Re: Initializing an Array

FROM : John C. Randolph
DATE : Tue Jan 22 22:35:59 2002

On Tuesday, January 22, 2002, at 01:19 PM, Jeff Galyan wrote:
> Well, here's the rub: when I malloc or calloc something and
> then free it
> after use (in Cocoa, and after ensuring it's non-NULL), I get a
> segfault
> when the ObjC runtime tries to free it again.

Well, of course.  If you want NSObject's -dealloc method to free
some memory, you shouldn't be doing it, too.

It sounds like your problem is a result of mixing malloc() with
+alloc.  If you're allocating storage for an Obj-C instance,
don't use malloc(), use +alloc.  If you want an
arbitrarily-sized block of bytes, try using NSData and
NSMutableData.

-jcr


"This is not a book to be tossed aside lightly.  Rather, it
should be hurled with great force." -Dorothy Parker