aggregates in structs returned by values are invalid pointers

Bug #1474776 reported by 3b
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
CFFI
New
Undecided
Unassigned

Bug Description

(defcstruct cc
  (a :char :count 4)
  (b :char :count 4))

(defcfun "makepair" (:struct cc)) ;; from the fsbv tests, intended to return struct containing 2 ints
(makepair)
;; =>
(B #.(SB-SYS:INT-SAP #X09F8FFF4) A #.(SB-SYS:INT-SAP #X09F8FFF0))

As far as I can tell, those are pointers into a struct which was allocated by WITH-FOREIGN-OBJECT within the MAKEPAIR defcfun, so are no longer valid after it returns.

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.