34 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_INDIRECTLY_COMPARABLE_H11#define _LIBCPP___ITERATOR_INDIRECTLY_COMPARABLE_H12 13#include <__config>14#include <__functional/identity.h>15#include <__iterator/concepts.h>16#include <__iterator/projected.h>17 18#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)19# pragma GCC system_header20#endif21 22_LIBCPP_BEGIN_NAMESPACE_STD23 24#if _LIBCPP_STD_VER >= 2025 26template <class _I1, class _I2, class _Rp, class _P1 = identity, class _P2 = identity>27concept indirectly_comparable = indirect_binary_predicate<_Rp, projected<_I1, _P1>, projected<_I2, _P2>>;28 29#endif // _LIBCPP_STD_VER >= 2030 31_LIBCPP_END_NAMESPACE_STD32 33#endif // _LIBCPP___ITERATOR_INDIRECTLY_COMPARABLE_H34