Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!decwrl!labrea!rutgers!mtunx!whuts!homxb!hropus!jgy
From: jgy@hropus.UUCP (John Young)
Newsgroups: comp.unix.wizards
Subject: Re: #defines with variable # arguments
Message-ID: <152@hropus.UUCP>
Date: 13 May 88 22:21:54 GMT
References: <2855@phoenix.Princeton.EDU> <52949@sun.uucp>
Distribution: na
Organization: Bell Labs, Holmdel, NJ
Lines: 14
Posted: Fri May 13 18:21:54 1988

> 
> >     Are there any versions of cpp which allow one to define macros which
> > accept variable numbers of arguments?

I think that some of the AT&T CPLU compilers(cpp's) allow this,
you just overdeclare the arguments:

#define   Dprintf(a,b,c,d,e,f,g,h,i) {if (Debug) printf(a,b,c,d,e,f,g,h,i);}

and compile.  You will get a warning about each source line which uses
the wrong number of arguments.