alloc-array vector-subtype set-vector-subtype vector-access-code set-vector-access-code shrink-vector
typed-vref typed-vset
header-length (header) => size header-ref (header index) => value header-set (header index new-value)
bit-bash byte-blt reverse-find-character reverse-find-character-with-attribute reverse-string-compare sxhash-simple-string sxhash-simple-substring