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___CXX03___ALGORITHM_RANGES_ANY_OF_H 10 #define _LIBCPP___CXX03___ALGORITHM_RANGES_ANY_OF_H 11 12 #include <__cxx03/__config> 13 #include <__cxx03/__functional/identity.h> 14 #include <__cxx03/__functional/invoke.h> 15 #include <__cxx03/__iterator/concepts.h> 16 #include <__cxx03/__iterator/projected.h> 17 #include <__cxx03/__ranges/access.h> 18 #include <__cxx03/__ranges/concepts.h> 19 #include <__cxx03/__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 <__cxx03/__undef_macros> 27 28 #if _LIBCPP_STD_VER >= 20 29 30 _LIBCPP_BEGIN_NAMESPACE_STD 31 32 namespace ranges { 33 namespace __any_of { 34 struct __fn { 35 template <class _Iter, class _Sent, class _Proj, class _Pred> 36 _LIBCPP_HIDE_FROM_ABI constexpr static bool __any_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 true; 40 } 41 return false; 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 [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool 49 operator()(_Iter __first, _Sent __last, _Pred __pred = {}, _Proj __proj = {}) const { 50 return __any_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 [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool 57 operator()(_Range&& __range, _Pred __pred, _Proj __proj = {}) const { 58 return __any_of_impl(ranges::begin(__range), ranges::end(__range), __pred, __proj); 59 } 60 }; 61 } // namespace __any_of 62 63 inline namespace __cpo { 64 inline constexpr auto any_of = __any_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___CXX03___ALGORITHM_RANGES_ANY_OF_H 75