| //===----------------------------------------------------------------------===// |
| // |
| // 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___TYPE_TRAITS_IS_INTEGRAL_H |
| #define _LIBCPP___TYPE_TRAITS_IS_INTEGRAL_H |
| |
| #include <__config> |
| #include <__type_traits/integral_constant.h> |
| #include <__type_traits/remove_cv.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| template <class _Tp> struct __libcpp_is_integral { enum { value = 0 }; }; |
| template <> struct __libcpp_is_integral<bool> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<char> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<signed char> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<unsigned char> { enum { value = 1 }; }; |
| #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS |
| template <> struct __libcpp_is_integral<wchar_t> { enum { value = 1 }; }; |
| #endif |
| #ifndef _LIBCPP_HAS_NO_CHAR8_T |
| template <> struct __libcpp_is_integral<char8_t> { enum { value = 1 }; }; |
| #endif |
| template <> struct __libcpp_is_integral<char16_t> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<char32_t> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<short> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<unsigned short> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<int> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<unsigned int> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<long> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<unsigned long> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<long long> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<unsigned long long> { enum { value = 1 }; }; |
| #ifndef _LIBCPP_HAS_NO_INT128 |
| template <> struct __libcpp_is_integral<__int128_t> { enum { value = 1 }; }; |
| template <> struct __libcpp_is_integral<__uint128_t> { enum { value = 1 }; }; |
| #endif |
| |
| #if __has_builtin(__is_integral) |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS is_integral : _BoolConstant<__is_integral(_Tp)> { }; |
| |
| #if _LIBCPP_STD_VER > 14 |
| template <class _Tp> |
| inline constexpr bool is_integral_v = __is_integral(_Tp); |
| #endif |
| |
| #else |
| |
| template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_integral |
| : public _BoolConstant<__libcpp_is_integral<__remove_cv_t<_Tp> >::value> {}; |
| |
| #if _LIBCPP_STD_VER > 14 |
| template <class _Tp> |
| inline constexpr bool is_integral_v = is_integral<_Tp>::value; |
| #endif |
| |
| #endif // __has_builtin(__is_integral) |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___TYPE_TRAITS_IS_INTEGRAL_H |