d2baefae68
All supported compilers that support C++20 now support concepts. So, remove `_LIB_LIBCPP_HAS_NO_CONCEPTS` in favor of `_LIBCPP_STD_VER > 17`. Similarly in the tests, remove `// UNSUPPORTED: libcpp-no-concepts`. Differential Revision: https://reviews.llvm.org/D121528
36 lines
985 B
C++
36 lines
985 B
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ITERATOR_PERMUTABLE_H
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#define _LIBCPP___ITERATOR_PERMUTABLE_H
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#include <__config>
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#include <__iterator/concepts.h>
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#include <__iterator/iter_swap.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER > 17
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template <class _Iterator>
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concept permutable =
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forward_iterator<_Iterator> &&
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indirectly_movable_storable<_Iterator, _Iterator> &&
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indirectly_swappable<_Iterator, _Iterator>;
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#endif // _LIBCPP_STD_VER > 17
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ITERATOR_PERMUTABLE_H
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