[libc-commits] [libc] [llvm] [libc][stdlib] Implement heap sort. (PR #98582)

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lntue wrote:

> Is it possible to to update `qsort_test.cpp` such that it can run both sorting algos over the same test cases?

I added the unit tests for `internal::quick_sort` and `internal::heap_sort` directly.

https://github.com/llvm/llvm-project/pull/98582