6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
79 lines
2.6 KiB
C++
79 lines
2.6 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 <__functional/compose.h> // TODO(modules): Those should not be required
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#include <__functional/perfect_forward.h> //
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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 <__type_traits/decay.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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#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 constexpr auto operator()(_Tp&& __t) const noexcept(
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noexcept(_LIBCPP_AUTO_CAST(std::forward<_Tp>(__t)))) -> decltype(_LIBCPP_AUTO_CAST(std::forward<_Tp>(__t))) {
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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>>) && requires(_Tp&& __t) { ranges::ref_view{std::forward<_Tp>(__t)}; }
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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t) const
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noexcept(noexcept(ranges::ref_view{std::forward<_Tp>(__t)})) {
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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(
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!ranges::view<decay_t<_Tp>> && !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 constexpr auto operator()(_Tp&& __t) const
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noexcept(noexcept(ranges::owning_view{std::forward<_Tp>(__t)})) {
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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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