(cffi:defcstruct path-t
  (status status-t)
  (data (:pointer (:pointer (:struct path-data-t))))
  (numdata :int))  

The data structure for holding a path. This data structure serves as the return value for the cairo:copy-path and cairo:copy-path-flat functions as well the input value for the cairo:append-path function. See the cairo:path-data-t documentation for more information.

The numdata member gives the number of elements in the data array. This number is larger than the number of independent path portions, defined in the cairo:path-data-type-t structure, since the data includes both headers and coordinates for each portion.