[SDL] Problem with reusing array of surfaces.
breadbox at muppetlabs.com
Fri May 9 15:11:02 PDT 2003
[Off-topic for SDL, but a common misconception that I can't let go by]
> I think you can also assume that NULL == 0 on any architecture
> currently in use, so you can just do if(image) ...; to avoid that
> problem entirely.
Actually, the C language requires that a literal zero used as a
pointer shall be understood as a "null pointer constant", regardless
of the actual bit-representation of a null pointer. In other words
p = 0;
will produce a null pointer even on platforms where
memset(p, 0, sizeof p);
Naturally, this also extends to boolean contexts.
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