Re: skipping past nil

[mcmullin]

On 19 Mar, Ginger Booth wrote:
> Dear y'all,
> 
>     Once upon a time, somewhere, someone recommended turning on a feature
> of something, to make Swarm/GNU ObjC programs crash when a message is sent
> to a nil pointer.  Unfortunately, I'd already made lots of use of the skip-
> on-past-nil-without-notice feature, and decided not to backtrack at the
> time.  So my app expects [nil messagecall] to simply, quietly, do nothing.
> But someone else is trying to build it on a Linux box, and it crashes on
> this construct.
> 
>     Could anyone tell me what the magic word was that makes this construct
> ignored successfully?  I can't find it in the GNU gcc man page.


Hi Ginger -

The only place I've seen any reference to this is:

http://www.santafe.edu/projects/swarm/swarmdocs/debugging.html

But as I read it, it says the default *is* to ignore
messages on nil, and you actually have to take special
steps to do anything different...

Cheers,

Barry.


-- 

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