messages to nil

[Rick Riolo]

One of our users asked about messages to nil and what
a pain it is that they don't generate a warning.

It would sure be nice if there was a flag in gcc that could
tell it to compile things (or link to a particular runtime lib) so that
messages to nil would generate warnings.

Is such a thing possible with gcc?
The user thought he had read somewhere that there was an easy
patch to something that would make messages to nil generate warnings.
Anyone know anything about that?

thanks!
- r

ps What was the original reason for messages to nil 
   being ok and not generating any warning?
   It does seem to trip programmers up, allowing for somewhat
   difficult to find bugs.

Rick Riolo                           address@hidden
Program for Study of Complex Systems (PSCS)
4068 Randall Lab                
University of Michigan         Ann Arbor MI 48109-1120
Phone: 313 763 3323                  Fax: 313 763 9267
http://www.pscs.umich.edu/PEOPLE/rlr-home.html


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