llvm-capstone/libcxx/include/__algorithm/ranges_equal_range.h
Konstantin Varlamov 73ebcabff2 [libc++][ranges][NFC] Implement the repetitive parts of the remaining range algorithms:
- create the headers (but not include them from `<algorithm>`);
- define the niebloid and its member functions with the right signatures
  (as no-ops);
- make sure all the right headers are included that are required by each
  algorithm's signature;
- update `CMakeLists.txt` and the module map;
- create the test files with the appropriate synopses.

The synopsis in `<algorithm>` is deliberately not updated because that
could be taken as a readiness signal. The new headers aren't included
from `<algorithm>` for the same reason.

Differential Revision: https://reviews.llvm.org/D129549
2022-07-12 02:48:31 -07:00

75 lines
2.5 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_EQUAL_RANGE_H
#define _LIBCPP___ALGORITHM_RANGES_EQUAL_RANGE_H
#include <__algorithm/equal_range.h>
#include <__algorithm/make_projected.h>
#include <__config>
#include <__functional/identity.h>
#include <__functional/invoke.h>
#include <__functional/ranges_operations.h>
#include <__iterator/concepts.h>
#include <__iterator/iterator_traits.h>
#include <__iterator/projected.h>
#include <__ranges/access.h>
#include <__ranges/concepts.h>
#include <__ranges/dangling.h>
#include <__ranges/subrange.h>
#include <__utility/forward.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
_LIBCPP_BEGIN_NAMESPACE_STD
namespace ranges {
namespace __equal_range {
struct __fn {
template <forward_iterator _Iter, sentinel_for<_Iter> _Sent, class _Tp, class _Proj = identity,
indirect_strict_weak_order<const _Tp*, projected<_Iter, _Proj>> _Comp = ranges::less>
_LIBCPP_HIDE_FROM_ABI constexpr
subrange<_Iter> operator()(_Iter __first, _Sent __last, const _Tp& __value, _Comp __comp = {},
_Proj __proj = {}) const {
// TODO: implement
(void)__first; (void)__last; (void)__value; (void)__comp; (void)__proj;
return {};
}
template <forward_range _Range, class _Tp, class _Proj = identity,
indirect_strict_weak_order<const _Tp*, projected<iterator_t<_Range>, _Proj>> _Comp = ranges::less>
_LIBCPP_HIDE_FROM_ABI constexpr
borrowed_subrange_t<_Range> operator()(_Range&& __range, const _Tp& __value, _Comp __comp = {},
_Proj __proj = {}) const {
// TODO: implement
(void)__range; (void)__value; (void)__comp; (void)__proj;
return {};
}
};
} // namespace __equal_range
inline namespace __cpo {
inline constexpr auto equal_range = __equal_range::__fn{};
} // namespace __cpo
} // namespace ranges
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
#endif // _LIBCPP___ALGORITHM_RANGES_EQUAL_RANGE_H