(declare (ignore rtype))
(let* (,@lets
(res (make-string (truncate (the index (+ ,@all-lengths))
- sb!vm:n-byte-bits))))
+ sb!vm:n-byte-bits)
+ :element-type 'base-char)))
(declare (type index ,@all-lengths))
(let (,@(mapcar (lambda (name) `(,name 0)) starts))
(declare (type index ,@starts))