35 lines · c
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_PERMUTABLE_H11#define _LIBCPP___ITERATOR_PERMUTABLE_H12 13#include <__config>14#include <__iterator/concepts.h>15#include <__iterator/iter_swap.h>16 17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)18# pragma GCC system_header19#endif20 21_LIBCPP_BEGIN_NAMESPACE_STD22 23#if _LIBCPP_STD_VER >= 2024 25template <class _Iterator>26concept permutable =27 forward_iterator<_Iterator> && indirectly_movable_storable<_Iterator, _Iterator> &&28 indirectly_swappable<_Iterator, _Iterator>;29 30#endif // _LIBCPP_STD_VER >= 2031 32_LIBCPP_END_NAMESPACE_STD33 34#endif // _LIBCPP___ITERATOR_PERMUTABLE_H35