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35 lines
1.0 KiB
C++
Vendored
35 lines
1.0 KiB
C++
Vendored
// -*- 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_INDIRECTLY_COMPARABLE_H
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#define _LIBCPP___ITERATOR_INDIRECTLY_COMPARABLE_H
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#include <__config>
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#include <__functional/identity.h>
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#include <__iterator/concepts.h>
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#include <__iterator/projected.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 _I1, class _I2, class _Rp, class _P1 = identity, class _P2 = identity>
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concept indirectly_comparable =
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indirect_binary_predicate<_Rp, projected<_I1, _P1>, projected<_I2, _P2>>;
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#endif // _LIBCPP_STD_VER > 17
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ITERATOR_INDIRECTLY_COMPARABLE_H
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