Macro names imbedded in pp-numbers [repost]

[Larry Jones]

In article <3060 at splut.conmicro.com>, jay at splut.conmicro.com (Jay "you ignorant splut!" Maynard) writes:
> In article <11641 at smoke.BRL.MIL> gwyn at brl.arpa (Doug Gwyn) writes:
> >pp-numbers work well for the
> >intended purpose and cause problems only in very rare circumstances
> >and only for programmers with an obsessive aversion to white space.
> 
> Uhm, Doug...does this mean that the behavior of a program differs with
> the use or non-use of white space? Isn't this different from the rest of
> C?

Well, not to put words in Doug's mouth ;-), but consider the
following:

	i--1	vs	i - -1
	i/*p	vs	i / *p
	i=-1	vs	i = -1	(obsolete)

Although whitespace (or lack thereof) USUALLY doesn't make a
difference, it's not unprecidented.
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