warning: operation on 'zero' may be undefined

[Nathan Sidwell]

Steven L. Zook wrote:
> Personally I prefer
> 
> http://www.eskimo.com/~scs/C-faq/q3.2.html
> 
> which I think goes to the heart of the issue of when the increment is allowed to happen in ++zero.

The best description I've seen (which I thought was there), involves
each assignment being the process of writing the value on a ball and
throwing it at the lvalue location.  You only guarantee to catch it
at the next sequence point, and if it collides with another ball, tough.

nathan

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