#defines with variable # arguments

[John Young]

> 
> >     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.