[libcxx-commits] [PATCH] D129099: [libcxx][ranges] Create a test tool `ProxyIterator` that customises `iter_move` and `iter_swap`

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It is meant to be used in ranges algorithm tests.
It is much simplified version of C++23's tuple + zip_view.
Using std::swap would cause compilation failure and using `std::move` would not create the correct rvalue proxy which would result in copies.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D129099

Files:
  libcxx/test/support/test.support/test_proxy.pass.cpp
  libcxx/test/support/test_proxy.h

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