[libcxx-commits] [libcxx] [libc++] Implement a type-safe iterator for optional (PR #154239)

[Louis Dionne via libcxx-commits]

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ldionne wrote:

This file should be e.g. `libcxx/test/std/utilities/optional/optional.iterator/compare.pass.cpp` since it's already under `optional.iterator`.

https://github.com/llvm/llvm-project/pull/154239