effect of free()
Chris Torek
chris at mimsy.UUCP
Sat Sep 9 14:03:59 AEST 1989
In article <247 at bbxeng.UUCP> scott at bbxeng.UUCP (Engineering) writes:
>In other words - you cannot even *test* a pointer unless you are *sure*
>there is a valid address in it.
More or less.
>I don't think so.
You could send comments to the next ANSI C standards committee asking that
this be changed.
>Is NULL some kind of special exception?
Yes. Nil pointers have always been special exceptions on many machines.
>Before we waste anymore bandwidth with this topic,
Too late.
>does anybody actually know a specific architecture and C compiler combination
>that would cause a problem on a pointer compare?
No, no one knows of any such combination. It is highly unlikely that
any such combination exists, or ever would be written, although I did
describe how to construct one quite recently.
--
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain: chris at mimsy.umd.edu Path: uunet!mimsy!chris
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