ref: 9e0a5c0c9bfcb4fe6b4b91149ffff93f3a9e8766 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);