1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef _LIBCPP___TYPE_TRAITS_IS_ENUM_H
10 #define _LIBCPP___TYPE_TRAITS_IS_ENUM_H
11 
12 #include <__config>
13 #include <__type_traits/integral_constant.h>
14 #include <__type_traits/remove_cv.h>
15 
16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17 #  pragma GCC system_header
18 #endif
19 
20 _LIBCPP_BEGIN_NAMESPACE_STD
21 
22 template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_enum
23     : public integral_constant<bool, __is_enum(_Tp)> {};
24 
25 #if _LIBCPP_STD_VER > 14
26 template <class _Tp>
27 inline constexpr bool is_enum_v = __is_enum(_Tp);
28 #endif
29 
30 _LIBCPP_END_NAMESPACE_STD
31 
32 #endif // _LIBCPP___TYPE_TRAITS_IS_ENUM_H
33