🚀 go-pugleaf

In article <1992Aug7.001510.13418@mri.com>, woolsey@mri.com (Jeff Woolsey) writes:
> Basically, is the following module legal?
> 
> #define it 1,2
> #define that(a,b) a+b
> 
> void f(void) {
> 	that(it);
> 	}

No -- the C police will be showing up any minute now to take you away.
The macro "that" is being called with the wrong number of arguments.
The single argument would expand into a sequence of characters that
includes a comma, but it is still a single argument.  Recognition of
a function-like macro invocation and identification of the arguments
takes place before the arguments themselves are macro replaced.
----
Larry Jones, SDRC, 2000 Eastman Dr., Milford, OH  45150-2789  513-576-2070
Domain: lawrence.jones@sdrc.com               IBMMAIL: USSDR7DR at IBMMAIL
We seem to be out of gun powder. -- Calvin