d10dc5a06f
We originally put implementation-detail function objects into individual namespaces for `std::ranges` without a good reason for doing so. This practice was continued, presumably because there was prior art. Since there's no reason to keep these namespaces, this commit removes them, which will slightly impact binary size. This commit does not apply to CPOs, some of which need additional work.
92 lines
3.1 KiB
C++
92 lines
3.1 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_REMOVE_COPY_IF_H
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#define _LIBCPP___ALGORITHM_RANGES_REMOVE_COPY_IF_H
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#include <__algorithm/in_out_result.h>
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#include <__algorithm/make_projected.h>
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#include <__algorithm/remove_copy_if.h>
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#include <__config>
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#include <__functional/identity.h>
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#include <__functional/invoke.h>
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#include <__functional/ranges_operations.h>
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#include <__iterator/concepts.h>
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#include <__iterator/iterator_traits.h>
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#include <__iterator/projected.h>
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#include <__ranges/access.h>
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#include <__ranges/concepts.h>
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#include <__ranges/dangling.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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template <class _InIter, class _OutIter>
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using remove_copy_if_result = in_out_result<_InIter, _OutIter>;
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template <class _InIter, class _Sent, class _OutIter, class _Proj, class _Pred>
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_LIBCPP_HIDE_FROM_ABI constexpr in_out_result<_InIter, _OutIter>
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__remove_copy_if_impl(_InIter __first, _Sent __last, _OutIter __result, _Pred& __pred, _Proj& __proj) {
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for (; __first != __last; ++__first) {
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if (!std::invoke(__pred, std::invoke(__proj, *__first))) {
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*__result = *__first;
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++__result;
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}
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}
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return {std::move(__first), std::move(__result)};
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}
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struct __remove_copy_if {
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template <input_iterator _InIter,
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sentinel_for<_InIter> _Sent,
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weakly_incrementable _OutIter,
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class _Proj = identity,
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indirect_unary_predicate<projected<_InIter, _Proj>> _Pred>
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requires indirectly_copyable<_InIter, _OutIter>
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_LIBCPP_HIDE_FROM_ABI constexpr remove_copy_if_result<_InIter, _OutIter>
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operator()(_InIter __first, _Sent __last, _OutIter __result, _Pred __pred, _Proj __proj = {}) const {
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return ranges::__remove_copy_if_impl(std::move(__first), std::move(__last), std::move(__result), __pred, __proj);
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}
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template <input_range _Range,
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weakly_incrementable _OutIter,
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class _Proj = identity,
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indirect_unary_predicate<projected<iterator_t<_Range>, _Proj>> _Pred>
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requires indirectly_copyable<iterator_t<_Range>, _OutIter>
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_LIBCPP_HIDE_FROM_ABI constexpr remove_copy_if_result<borrowed_iterator_t<_Range>, _OutIter>
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operator()(_Range&& __range, _OutIter __result, _Pred __pred, _Proj __proj = {}) const {
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return ranges::__remove_copy_if_impl(
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ranges::begin(__range), ranges::end(__range), std::move(__result), __pred, __proj);
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}
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};
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inline namespace __cpo {
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inline constexpr auto remove_copy_if = __remove_copy_if{};
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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_REMOVE_COPY_IF_H
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