Atomic #defines (was Re: Password checking program)

[Maarten Litmaath]

gwyn at smoke.BRL.MIL (Doug Gwyn) writes:
\In article <13569 at bloom-beacon.MIT.EDU> scs at adam.pika.mit.edu (Steve Summit) writes:
\...
\>	#define ERROR (EOF-1)
\
\Don't do this.  You don't know what EOF might be defined as, so
\this might not work right.

What should he use instead?

	#define	ERROR	(-2)

... might not work either!
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