4f15267d3d
This change is almost fully mechanical. The only interesting change is in `generate_feature_test_macro_components.py` to generate `_LIBCPP_STD_VER >=` instead. To avoid churn in the git-blame this commit should be added to the `.git-blame-ignore-revs` once committed. Reviewed By: ldionne, var-const, #libc Spies: jloser, libcxx-commits, arichardson, arphaman, wenlei Differential Revision: https://reviews.llvm.org/D143962
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___RANGES_ALL_H
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#define _LIBCPP___RANGES_ALL_H
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#include <__config>
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#include <__iterator/concepts.h>
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#include <__iterator/iterator_traits.h>
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#include <__ranges/access.h>
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#include <__ranges/concepts.h>
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#include <__ranges/owning_view.h>
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#include <__ranges/range_adaptor.h>
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#include <__ranges/ref_view.h>
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#include <__utility/auto_cast.h>
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#include <__utility/declval.h>
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#include <__utility/forward.h>
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#include <type_traits>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER >= 20
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namespace ranges::views {
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namespace __all {
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struct __fn : __range_adaptor_closure<__fn> {
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template<class _Tp>
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requires ranges::view<decay_t<_Tp>>
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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI
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constexpr auto operator()(_Tp&& __t) const
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noexcept(noexcept(_LIBCPP_AUTO_CAST(std::forward<_Tp>(__t))))
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-> decltype(_LIBCPP_AUTO_CAST(std::forward<_Tp>(__t)))
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{
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return _LIBCPP_AUTO_CAST(std::forward<_Tp>(__t));
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}
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template<class _Tp>
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requires (!ranges::view<decay_t<_Tp>>) &&
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requires (_Tp&& __t) { ranges::ref_view{std::forward<_Tp>(__t)}; }
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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI
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constexpr auto operator()(_Tp&& __t) const
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noexcept(noexcept(ranges::ref_view{std::forward<_Tp>(__t)}))
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{
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return ranges::ref_view{std::forward<_Tp>(__t)};
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}
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template<class _Tp>
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requires (!ranges::view<decay_t<_Tp>> &&
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!requires (_Tp&& __t) { ranges::ref_view{std::forward<_Tp>(__t)}; } &&
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requires (_Tp&& __t) { ranges::owning_view{std::forward<_Tp>(__t)}; })
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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI
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constexpr auto operator()(_Tp&& __t) const
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noexcept(noexcept(ranges::owning_view{std::forward<_Tp>(__t)}))
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{
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return ranges::owning_view{std::forward<_Tp>(__t)};
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}
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};
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} // namespace __all
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inline namespace __cpo {
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inline constexpr auto all = __all::__fn{};
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} // namespace __cpo
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template<ranges::viewable_range _Range>
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using all_t = decltype(views::all(std::declval<_Range>()));
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} // namespace ranges::views
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#endif // _LIBCPP_STD_VER >= 20
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___RANGES_ALL_H
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