BUILTIN: string { length array-capacity read-only initial: 0 } aux ;
+PRIMITIVE: <string> ( n ch -- string )
+PRIMITIVE: resize-string ( n str -- newstr )
+
<PRIVATE
+PRIMITIVE: set-string-nth-fast ( ch n string -- )
+PRIMITIVE: string-nth-fast ( n string -- ch )
: string-hashcode ( str -- n ) 3 slot ; inline