e78f53d1e8
This reverts commit 68c04b0ae62d8431d72d8b47fc13008002ee4387. This disables the IWYU mapping that caused the failure, since the headers aren't reachable for now. This is the first part of the "Freezing C++03 headers" proposal explained in https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319/58. This patch mechanically copies the headers as of the LLVM 19.1 release into a subdirectory of libc++ so that we can start using these headers when building in C++03 mode. We are going to be backporting important changes to that copy of the headers until the LLVM 21 release. After the LLVM 21 release, only critical bugfixes will be fixed in the C++03 copy of the headers. This patch only performs a copy of the headers -- these headers are still unused by the rest of the codebase.
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
//===----------------------------------------------------------------------===//
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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___ALGORITHM_RANGES_SAMPLE_H
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#define _LIBCPP___ALGORITHM_RANGES_SAMPLE_H
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#include <__algorithm/iterator_operations.h>
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#include <__algorithm/sample.h>
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#include <__algorithm/uniform_random_bit_generator_adaptor.h>
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#include <__config>
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#include <__iterator/concepts.h>
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#include <__iterator/incrementable_traits.h>
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#include <__iterator/iterator_traits.h>
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#include <__random/uniform_random_bit_generator.h>
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#include <__ranges/access.h>
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#include <__ranges/concepts.h>
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#include <__type_traits/remove_reference.h>
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#include <__utility/forward.h>
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#include <__utility/move.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_PUSH_MACROS
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#include <__undef_macros>
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#if _LIBCPP_STD_VER >= 20
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace ranges {
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namespace __sample {
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struct __fn {
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template <input_iterator _Iter, sentinel_for<_Iter> _Sent, weakly_incrementable _OutIter, class _Gen>
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requires(forward_iterator<_Iter> || random_access_iterator<_OutIter>) && indirectly_copyable<_Iter, _OutIter> &&
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uniform_random_bit_generator<remove_reference_t<_Gen>>
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_LIBCPP_HIDE_FROM_ABI _OutIter
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operator()(_Iter __first, _Sent __last, _OutIter __out_first, iter_difference_t<_Iter> __n, _Gen&& __gen) const {
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_ClassicGenAdaptor<_Gen> __adapted_gen(__gen);
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return std::__sample<_RangeAlgPolicy>(
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std::move(__first), std::move(__last), std::move(__out_first), __n, __adapted_gen);
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}
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template <input_range _Range, weakly_incrementable _OutIter, class _Gen>
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requires(forward_range<_Range> || random_access_iterator<_OutIter>) &&
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indirectly_copyable<iterator_t<_Range>, _OutIter> && uniform_random_bit_generator<remove_reference_t<_Gen>>
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_LIBCPP_HIDE_FROM_ABI _OutIter
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operator()(_Range&& __range, _OutIter __out_first, range_difference_t<_Range> __n, _Gen&& __gen) const {
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return (*this)(
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ranges::begin(__range), ranges::end(__range), std::move(__out_first), __n, std::forward<_Gen>(__gen));
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}
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};
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} // namespace __sample
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inline namespace __cpo {
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inline constexpr auto sample = __sample::__fn{};
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} // namespace __cpo
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} // namespace ranges
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER >= 20
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___ALGORITHM_RANGES_SAMPLE_H
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