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

// UNSUPPORTED: msvc

// <utility>

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

// template<class U, class V> pair& operator=(pair<U, V>&& p);

#include <cuda/std/utility>
// cuda/std/memory not supported
// #include <cuda/std/memory>
#include <cuda/std/cassert>

#include "archetypes.h"
#include "test_macros.h"

struct Base
{
  __host__ __device__ virtual ~Base() {}
};

struct Derived : public Base
{};

int main(int, char**)
{
  // cuda/std/memory not supported
  /*
  {
      typedef cuda::std::pair<cuda::std::unique_ptr<Derived>, short> P1;
      typedef cuda::std::pair<cuda::std::unique_ptr<Base>, long> P2;
      P1 p1(cuda::std::unique_ptr<Derived>(), static_cast<short>(4));
      P2 p2;
      p2 = cuda::std::move(p1);
      assert(p2.first == nullptr);
      assert(p2.second == 4);
  }
  */
  {
    using C = TestTypes::TestType;
    using P = cuda::std::pair<int, C>;
    using T = cuda::std::pair<long, C>;
    T t(42, -42);
    P p(101, 101);
    C::reset_constructors();
    p = cuda::std::move(t);
    assert(C::constructed() == 0);
    assert(C::assigned() == 1);
    assert(C::copy_assigned() == 0);
    assert(C::move_assigned() == 1);
    assert(p.first == 42);
    assert(p.second.value == -42);
  }

  return 0;
}
