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From: jso@edison.UUCP
Newsgroups: net.lang.c
Subject: Re: #if foo vs #if defined(foo)
Message-ID: <819@edison.UUCP>
Date: Mon, 7-Jul-86 13:20:58 EDT
Article-I.D.: edison.819
Posted: Mon Jul  7 13:20:58 1986
Date-Received: Sat, 12-Jul-86 06:13:41 EDT
References: <1586@brl-smoke.ARPA> <379@twitch.UUCP>
Organization: General Electric Company, Charlottesville, VA
Lines: 21
Keywords: cpp #if

In article <379@twitch.UUCP>, grt@twitch.UUCP ( G.R.Tomasevich) writes:
> #if squat||foo
> 
> if the 'cc' command includes either '-Dsquat' or '-Dfoo', then 'yes' is
> selected, else 'no' is selected.  E.g.: 'cc -Dfoo -E c.c'
> 	George Tomasevich, ihnp4!twitch!grt

Fine, since -Dfoo is the same as '#define foo 1', but what about
#define	foo
or
#define	foo	something

Do either of these work with
#if	squat||foo
?  I doubt it, since the #if is a *numeric* if.

	John Owens @ General Electric Company	(+1 804 978 5726)
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