//===----------------------------------------------------------------------===//
//
// 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
// SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//

#ifndef _CUDA_STD___ALGORITHM_FOR_EACH_N_H
#define _CUDA_STD___ALGORITHM_FOR_EACH_N_H

#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/__utility/convert_to_integral.h>

#include <cuda/std/__cccl/prologue.h>

_CCCL_BEGIN_NAMESPACE_CUDA_STD

_CCCL_EXEC_CHECK_DISABLE
template <class _InputIterator, class _Size, class _Function>
_CCCL_API constexpr _InputIterator for_each_n(_InputIterator __first, _Size __orig_n, _Function __f)
{
  using _IntegralSize = decltype(::cuda::std::__convert_to_integral(__orig_n));
  _IntegralSize __n   = __orig_n;
  while (__n > 0)
  {
    __f(*__first);
    ++__first;
    --__n;
  }
  return __first;
}

_CCCL_END_NAMESPACE_CUDA_STD

#include <cuda/std/__cccl/epilogue.h>

#endif // _CUDA_STD___ALGORITHM_FOR_EACH_N_H
