#:ensure-char-integer
#:null-pointer-p
#:make-null-pointer
+ #:make-pointer
+ #:pointer-address
#:+null-cstring-pointer+
#:char-array-to-pointer
#:with-cast-pointer
#:convert-to-foreign-string
#:allocate-foreign-string
#:with-foreign-string
+ #:foreign-string-length
;; function call
#:def-function