//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// <cuda/std/tuple>

// template <class... Types> class tuple;

// void swap(tuple& rhs);

// UNSUPPORTED: c++98, c++03
// Internal compiler error in 14.24
// XFAIL: msvc-19.20, msvc-19.21, msvc-19.22, msvc-19.23, msvc-19.24, msvc-19.25

#include <cuda/std/tuple>
#include <cuda/std/cassert>

#include "test_macros.h"
#include "MoveOnly.h"

int main(int, char**)
{
    {
        typedef cuda::std::tuple<> T;
        T t0;
        T t1;
        t0.swap(t1);
    }
#if !(defined(_MSC_VER) && _MSC_VER < 1916)
    {
        typedef cuda::std::tuple<MoveOnly> T;
        T t0(MoveOnly(0));
        T t1(MoveOnly(1));
        t0.swap(t1);
        assert(cuda::std::get<0>(t0) == 1);
        assert(cuda::std::get<0>(t1) == 0);
    }
    {
        typedef cuda::std::tuple<MoveOnly, MoveOnly> T;
        T t0(MoveOnly(0), MoveOnly(1));
        T t1(MoveOnly(2), MoveOnly(3));
        t0.swap(t1);
        assert(cuda::std::get<0>(t0) == 2);
        assert(cuda::std::get<1>(t0) == 3);
        assert(cuda::std::get<0>(t1) == 0);
        assert(cuda::std::get<1>(t1) == 1);
    }
    {
        typedef cuda::std::tuple<MoveOnly, MoveOnly, MoveOnly> T;
        T t0(MoveOnly(0), MoveOnly(1), MoveOnly(2));
        T t1(MoveOnly(3), MoveOnly(4), MoveOnly(5));
        t0.swap(t1);
        assert(cuda::std::get<0>(t0) == 3);
        assert(cuda::std::get<1>(t0) == 4);
        assert(cuda::std::get<2>(t0) == 5);
        assert(cuda::std::get<0>(t1) == 0);
        assert(cuda::std::get<1>(t1) == 1);
        assert(cuda::std::get<2>(t1) == 2);
    }
#endif
  return 0;
}
