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501e3f2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | // -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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 _LIBCUDACXX___UTILITY_TO_UNDERLYING_H
#define _LIBCUDACXX___UTILITY_TO_UNDERLYING_H
#ifndef __cuda_std__
#include <__config>
#endif // __cuda_std__
#include "../__type_traits/underlying_type.h"
#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
_LIBCUDACXX_BEGIN_NAMESPACE_STD
template <class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY constexpr typename underlying_type<_Tp>::type
__to_underlying(_Tp __val) noexcept {
return static_cast<typename underlying_type<_Tp>::type>(__val);
}
#if _LIBCUDACXX_STD_VER > 20
template <class _Tp>
_LIBCUDACXX_NODISCARD_EXT _LIBCUDACXX_INLINE_VISIBILITY constexpr underlying_type_t<_Tp>
to_underlying(_Tp __val) noexcept {
return _CUDA_VSTD::__to_underlying(__val);
}
#endif
_LIBCUDACXX_END_NAMESPACE_STD
#endif // _LIBCUDACXX___UTILITY_TO_UNDERLYING_H
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