undefined
-- r7rs
Type set-car!
;set-cdr!
;list-set!
;for-each
;vector-copy!
;vector-fill!
;vector-set!
;vector-for-each
;string-copy!
;string-fill!
;string-set!
;string-for-each
;bytevector-copy!
;bytevector-u8-set!
;close-port
;close-input-port
;close-output-port
;write-u8
;write-bytevector
;write-char
;write-string
;newline
;flush-output-port
;write
;write-simple
;write-shared
;display
;delete-file
;load
;