// pair(pair&&) = default;

#include <utility>
#include <cassert>

#include "test_macros.h"

struct Dummy {
  Dummy(Dummy const&) = delete;
  Dummy(Dummy &&) = default;
};

int main(int, char**)
{
    typedef std::pair<int, short> P;
    {
        static_assert(std::is_copy_constructible<P>::value, "");
#if !defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
        static_assert(std::is_trivially_copy_constructible<P>::value, "");
#endif
    }
#if TEST_STD_VER >= 11
    {
        static_assert(std::is_move_constructible<P>::value, "");
#if !defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
        static_assert(std::is_trivially_move_constructible<P>::value, "");
#endif
    }
    {
        using P1 = std::pair<Dummy, int>;
        static_assert(!std::is_copy_constructible<P1>::value, "");
        static_assert(!std::is_trivially_copy_constructible<P1>::value, "");
        static_assert(std::is_move_constructible<P1>::value, "");
#if !defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
        static_assert(std::is_trivially_move_constructible<P1>::value, "");
#endif
    }
#endif

  return 0;
}