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_ANY_OF_H 10 #define _LIBCPP___ALGORITHM_RANGES_ANY_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 #if _LIBCPP_STD_VER >= 20 26 27 _LIBCPP_BEGIN_NAMESPACE_STD 28 29 namespace ranges { 30 namespace __any_of { 31 struct __fn { 32 template <class _Iter, class _Sent, class _Proj, class _Pred> 33 _LIBCPP_HIDE_FROM_ABI constexpr static bool __any_of_impl(_Iter __first, _Sent __last, _Pred& __pred, _Proj& __proj) { 34 for (; __first != __last; ++__first) { 35 if (std::invoke(__pred, std::invoke(__proj, *__first))) 36 return true; 37 } 38 return false; 39 } 40 41 template <input_iterator _Iter, 42 sentinel_for<_Iter> _Sent, 43 class _Proj = identity, 44 indirect_unary_predicate<projected<_Iter, _Proj>> _Pred> 45 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool 46 operator()(_Iter __first, _Sent __last, _Pred __pred = {}, _Proj __proj = {}) const { 47 return __any_of_impl(std::move(__first), std::move(__last), __pred, __proj); 48 } 49 50 template <input_range _Range, 51 class _Proj = identity, 52 indirect_unary_predicate<projected<iterator_t<_Range>, _Proj>> _Pred> 53 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool 54 operator()(_Range&& __range, _Pred __pred, _Proj __proj = {}) const { 55 return __any_of_impl(ranges::begin(__range), ranges::end(__range), __pred, __proj); 56 } 57 }; 58 } // namespace __any_of 59 60 inline namespace __cpo { 61 inline constexpr auto any_of = __any_of::__fn{}; 62 } // namespace __cpo 63 } // namespace ranges 64 65 _LIBCPP_END_NAMESPACE_STD 66 67 #endif // _LIBCPP_STD_VER >= 20 68 69 #endif // _LIBCPP___ALGORITHM_RANGES_ANY_OF_H 70