en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.elem/arrow.sfinae.compile.pass.cpp#658957c7 [libc++][ranges] Implement changes to reverse_iterator from One Ranges Proposal.Changes in [P0896](https://wg21.link/p0896):- add `disable_sized_sentinel_for`;- add `iter_move` and `iter_swap`;- add a `requires` clause to the `operator->`;- add `iterator_concept`;- check that the `Iterator` template parameter is a bidirectional iterator;- add constraints to all comparison operators;- change the definitions of `iterator_category`, `value_type`, `difference_type` and `reference` (changes to `iterator_category` were already implemented).Also add a few forgotten things to the `reverse_iterator` synopsis(notably the spaceship operator).Differential Revision: https://reviews.llvm.org/D120180 List of files: /llvm-project-15.0.7/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.elem/arrow.sfinae.compile.pass.cpp Fri, 18 Mar 2022 02:57:39 +0000 Konstantin Varlamov <varconst@apple.com>