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_ALL_OF_H
10#define _LIBCPP___ALGORITHM_RANGES_ALL_OF_H
11
12#include <__config>
13#include <__functional/identity.h>
14#include <__functional/invoke.h>
15#include <__iterator/concepts.h>
16#include <__iterator/projected.h>
17#include <__ranges/access.h>
18#include <__ranges/concepts.h>
19#include <__utility/move.h>
20
21#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
22#  pragma GCC system_header
23#endif
24
25_LIBCPP_PUSH_MACROS
26#include <__undef_macros>
27
28#if _LIBCPP_STD_VER >= 20
29
30_LIBCPP_BEGIN_NAMESPACE_STD
31
32namespace ranges {
33namespace __all_of {
34struct __fn {
35  template <class _Iter, class _Sent, class _Proj, class _Pred>
36  _LIBCPP_HIDE_FROM_ABI constexpr static bool __all_of_impl(_Iter __first, _Sent __last, _Pred& __pred, _Proj& __proj) {
37    for (; __first != __last; ++__first) {
38      if (!std::invoke(__pred, std::invoke(__proj, *__first)))
39        return false;
40    }
41    return true;
42  }
43
44  template <input_iterator _Iter,
45            sentinel_for<_Iter> _Sent,
46            class _Proj = identity,
47            indirect_unary_predicate<projected<_Iter, _Proj>> _Pred>
48  _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool
49  operator()(_Iter __first, _Sent __last, _Pred __pred, _Proj __proj = {}) const {
50    return __all_of_impl(std::move(__first), std::move(__last), __pred, __proj);
51  }
52
53  template <input_range _Range,
54            class _Proj = identity,
55            indirect_unary_predicate<projected<iterator_t<_Range>, _Proj>> _Pred>
56  _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool
57  operator()(_Range&& __range, _Pred __pred, _Proj __proj = {}) const {
58    return __all_of_impl(ranges::begin(__range), ranges::end(__range), __pred, __proj);
59  }
60};
61} // namespace __all_of
62
63inline namespace __cpo {
64inline constexpr auto all_of = __all_of::__fn{};
65} // namespace __cpo
66} // namespace ranges
67
68_LIBCPP_END_NAMESPACE_STD
69
70#endif // _LIBCPP_STD_VER >= 20
71
72_LIBCPP_POP_MACROS
73
74#endif // _LIBCPP___ALGORITHM_RANGES_ALL_OF_H
75