//===----------------------------------------------------------------------===//
//
// Part of libcu++, the C++ Standard Library for your entire system,
// 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
// SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//

#ifndef _CUDA_CMATH
#define _CUDA_CMATH

#include <cuda/std/detail/__config>

#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
#  pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
#  pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
#  pragma system_header
#endif // no system header

#include <cuda/std/__type_traits/enable_if.h>
#include <cuda/std/__type_traits/is_integral.h>
#include <cuda/std/cmath>
#include <cuda/std/detail/libcxx/include/__debug>

_LIBCUDACXX_BEGIN_NAMESPACE_CUDA

template <class _Tp, _CUDA_VSTD::__enable_if_t<_CCCL_TRAIT(_CUDA_VSTD::is_integral, _Tp), int> = 0>
_CCCL_NODISCARD _LIBCUDACXX_HIDE_FROM_ABI _CCCL_CONSTEXPR_CXX14 _Tp ceil_div(const _Tp __a, const _Tp __b) noexcept
{
  _LIBCUDACXX_DEBUG_ASSERT(__a >= _Tp(0), "cuda::ceil_div: a must be non negative");
  _LIBCUDACXX_DEBUG_ASSERT(__b > _Tp(0), "cuda::ceil_div: b must be positive");
  const _Tp __res = static_cast<_Tp>(__a / __b);
  return static_cast<_Tp>(__res + (__res * __b != __a));
}

_LIBCUDACXX_END_NAMESPACE_CUDA

#endif // _CUDA_CMATH