diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__ranges/data.h')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__ranges/data.h | 105 |
1 files changed, 51 insertions, 54 deletions
diff --git a/contrib/llvm-project/libcxx/include/__ranges/data.h b/contrib/llvm-project/libcxx/include/__ranges/data.h index f8d92cbc7520..18002bb52cc8 100644 --- a/contrib/llvm-project/libcxx/include/__ranges/data.h +++ b/contrib/llvm-project/libcxx/include/__ranges/data.h @@ -6,6 +6,7 @@ // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// + #ifndef _LIBCPP___RANGES_DATA_H #define _LIBCPP___RANGES_DATA_H @@ -15,59 +16,55 @@ #include <__iterator/iterator_traits.h> #include <__memory/pointer_traits.h> #include <__ranges/access.h> +#include <__type_traits/decay.h> +#include <__type_traits/is_object.h> +#include <__type_traits/is_pointer.h> +#include <__type_traits/is_reference.h> +#include <__type_traits/remove_pointer.h> +#include <__type_traits/remove_reference.h> #include <__utility/auto_cast.h> -#include <type_traits> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -#pragma GCC system_header +# pragma GCC system_header #endif _LIBCPP_BEGIN_NAMESPACE_STD -#if !defined(_LIBCPP_HAS_NO_CONCEPTS) && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) +#if _LIBCPP_STD_VER >= 20 // [range.prim.data] namespace ranges { namespace __data { - template <class _Tp> - concept __ptr_to_object = is_pointer_v<_Tp> && is_object_v<remove_pointer_t<_Tp>>; - - template <class _Tp> - concept __member_data = - __can_borrow<_Tp> && - __workaround_52970<_Tp> && - requires(_Tp&& __t) { - { _LIBCPP_AUTO_CAST(__t.data()) } -> __ptr_to_object; - }; - - template <class _Tp> - concept __ranges_begin_invocable = - !__member_data<_Tp> && - __can_borrow<_Tp> && - requires(_Tp&& __t) { - { ranges::begin(__t) } -> contiguous_iterator; - }; - - struct __fn { - template <__member_data _Tp> - _LIBCPP_HIDE_FROM_ABI - constexpr auto operator()(_Tp&& __t) const - noexcept(noexcept(__t.data())) { - return __t.data(); - } - - template<__ranges_begin_invocable _Tp> - _LIBCPP_HIDE_FROM_ABI - constexpr auto operator()(_Tp&& __t) const - noexcept(noexcept(_VSTD::to_address(ranges::begin(__t)))) { - return _VSTD::to_address(ranges::begin(__t)); - } - }; +template <class _Tp> +concept __ptr_to_object = is_pointer_v<_Tp> && is_object_v<remove_pointer_t<_Tp>>; + +template <class _Tp> +concept __member_data = __can_borrow<_Tp> && __workaround_52970<_Tp> && requires(_Tp&& __t) { + { _LIBCPP_AUTO_CAST(__t.data()) } -> __ptr_to_object; +}; + +template <class _Tp> +concept __ranges_begin_invocable = !__member_data<_Tp> && __can_borrow<_Tp> && requires(_Tp&& __t) { + { ranges::begin(__t) } -> contiguous_iterator; +}; + +struct __fn { + template <__member_data _Tp> + _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t) const noexcept(noexcept(__t.data())) { + return __t.data(); + } + + template <__ranges_begin_invocable _Tp> + _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t) const + noexcept(noexcept(std::to_address(ranges::begin(__t)))) { + return std::to_address(ranges::begin(__t)); + } +}; } // namespace __data inline namespace __cpo { - inline constexpr auto data = __data::__fn{}; +inline constexpr auto data = __data::__fn{}; } // namespace __cpo } // namespace ranges @@ -75,31 +72,31 @@ inline namespace __cpo { namespace ranges { namespace __cdata { - struct __fn { - template <class _Tp> - requires is_lvalue_reference_v<_Tp&&> - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr auto operator()(_Tp&& __t) const +struct __fn { + template <class _Tp> + requires is_lvalue_reference_v<_Tp&&> + [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t) const noexcept(noexcept(ranges::data(static_cast<const remove_reference_t<_Tp>&>(__t)))) - -> decltype( ranges::data(static_cast<const remove_reference_t<_Tp>&>(__t))) - { return ranges::data(static_cast<const remove_reference_t<_Tp>&>(__t)); } + -> decltype(ranges::data(static_cast<const remove_reference_t<_Tp>&>(__t))) { + return ranges::data(static_cast<const remove_reference_t<_Tp>&>(__t)); + } - template <class _Tp> - requires is_rvalue_reference_v<_Tp&&> - [[nodiscard]] _LIBCPP_HIDE_FROM_ABI - constexpr auto operator()(_Tp&& __t) const + template <class _Tp> + requires is_rvalue_reference_v<_Tp&&> + [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t) const noexcept(noexcept(ranges::data(static_cast<const _Tp&&>(__t)))) - -> decltype( ranges::data(static_cast<const _Tp&&>(__t))) - { return ranges::data(static_cast<const _Tp&&>(__t)); } - }; + -> decltype(ranges::data(static_cast<const _Tp&&>(__t))) { + return ranges::data(static_cast<const _Tp&&>(__t)); + } +}; } // namespace __cdata inline namespace __cpo { - inline constexpr auto cdata = __cdata::__fn{}; +inline constexpr auto cdata = __cdata::__fn{}; } // namespace __cpo } // namespace ranges -#endif // !defined(_LIBCPP_HAS_NO_CONCEPTS) && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) +#endif // _LIBCPP_STD_VER >= 20 _LIBCPP_END_NAMESPACE_STD |