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_LOWER_BOUND_H 10 #define _LIBCPP___ALGORITHM_RANGES_LOWER_BOUND_H 11 12 #include <__algorithm/lower_bound.h> 13 #include <__config> 14 #include <__functional/identity.h> 15 #include <__functional/invoke.h> 16 #include <__functional/ranges_operations.h> 17 #include <__iterator/advance.h> 18 #include <__iterator/concepts.h> 19 #include <__iterator/iterator_traits.h> 20 #include <__iterator/projected.h> 21 #include <__ranges/access.h> 22 #include <__ranges/concepts.h> 23 #include <__ranges/dangling.h> 24 25 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 26 # pragma GCC system_header 27 #endif 28 29 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 30 31 _LIBCPP_BEGIN_NAMESPACE_STD 32 33 namespace ranges { 34 35 namespace __lower_bound { 36 struct __fn { 37 template <forward_iterator _Iter, sentinel_for<_Iter> _Sent, class _Type, class _Proj = identity, 38 indirect_strict_weak_order<const _Type*, projected<_Iter, _Proj>> _Comp = ranges::less> 39 _LIBCPP_HIDE_FROM_ABI constexpr 40 _Iter operator()(_Iter __first, _Sent __last, const _Type& __value, _Comp __comp = {}, _Proj __proj = {}) const { 41 return std::__lower_bound_impl(__first, __last, __value, __comp, __proj); 42 } 43 44 template <forward_range _Range, class _Type, class _Proj = identity, 45 indirect_strict_weak_order<const _Type*, projected<iterator_t<_Range>, _Proj>> _Comp = ranges::less> 46 _LIBCPP_HIDE_FROM_ABI constexpr 47 borrowed_iterator_t<_Range> operator()(_Range&& __r, 48 const _Type& __value, 49 _Comp __comp = {}, 50 _Proj __proj = {}) const { 51 return std::__lower_bound_impl(ranges::begin(__r), ranges::end(__r), __value, __comp, __proj); 52 } 53 }; 54 } // namespace __lower_bound 55 56 inline namespace __cpo { 57 inline constexpr auto lower_bound = __lower_bound::__fn{}; 58 } // namespace __cpo 59 } // namespace ranges 60 61 _LIBCPP_END_NAMESPACE_STD 62 63 #endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 64 65 #endif // _LIBCPP___ALGORITHM_RANGES_LOWER_BOUND_H 66