more on TRUE and FALSE (side-comment)

[Larry Jones]

In article <1990Sep18.163533.16008 at zoo.toronto.edu>, henry at zoo.toronto.edu (Henry Spencer) writes:
> My current favorite definition is:
> 
> #define	STREQ(a, b)	(*(a) == *(b) && strcmp((a), (b)) == 0)
> 
> Note that this is an unsafe macro; on the other hand, it is typically
> much faster than one which just calls strcmp every time.  Most string
> comparisons fail on the first character.

And it's slower than one that just calls strcmp every time if your
compiler is smart enough to generate in-line code for strcmp!

Of course, the beauty of a macro is that you can change it without
having to change all the code that uses it.
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