Bugs in RISC System/6000 C compiler

[jim frost]

jim at segue.segue.com (Jim Balter) writes:
>In article <9756 at bunny.GTE.COM> hhd0 at GTE.COM (Horace Dediu) writes:
>[ problems with macros ]

>The problem is most likely in your CAT macro, which probably looks like

>#define CAT(a,b)  a/**/b

>instead you should use

>#ifdef __STDC__
>#define CAT(a,b) a##b
>#else
>#define IDENT(x)x
>#define CAT(a,b)IDENT(a)b
>#endif

Yes, it depends on mode.  In `cc' mode (-qlanglvl=extended) the
old-style concatenation works.  In `xlc' mode (ANSI) you must use the
double-sharp.

Thus you can write:

#ifdef __STDC__
#define CAT(a,b) a##b
#else
#define CAT(a,b) a/**/b
#endif

jim frost
saber software
jimf at saber.com