1*4bdff4beSrobert //===----------------------------------------------------------------------===// 2*4bdff4beSrobert // 3*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information. 5*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*4bdff4beSrobert // 7*4bdff4beSrobert //===----------------------------------------------------------------------===// 8*4bdff4beSrobert 9*4bdff4beSrobert #ifndef _LIBCPP___ALGORITHM_RANGES_IS_HEAP_H 10*4bdff4beSrobert #define _LIBCPP___ALGORITHM_RANGES_IS_HEAP_H 11*4bdff4beSrobert 12*4bdff4beSrobert #include <__algorithm/is_heap_until.h> 13*4bdff4beSrobert #include <__algorithm/make_projected.h> 14*4bdff4beSrobert #include <__config> 15*4bdff4beSrobert #include <__functional/identity.h> 16*4bdff4beSrobert #include <__functional/ranges_operations.h> 17*4bdff4beSrobert #include <__iterator/concepts.h> 18*4bdff4beSrobert #include <__iterator/iterator_traits.h> 19*4bdff4beSrobert #include <__iterator/next.h> 20*4bdff4beSrobert #include <__iterator/projected.h> 21*4bdff4beSrobert #include <__ranges/access.h> 22*4bdff4beSrobert #include <__ranges/concepts.h> 23*4bdff4beSrobert #include <__utility/move.h> 24*4bdff4beSrobert 25*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 26*4bdff4beSrobert # pragma GCC system_header 27*4bdff4beSrobert #endif 28*4bdff4beSrobert 29*4bdff4beSrobert #if _LIBCPP_STD_VER > 17 30*4bdff4beSrobert 31*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD 32*4bdff4beSrobert 33*4bdff4beSrobert namespace ranges { 34*4bdff4beSrobert namespace __is_heap { 35*4bdff4beSrobert 36*4bdff4beSrobert struct __fn { 37*4bdff4beSrobert 38*4bdff4beSrobert template <class _Iter, class _Sent, class _Proj, class _Comp> 39*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr __is_heap_fn_impl__fn40*4bdff4beSrobert static bool __is_heap_fn_impl(_Iter __first, _Sent __last, _Comp& __comp, _Proj& __proj) { 41*4bdff4beSrobert auto __last_iter = ranges::next(__first, __last); 42*4bdff4beSrobert auto&& __projected_comp = std::__make_projected(__comp, __proj); 43*4bdff4beSrobert 44*4bdff4beSrobert auto __result = std::__is_heap_until(std::move(__first), std::move(__last_iter), __projected_comp); 45*4bdff4beSrobert return __result == __last; 46*4bdff4beSrobert } 47*4bdff4beSrobert 48*4bdff4beSrobert template <random_access_iterator _Iter, sentinel_for<_Iter> _Sent, class _Proj = identity, 49*4bdff4beSrobert indirect_strict_weak_order<projected<_Iter, _Proj>> _Comp = ranges::less> 50*4bdff4beSrobert _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr operator__fn51*4bdff4beSrobert bool operator()(_Iter __first, _Sent __last, _Comp __comp = {}, _Proj __proj = {}) const { 52*4bdff4beSrobert return __is_heap_fn_impl(std::move(__first), std::move(__last), __comp, __proj); 53*4bdff4beSrobert } 54*4bdff4beSrobert 55*4bdff4beSrobert template <random_access_range _Range, class _Proj = identity, 56*4bdff4beSrobert indirect_strict_weak_order<projected<iterator_t<_Range>, _Proj>> _Comp = ranges::less> 57*4bdff4beSrobert _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr operator__fn58*4bdff4beSrobert bool operator()(_Range&& __range, _Comp __comp = {}, _Proj __proj = {}) const { 59*4bdff4beSrobert return __is_heap_fn_impl(ranges::begin(__range), ranges::end(__range), __comp, __proj); 60*4bdff4beSrobert } 61*4bdff4beSrobert }; 62*4bdff4beSrobert 63*4bdff4beSrobert } // namespace __is_heap 64*4bdff4beSrobert 65*4bdff4beSrobert inline namespace __cpo { 66*4bdff4beSrobert inline constexpr auto is_heap = __is_heap::__fn{}; 67*4bdff4beSrobert } // namespace __cpo 68*4bdff4beSrobert } // namespace ranges 69*4bdff4beSrobert 70*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD 71*4bdff4beSrobert 72*4bdff4beSrobert #endif // _LIBCPP_STD_VER > 17 73*4bdff4beSrobert 74*4bdff4beSrobert #endif // _LIBCPP___ALGORITHM_RANGES_IS_HEAP_H 75