#:deref-pointer
#:ensure-char-character
#:ensure-char-integer
+ #:ensure-char-storable
#:null-pointer-p
#:make-null-pointer
#:make-pointer
#:char-array-to-pointer
#:with-cast-pointer
#:def-foreign-var
+ #:convert-from-foreign-usb8
;; string functions
#:convert-from-cstring