diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__utility/declval.h')
-rw-r--r-- | contrib/llvm-project/libcxx/include/__utility/declval.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/include/__utility/declval.h b/contrib/llvm-project/libcxx/include/__utility/declval.h new file mode 100644 index 000000000000..185527cc6cb5 --- /dev/null +++ b/contrib/llvm-project/libcxx/include/__utility/declval.h @@ -0,0 +1,39 @@ +//===----------------------------------------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___UTILITY_DECLVAL_H +#define _LIBCPP___UTILITY_DECLVAL_H + +#include <__config> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_PUSH_MACROS +#include <__undef_macros> + +_LIBCPP_BEGIN_NAMESPACE_STD + +// Suppress deprecation notice for volatile-qualified return type resulting +// from volatile-qualified types _Tp. +_LIBCPP_SUPPRESS_DEPRECATED_PUSH +template <class _Tp> +_Tp&& __declval(int); +template <class _Tp> +_Tp __declval(long); +_LIBCPP_SUPPRESS_DEPRECATED_POP + +template <class _Tp> +decltype(__declval<_Tp>(0)) declval() _NOEXCEPT; + +_LIBCPP_END_NAMESPACE_STD + +_LIBCPP_POP_MACROS + +#endif // _LIBCPP___UTILITY_DECLVAL_H |