[libcxx-commits] [libcxx] [libc++] Create a `constexpr` hash to use during constant evaluation (PR #214946)

[Vinay Deshmukh via libcxx-commits]

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vinay-deshmukh wrote:

Got it, makes sense.
Qq:

To make sure this hash class is usable for the unordered containers, do you think making it pass the tests in `libcxx/test/std/utilities/function.objects/unord.hash/` is sufficient or shall I also parameterize all such instantiations of `std::hash` in other tests (except usage in containers)

https://github.com/llvm/llvm-project/pull/214946