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

// <chrono>

// constexpr hours make24(const hours& h, bool is_pm) noexcept;
//   Returns: If is_pm is false, returns the 24-hour equivalent of h in the range [0h, 11h],
//       assuming h represents an ante meridiem hour.
//     Else returns the 24-hour equivalent of h in the range [12h, 23h],
//       assuming h represents a post meridiem hour.
//     If h is not in the range [1h, 12h], the value returned is unspecified.

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

#include "test_macros.h"

int main(int, char**)
{
  using hours = cuda::std::chrono::hours;
  static_assert(cuda::std::is_same_v<hours, decltype(cuda::std::chrono::make24(cuda::std::declval<hours>(), false))>);
  static_assert(noexcept(cuda::std::chrono::make24(cuda::std::declval<hours>(), false)));

  static_assert(cuda::std::chrono::make24(hours(1), false) == hours(1), "");
  static_assert(cuda::std::chrono::make24(hours(11), false) == hours(11), "");
  static_assert(cuda::std::chrono::make24(hours(12), false) == hours(0), "");
  static_assert(cuda::std::chrono::make24(hours(1), true) == hours(13), "");
  static_assert(cuda::std::chrono::make24(hours(11), true) == hours(23), "");
  static_assert(cuda::std::chrono::make24(hours(12), true) == hours(12), "");

  for (int i = 1; i < 11; ++i)
  {
    assert((cuda::std::chrono::make24(hours(i), false)) == hours(i));
    assert((cuda::std::chrono::make24(hours(i), true)) == hours(12 + i));
  }
  assert((cuda::std::chrono::make24(hours(12), false)) == hours(0));
  assert((cuda::std::chrono::make24(hours(12), true)) == hours(12));

  return 0;
}
