181ad6265SDimitry Andric //===----------------------------------------------------------------------===// 281ad6265SDimitry Andric // 381ad6265SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 481ad6265SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 581ad6265SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 681ad6265SDimitry Andric // 781ad6265SDimitry Andric //===----------------------------------------------------------------------===// 881ad6265SDimitry Andric 981ad6265SDimitry Andric #ifndef _LIBCPP___TYPE_TRAITS_ADD_POINTER_H 1081ad6265SDimitry Andric #define _LIBCPP___TYPE_TRAITS_ADD_POINTER_H 1181ad6265SDimitry Andric 1281ad6265SDimitry Andric #include <__config> 1381ad6265SDimitry Andric #include <__type_traits/is_referenceable.h> 1481ad6265SDimitry Andric #include <__type_traits/is_same.h> 15bdd1243dSDimitry Andric #include <__type_traits/is_void.h> 1681ad6265SDimitry Andric #include <__type_traits/remove_cv.h> 1781ad6265SDimitry Andric #include <__type_traits/remove_reference.h> 1881ad6265SDimitry Andric 1981ad6265SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 2081ad6265SDimitry Andric # pragma GCC system_header 2181ad6265SDimitry Andric #endif 2281ad6265SDimitry Andric 2381ad6265SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 2481ad6265SDimitry Andric 251ac55f4cSDimitry Andric #if !defined(_LIBCPP_WORKAROUND_OBJCXX_COMPILER_INTRINSICS) && __has_builtin(__add_pointer) 26bdd1243dSDimitry Andric 271f571f87SDimitry Andric template <class _Tp> 28bdd1243dSDimitry Andric using __add_pointer_t = __add_pointer(_Tp); 29bdd1243dSDimitry Andric 301f571f87SDimitry Andric #else 3106c3fb27SDimitry Andric template <class _Tp, bool = __libcpp_is_referenceable<_Tp>::value || is_void<_Tp>::value> 321f571f87SDimitry Andric struct __add_pointer_impl { 33bdd1243dSDimitry Andric typedef _LIBCPP_NODEBUG __libcpp_remove_reference_t<_Tp>* type; 341f571f87SDimitry Andric }; 3506c3fb27SDimitry Andric template <class _Tp> 3606c3fb27SDimitry Andric struct __add_pointer_impl<_Tp, false> { 3706c3fb27SDimitry Andric typedef _LIBCPP_NODEBUG _Tp type; 3806c3fb27SDimitry Andric }; 3981ad6265SDimitry Andric 40bdd1243dSDimitry Andric template <class _Tp> 41bdd1243dSDimitry Andric using __add_pointer_t = typename __add_pointer_impl<_Tp>::type; 42bdd1243dSDimitry Andric 431ac55f4cSDimitry Andric #endif // !defined(_LIBCPP_WORKAROUND_OBJCXX_COMPILER_INTRINSICS) && __has_builtin(__add_pointer) 4481ad6265SDimitry Andric 45bdd1243dSDimitry Andric template <class _Tp> 46bdd1243dSDimitry Andric struct add_pointer { 47bdd1243dSDimitry Andric using type _LIBCPP_NODEBUG = __add_pointer_t<_Tp>; 48bdd1243dSDimitry Andric }; 49bdd1243dSDimitry Andric 5006c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 14 5106c3fb27SDimitry Andric template <class _Tp> 5206c3fb27SDimitry Andric using add_pointer_t = __add_pointer_t<_Tp>; 5381ad6265SDimitry Andric #endif 5481ad6265SDimitry Andric 5581ad6265SDimitry Andric _LIBCPP_END_NAMESPACE_STD 5681ad6265SDimitry Andric 5781ad6265SDimitry Andric #endif // _LIBCPP___TYPE_TRAITS_ADD_POINTER_H 58