[libcxx-commits] [PATCH] D127049: [libc++] Unwrap reverse_iterator<reverse_iterator<Iter>> in __unwrap_iter

[Nikolas Klauser via Phabricator via libcxx-commits]

philnik created this revision.
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Simplify the implementation of `std::copy` and `std::move` by using `__unwrap_iter` and `__rewrap_iter` to unwrap and rewrap `reverse_iterator<reverse_iterator<Iter>>` instead of specializing `__copy_impl` and `__move_impl`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127049

Files:
  libcxx/include/__algorithm/copy.h
  libcxx/include/__algorithm/unwrap_iter.h
  libcxx/test/libcxx/algorithms/alg.modifying.operations/copy.pass.cpp
  libcxx/test/libcxx/algorithms/unwrap_iter.compile.pass.cpp

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