Christopher Di Bella d10dc5a06f
[libc++] Remove dedicated namespaces for ranges functions (#76543)
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.
2024-08-01 08:54:06 -04:00

73 lines
2.3 KiB
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___ALGORITHM_RANGES_MOVE_H
#define _LIBCPP___ALGORITHM_RANGES_MOVE_H
#include <__algorithm/in_out_result.h>
#include <__algorithm/iterator_operations.h>
#include <__algorithm/move.h>
#include <__config>
#include <__iterator/concepts.h>
#include <__ranges/access.h>
#include <__ranges/concepts.h>
#include <__ranges/dangling.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
#if _LIBCPP_STD_VER >= 20
_LIBCPP_BEGIN_NAMESPACE_STD
namespace ranges {
template <class _InIter, class _OutIter>
using move_result = in_out_result<_InIter, _OutIter>;
struct __move {
template <class _InIter, class _Sent, class _OutIter>
_LIBCPP_HIDE_FROM_ABI constexpr static move_result<_InIter, _OutIter>
__move_impl(_InIter __first, _Sent __last, _OutIter __result) {
auto __ret = std::__move<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::move(__result));
return {std::move(__ret.first), std::move(__ret.second)};
}
template <input_iterator _InIter, sentinel_for<_InIter> _Sent, weakly_incrementable _OutIter>
requires indirectly_movable<_InIter, _OutIter>
_LIBCPP_HIDE_FROM_ABI constexpr move_result<_InIter, _OutIter>
operator()(_InIter __first, _Sent __last, _OutIter __result) const {
return __move_impl(std::move(__first), std::move(__last), std::move(__result));
}
template <input_range _Range, weakly_incrementable _OutIter>
requires indirectly_movable<iterator_t<_Range>, _OutIter>
_LIBCPP_HIDE_FROM_ABI constexpr move_result<borrowed_iterator_t<_Range>, _OutIter>
operator()(_Range&& __range, _OutIter __result) const {
return __move_impl(ranges::begin(__range), ranges::end(__range), std::move(__result));
}
};
inline namespace __cpo {
inline constexpr auto move = __move{};
} // namespace __cpo
} // namespace ranges
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_STD_VER >= 20
_LIBCPP_POP_MACROS
#endif // _LIBCPP___ALGORITHM_RANGES_MOVE_H