+
+(uffi:def-function "strlen"
+ ((str (* :unsigned-char)))
+ :returning :unsigned-int)
+
+(defun native-to-string (s)
+ (declare (optimize (speed 3) (space 0) (safety 0) (compilation-speed 0)))
+ (let* ((len (strlen s))
+ (str (make-string len)))
+ (declare (fixnum len)
+ (simple-string str))
+ (do ((i 0))
+ ((= i len))
+ (declare (fixnum i))
+ (setf (schar str i)
+ (code-char (uffi:deref-array s '(:array :unsigned-char) i)))
+ (incf i))
+ str))