cquenel@pyrglass (Chris Quenelle) (09/08/88)
One common thread to this discussion is "ways to 'define out' a function call with a variable number of parameters". for instance, you have : DEBUG_fprintf(stderr,"error number %d\n", errnumber); and you would like a define that "disables" it, by making compile to nothing when a certain define is set. I have tried #define DEBUG_fprintf 1 ? 0 : and it is guaranteed not to _call_ DEBUG_fprintf, but it MAY generate code for it. Actually any decent compiler should throw it away entirely. The effect is as if you had done something like this: statement; 5; other-statement; or statement; 1 ? 5 : 7; other-statement; both perfectly legal C. "works for me." --chris -----------------------------|@---@ -=----|--------------------------------- |Chris Quenelle (The Lab Rat)|\. ./ + --==---| on hold | |ucbvax!voder!polyslo!cquenel| \ / ---===--| | -----------------------------|==o== ----====-|---------------------------------