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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___ITERATOR_SORTABLE_H11#define _LIBCPP___ITERATOR_SORTABLE_H12 13#include <__config>14#include <__functional/identity.h>15#include <__functional/ranges_operations.h>16#include <__iterator/concepts.h>17#include <__iterator/permutable.h>18#include <__iterator/projected.h>19 20#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)21# pragma GCC system_header22#endif23 24_LIBCPP_BEGIN_NAMESPACE_STD25 26#if _LIBCPP_STD_VER >= 2027 28template <class _Iter, class _Comp = ranges::less, class _Proj = identity>29concept sortable = permutable<_Iter> && indirect_strict_weak_order<_Comp, projected<_Iter, _Proj>>;30 31#endif // _LIBCPP_STD_VER >= 2032 33_LIBCPP_END_NAMESPACE_STD34 35#endif // _LIBCPP___ITERATOR_SORTABLE_H36