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_SIGNED_INTEGER_H 10 #define _LIBCPP___TYPE_TRAITS_IS_SIGNED_INTEGER_H 11 12 #include <__config> 13 #include <__type_traits/integral_constant.h> 14 15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 16 # pragma GCC system_header 17 #endif 18 19 _LIBCPP_BEGIN_NAMESPACE_STD 20 21 // clang-format off 22 template <class _Tp> struct __libcpp_is_signed_integer : public false_type {}; 23 template <> struct __libcpp_is_signed_integer<signed char> : public true_type {}; 24 template <> struct __libcpp_is_signed_integer<signed short> : public true_type {}; 25 template <> struct __libcpp_is_signed_integer<signed int> : public true_type {}; 26 template <> struct __libcpp_is_signed_integer<signed long> : public true_type {}; 27 template <> struct __libcpp_is_signed_integer<signed long long> : public true_type {}; 28 #ifndef _LIBCPP_HAS_NO_INT128 29 template <> struct __libcpp_is_signed_integer<__int128_t> : public true_type {}; 30 #endif 31 // clang-format on 32 33 _LIBCPP_END_NAMESPACE_STD 34 35 #endif // _LIBCPP___TYPE_TRAITS_IS_SIGNED_INTEGER_H 36