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Re: String memory leak
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Re: String memory leak


  • Subject: Re: String memory leak
  • From: email@hidden (Peter Robinson)
  • Date: Sat, 1 Apr 2006 23:33:43 +0100

Bruce Truax <email@hidden> wrote:

> On 4/1/06 10:56 AM, "Peter Robinson" <email@hidden> wrote:

> > In other words, do this:
> >
> > - (void)GLASS:(NSString *)parameterString
> > {
> >      [aSurface setGlass:[NSString stringWithFormat:
> >          @"GLASS %@", parameterString]];
> >      [aSurface setSurfaceNumber:surfaceNumber];
> >      surfaceNumber++;
> >      [surfaceArray addObject:aSurface];
> >      [aSurface release];                   // <-----------
> >      aSurface = [[ACSurface alloc]init];
> > }
>
> That is exactly what I thought but when I release aSurface as you show my
> program crashes because the pointer in surfaceArray is corrupted.  Perhaps I
> have another problem earlier in the code which is causing this problem.

You must have.  I suggest you check all the other places you are
assigning to the aSurface instance variable (or -releasing,
-autoreleasing or -retaining it).  This kind of problem is exactly why
it's a good idea to isolate this stuff in a setter method as Andy
suggests.

(I'm assuming surfaceArray is some kind of NSArray or similar.  If in
fact it's your own code, the first place to look is in its -addObject:
method.)

Regards,

Peter
--
Peter Robinson
<http://www.ticketswitch.com/> Concerts, sport and theatre tickets
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