ref: 4a34b0e05d1f1aa34485d770df9406f80cb90da1 dir: /src/hashing.h/
#pragma once value_t inthash(value_t a) sl_constfn; uint32_t int64to32hash(uint64_t key) sl_constfn; uint64_t memhash(const char* buf, size_t n);