codekingpro/portable-devtools

1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7// SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES.8//9//===----------------------------------------------------------------------===//10 11#ifndef _LIBCUDACXX___UTILITY_TO_UNDERLYING_H12#define _LIBCUDACXX___UTILITY_TO_UNDERLYING_H13 14#ifndef __cuda_std__15#include <__config>16#endif // __cuda_std__17 18#include "../__type_traits/underlying_type.h"19 20#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)21#  pragma GCC system_header22#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)23#  pragma clang system_header24#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)25#  pragma system_header26#endif // no system header27 28_LIBCUDACXX_BEGIN_NAMESPACE_STD29 30template <class _Tp>31_LIBCUDACXX_INLINE_VISIBILITY constexpr typename underlying_type<_Tp>::type32__to_underlying(_Tp __val) noexcept {33  return static_cast<typename underlying_type<_Tp>::type>(__val);34}35 36#if _LIBCUDACXX_STD_VER > 2037template <class _Tp>38_LIBCUDACXX_NODISCARD_EXT _LIBCUDACXX_INLINE_VISIBILITY constexpr underlying_type_t<_Tp>39to_underlying(_Tp __val) noexcept {40  return _CUDA_VSTD::__to_underlying(__val);41}42#endif43 44_LIBCUDACXX_END_NAMESPACE_STD45 46#endif // _LIBCUDACXX___UTILITY_TO_UNDERLYING_H47