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