1fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 2fe6060f1SDimitry Andric // 3fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6fe6060f1SDimitry Andric // 7fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 8fe6060f1SDimitry Andric 9fe6060f1SDimitry Andric #ifndef _LIBCPP___ALGORITHM_INCLUDES_H 10fe6060f1SDimitry Andric #define _LIBCPP___ALGORITHM_INCLUDES_H 11fe6060f1SDimitry Andric 12fe6060f1SDimitry Andric #include <__algorithm/comp.h> 13fe6060f1SDimitry Andric #include <__algorithm/comp_ref_type.h> 1404eeddc0SDimitry Andric #include <__config> 15972a253aSDimitry Andric #include <__functional/identity.h> 16972a253aSDimitry Andric #include <__functional/invoke.h> 17fe6060f1SDimitry Andric #include <__iterator/iterator_traits.h> 18972a253aSDimitry Andric #include <__type_traits/is_callable.h> 19fcaf7f86SDimitry Andric #include <__utility/move.h> 20fe6060f1SDimitry Andric 21fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 22fe6060f1SDimitry Andric # pragma GCC system_header 23fe6060f1SDimitry Andric #endif 24fe6060f1SDimitry Andric 25fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 26fe6060f1SDimitry Andric 27972a253aSDimitry Andric template <class _Iter1, class _Sent1, class _Iter2, class _Sent2, class _Comp, class _Proj1, class _Proj2> 28bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool 29972a253aSDimitry Andric __includes(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last2, 30972a253aSDimitry Andric _Comp&& __comp, _Proj1&& __proj1, _Proj2&& __proj2) { 31fcaf7f86SDimitry Andric for (; __first2 != __last2; ++__first1) { 32972a253aSDimitry Andric if (__first1 == __last1 || std::__invoke( 33972a253aSDimitry Andric __comp, std::__invoke(__proj2, *__first2), std::__invoke(__proj1, *__first1))) 34fe6060f1SDimitry Andric return false; 35972a253aSDimitry Andric if (!std::__invoke(__comp, std::__invoke(__proj1, *__first1), std::__invoke(__proj2, *__first2))) 36fe6060f1SDimitry Andric ++__first2; 37fe6060f1SDimitry Andric } 38fe6060f1SDimitry Andric return true; 39fe6060f1SDimitry Andric } 40fe6060f1SDimitry Andric 41fe6060f1SDimitry Andric template <class _InputIterator1, class _InputIterator2, class _Compare> 42bdd1243dSDimitry Andric _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool includes( 43fcaf7f86SDimitry Andric _InputIterator1 __first1, 44fcaf7f86SDimitry Andric _InputIterator1 __last1, 45fcaf7f86SDimitry Andric _InputIterator2 __first2, 46fcaf7f86SDimitry Andric _InputIterator2 __last2, 47fcaf7f86SDimitry Andric _Compare __comp) { 48972a253aSDimitry Andric static_assert(__is_callable<_Compare, decltype(*__first1), decltype(*__first2)>::value, 49972a253aSDimitry Andric "Comparator has to be callable"); 50972a253aSDimitry Andric 51fcaf7f86SDimitry Andric return std::__includes( 52bdd1243dSDimitry Andric std::move(__first1), 53bdd1243dSDimitry Andric std::move(__last1), 54bdd1243dSDimitry Andric std::move(__first2), 55bdd1243dSDimitry Andric std::move(__last2), 56bdd1243dSDimitry Andric static_cast<__comp_ref_type<_Compare> >(__comp), 57bdd1243dSDimitry Andric __identity(), 58bdd1243dSDimitry Andric __identity()); 59fe6060f1SDimitry Andric } 60fe6060f1SDimitry Andric 61fe6060f1SDimitry Andric template <class _InputIterator1, class _InputIterator2> 62bdd1243dSDimitry Andric _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool 63fcaf7f86SDimitry Andric includes(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2) { 64*06c3fb27SDimitry Andric return std::includes(std::move(__first1), std::move(__last1), std::move(__first2), std::move(__last2), __less<>()); 65fe6060f1SDimitry Andric } 66fe6060f1SDimitry Andric 67fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 68fe6060f1SDimitry Andric 69fe6060f1SDimitry Andric #endif // _LIBCPP___ALGORITHM_INCLUDES_H 70