xref: /freebsd/contrib/llvm-project/libcxx/include/__algorithm/ranges_find_if_not.h (revision 0fca6ea1d4eea4c934cfff25ac9ee8ad6fe95583)
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_FIND_IF_NOT_H
10 #define _LIBCPP___ALGORITHM_RANGES_FIND_IF_NOT_H
11 
12 #include <__algorithm/ranges_find_if.h>
13 #include <__config>
14 #include <__functional/identity.h>
15 #include <__functional/invoke.h>
16 #include <__functional/ranges_operations.h>
17 #include <__iterator/concepts.h>
18 #include <__iterator/projected.h>
19 #include <__ranges/access.h>
20 #include <__ranges/concepts.h>
21 #include <__ranges/dangling.h>
22 #include <__utility/forward.h>
23 #include <__utility/move.h>
24 
25 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
26 #  pragma GCC system_header
27 #endif
28 
29 _LIBCPP_PUSH_MACROS
30 #include <__undef_macros>
31 
32 #if _LIBCPP_STD_VER >= 20
33 
34 _LIBCPP_BEGIN_NAMESPACE_STD
35 
36 namespace ranges {
37 namespace __find_if_not {
38 struct __fn {
39   template <input_iterator _Ip,
40             sentinel_for<_Ip> _Sp,
41             class _Proj = identity,
42             indirect_unary_predicate<projected<_Ip, _Proj>> _Pred>
43   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr _Ip
operator__fn44   operator()(_Ip __first, _Sp __last, _Pred __pred, _Proj __proj = {}) const {
45     auto __pred2 = [&](auto&& __e) -> bool { return !std::invoke(__pred, std::forward<decltype(__e)>(__e)); };
46     return ranges::__find_if_impl(std::move(__first), std::move(__last), __pred2, __proj);
47   }
48 
49   template <input_range _Rp, class _Proj = identity, indirect_unary_predicate<projected<iterator_t<_Rp>, _Proj>> _Pred>
50   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr borrowed_iterator_t<_Rp>
operator__fn51   operator()(_Rp&& __r, _Pred __pred, _Proj __proj = {}) const {
52     auto __pred2 = [&](auto&& __e) -> bool { return !std::invoke(__pred, std::forward<decltype(__e)>(__e)); };
53     return ranges::__find_if_impl(ranges::begin(__r), ranges::end(__r), __pred2, __proj);
54   }
55 };
56 } // namespace __find_if_not
57 
58 inline namespace __cpo {
59 inline constexpr auto find_if_not = __find_if_not::__fn{};
60 } // namespace __cpo
61 } // namespace ranges
62 
63 _LIBCPP_END_NAMESPACE_STD
64 
65 #endif // _LIBCPP_STD_VER >= 20
66 
67 _LIBCPP_POP_MACROS
68 
69 #endif // _LIBCPP___ALGORITHM_RANGES_FIND_IF_NOT_H
70