xref: /openbsd-src/gnu/llvm/libcxx/include/__iterator/indirectly_comparable.h (revision 4bdff4bed0e3d54e55670334c7d0077db4170f86)
1*4bdff4beSrobert // -*- C++ -*-
2*4bdff4beSrobert //===----------------------------------------------------------------------===//
3*4bdff4beSrobert //
4*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information.
6*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7*4bdff4beSrobert //
8*4bdff4beSrobert //===----------------------------------------------------------------------===//
9*4bdff4beSrobert 
10*4bdff4beSrobert #ifndef _LIBCPP___ITERATOR_INDIRECTLY_COMPARABLE_H
11*4bdff4beSrobert #define _LIBCPP___ITERATOR_INDIRECTLY_COMPARABLE_H
12*4bdff4beSrobert 
13*4bdff4beSrobert #include <__config>
14*4bdff4beSrobert #include <__functional/identity.h>
15*4bdff4beSrobert #include <__iterator/concepts.h>
16*4bdff4beSrobert #include <__iterator/projected.h>
17*4bdff4beSrobert 
18*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
19*4bdff4beSrobert #  pragma GCC system_header
20*4bdff4beSrobert #endif
21*4bdff4beSrobert 
22*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD
23*4bdff4beSrobert 
24*4bdff4beSrobert #if _LIBCPP_STD_VER > 17
25*4bdff4beSrobert 
26*4bdff4beSrobert template <class _I1, class _I2, class _Rp, class _P1 = identity, class _P2 = identity>
27*4bdff4beSrobert concept indirectly_comparable =
28*4bdff4beSrobert   indirect_binary_predicate<_Rp, projected<_I1, _P1>, projected<_I2, _P2>>;
29*4bdff4beSrobert 
30*4bdff4beSrobert #endif // _LIBCPP_STD_VER > 17
31*4bdff4beSrobert 
32*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD
33*4bdff4beSrobert 
34*4bdff4beSrobert #endif // _LIBCPP___ITERATOR_INDIRECTLY_COMPARABLE_H
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