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_UNBOUNDED_ARRAY_H 10 #define _LIBCPP___TYPE_TRAITS_IS_UNBOUNDED_ARRAY_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 template <class> 22 inline const bool __is_unbounded_array_v = false; 23 template <class _Tp> 24 inline const bool __is_unbounded_array_v<_Tp[]> = true; 25 26 #if _LIBCPP_STD_VER >= 20 27 28 template <class> 29 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_NO_SPECIALIZATIONS is_unbounded_array : false_type {}; 30 31 _LIBCPP_DIAGNOSTIC_PUSH 32 # if __has_warning("-Winvalid-specialization") 33 _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Winvalid-specialization") 34 # endif 35 template <class _Tp> 36 struct _LIBCPP_TEMPLATE_VIS is_unbounded_array<_Tp[]> : true_type {}; 37 _LIBCPP_DIAGNOSTIC_POP 38 39 template <class _Tp> 40 _LIBCPP_NO_SPECIALIZATIONS inline constexpr bool is_unbounded_array_v = is_unbounded_array<_Tp>::value; 41 42 #endif 43 44 _LIBCPP_END_NAMESPACE_STD 45 46 #endif // _LIBCPP___TYPE_TRAITS_IS_UNBOUNDED_ARRAY_H 47