1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef _LIBCPP___ALGORITHM_RANGES_LOWER_BOUND_H
10#define _LIBCPP___ALGORITHM_RANGES_LOWER_BOUND_H
11
12#include <__algorithm/iterator_operations.h>
13#include <__algorithm/lower_bound.h>
14#include <__config>
15#include <__functional/identity.h>
16#include <__functional/invoke.h>
17#include <__functional/ranges_operations.h>
18#include <__iterator/advance.h>
19#include <__iterator/concepts.h>
20#include <__iterator/iterator_traits.h>
21#include <__iterator/projected.h>
22#include <__ranges/access.h>
23#include <__ranges/concepts.h>
24#include <__ranges/dangling.h>
25
26#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
27#  pragma GCC system_header
28#endif
29
30#if _LIBCPP_STD_VER > 17
31
32_LIBCPP_BEGIN_NAMESPACE_STD
33
34namespace ranges {
35
36namespace __lower_bound {
37struct __fn {
38  template <forward_iterator _Iter, sentinel_for<_Iter> _Sent, class _Type, class _Proj = identity,
39            indirect_strict_weak_order<const _Type*, projected<_Iter, _Proj>> _Comp = ranges::less>
40  _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr
41  _Iter operator()(_Iter __first, _Sent __last, const _Type& __value, _Comp __comp = {}, _Proj __proj = {}) const {
42    return std::__lower_bound_impl<_RangeAlgPolicy>(__first, __last, __value, __comp, __proj);
43  }
44
45  template <forward_range _Range, class _Type, class _Proj = identity,
46            indirect_strict_weak_order<const _Type*, projected<iterator_t<_Range>, _Proj>> _Comp = ranges::less>
47  _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr
48  borrowed_iterator_t<_Range> operator()(_Range&& __r,
49                                         const _Type& __value,
50                                         _Comp __comp = {},
51                                         _Proj __proj = {}) const {
52    return std::__lower_bound_impl<_RangeAlgPolicy>(ranges::begin(__r), ranges::end(__r), __value, __comp, __proj);
53  }
54};
55} // namespace __lower_bound
56
57inline namespace __cpo {
58  inline constexpr auto lower_bound = __lower_bound::__fn{};
59} // namespace __cpo
60} // namespace ranges
61
62_LIBCPP_END_NAMESPACE_STD
63
64#endif // _LIBCPP_STD_VER > 17
65
66#endif // _LIBCPP___ALGORITHM_RANGES_LOWER_BOUND_H
67