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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.
69 lines
2.2 KiB
C++
69 lines
2.2 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_SWAP_RANGES_H
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#define _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H
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#include <__algorithm/in_in_result.h>
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#include <__algorithm/iterator_operations.h>
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#include <__algorithm/swap_ranges.h>
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#include <__config>
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#include <__iterator/concepts.h>
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#include <__iterator/iter_swap.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/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 _I1, class _I2>
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using swap_ranges_result = in_in_result<_I1, _I2>;
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struct __swap_ranges {
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template <input_iterator _I1, sentinel_for<_I1> _S1, input_iterator _I2, sentinel_for<_I2> _S2>
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requires indirectly_swappable<_I1, _I2>
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_LIBCPP_HIDE_FROM_ABI constexpr swap_ranges_result<_I1, _I2>
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operator()(_I1 __first1, _S1 __last1, _I2 __first2, _S2 __last2) const {
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auto __ret = std::__swap_ranges<_RangeAlgPolicy>(
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std::move(__first1), std::move(__last1), std::move(__first2), std::move(__last2));
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return {std::move(__ret.first), std::move(__ret.second)};
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}
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template <input_range _R1, input_range _R2>
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requires indirectly_swappable<iterator_t<_R1>, iterator_t<_R2>>
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_LIBCPP_HIDE_FROM_ABI constexpr swap_ranges_result<borrowed_iterator_t<_R1>, borrowed_iterator_t<_R2>>
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operator()(_R1&& __r1, _R2&& __r2) const {
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return operator()(ranges::begin(__r1), ranges::end(__r1), ranges::begin(__r2), ranges::end(__r2));
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}
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};
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inline namespace __cpo {
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inline constexpr auto swap_ranges = __swap_ranges{};
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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_SWAP_RANGES_H
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