| //===----------------------------------------------------------------------===// |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| //===----------------------------------------------------------------------===// |
| #ifndef _LIBCPP___ITERATOR_MERGEABLE_H |
| #define _LIBCPP___ITERATOR_MERGEABLE_H |
| #include <__functional/identity.h> |
| #include <__functional/ranges_operations.h> |
| #include <__iterator/concepts.h> |
| #include <__iterator/projected.h> |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| #if _LIBCPP_STD_VER >= 20 |
| class _Comp = ranges::less, |
| input_iterator<_Input1> && input_iterator<_Input2> && weakly_incrementable<_Output> && |
| indirectly_copyable<_Input1, _Output> && indirectly_copyable<_Input2, _Output> && |
| indirect_strict_weak_order<_Comp, projected<_Input1, _Proj1>, projected<_Input2, _Proj2>>; |
| #endif // _LIBCPP_STD_VER >= 20 |
| _LIBCPP_END_NAMESPACE_STD |
| #endif // _LIBCPP___ITERATOR_MERGEABLE_H |