OK, I'll look more closely to see if I'm stomping on memory I shouldn't be. It
seems I'm not misusing NSData which is what I was most worried about. I must be
overwriting something important for dTempData somehow.
Thanks for the help.
--- Scott Stevenson <email@hidden> wrote:
>
> On Mar 20, 2007, at 6:04 PM, Sam Waters wrote:
>
> > I've found that if I do this:
> >
> > NSData * dTempData = [NSData dataWithBytes:pBytes length:iLen];
> >
> > and later on do this:
> >
> > NSData * dTempData2 = [NSData dataWithBytes:pOtherBytes
> > length:iOtherLen];
> >
> > then everything is fine for both Intel and PPC, but am worried I'm
> > doing
> > something fundamentally wrong. PLEASE let me know if I'm doing
> > something
> > terribly wrong here, I'm new at this!
>
> I think the bug is probably outside of the code you're showing us
> because there's no way for NSData to know which variable you're
> assigning object pointer to.
>
> Try something like this:
>
> NSData * dTempData = [NSData dataWithBytes:pBytes length:iLen];
> pOtherBytes = pBytes;
> iOtherLen = iLen;
> dTempData = [NSData dataWithBytes:pOtherBytes length:iOtherLen];
>
> If that works, then it's probably a problem with the way either
> pOtherBytes or iOtherLen is being set up. On the other hand, if it
> still crashes, then it might have something to do with the way
> dTempData is being used after the second assignment.
>
> As for why you see problems on Intel and not PowerPC, it's hard to
> say without knowing seeing the context of the rest of the code.
>
> - Scott
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