/
is_array.h
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/
is_array.h
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//===----------------------------------------------------------------------===//
//
// 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_ARRAY_H
#define _LIBCPP___TYPE_TRAITS_IS_ARRAY_H
#include <__config>
#include <__type_traits/integral_constant.h>
#include <cstddef>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
// TODO: Clang incorrectly reports that __is_array is true for T[0].
// Re-enable the branch once https://llvm.org/PR54705 is fixed.
#if __has_builtin(__is_array) && 0
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS is_array : _BoolConstant<__is_array(_Tp)> { };
#if _LIBCPP_STD_VER > 14
template <class _Tp>
inline constexpr bool is_array_v = __is_array(_Tp);
#endif
#else
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_array
: public false_type {};
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_array<_Tp[]>
: public true_type {};
template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS is_array<_Tp[_Np]>
: public true_type {};
#if _LIBCPP_STD_VER > 14
template <class _Tp>
inline constexpr bool is_array_v = is_array<_Tp>::value;
#endif
#endif // __has_builtin(__is_array)
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___TYPE_TRAITS_IS_ARRAY_H