#define OR ||

[Ken Yap]

|This is the old slogan: UNIX users always *know* what they do; C users always
|*know* what they do. To my experience, practice and the discussions in
|comp.lang.c prove the contrary. So why not help them to avoid some common
|pitfalls by defining some adequate macros?

But macros introduce their own pitfalls too. I once wanted to strangle
the programmer who wrote

#define	K	*1000

so that one could write:

	resistance = 10K;

You can imagine what happened when somebody declared the variable K.