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35 lines
950 B
C++
35 lines
950 B
C++
//===----------------------------------------------------------------------===//
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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___CONCEPTS_SAME_AS_H
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#define _LIBCPP___CONCEPTS_SAME_AS_H
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#include <__config>
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#include <__type_traits/is_same.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 >= 20
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// [concept.same]
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template <class _Tp, class _Up>
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concept __same_as_impl = _IsSame<_Tp, _Up>::value;
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template <class _Tp, class _Up>
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concept same_as = __same_as_impl<_Tp, _Up> && __same_as_impl<_Up, _Tp>;
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#endif // _LIBCPP_STD_VER >= 20
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___CONCEPTS_SAME_AS_H
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