[libcxx-commits] [libcxx] [libc++][ranges] implement `std::ranges::zip_transform_view` (PR #79605)

[Louis Dionne via libcxx-commits]

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ldionne wrote:

This seems to be more or less a copy of `libcxx/test/std/ranges/range.adaptors/range.zip/types.h` with a bit more stuff in it. Can we share instead?

https://github.com/llvm/llvm-project/pull/79605