A question of style

[Wade Guthrie]

In article <565 at s5.Morgan.COM> amull at Morgan.COM (Andrew P. Mullhaupt) writes:
>I would like to elaborate: There are no good excuses for the comma
>operator . . .

and gwyn at smoke.BRL.MIL (Doug Gwyn) responds:
>. . .It has uses primarily in macros, occasionally in conditionals.

I always thought that an interesting use for the comma was in a for
loop when one wanted, say, to create the identity matrix:

	float	array[SIZE][SIZE];
	int	i,j;

	/* initialize the whole thing to zero, then to this: */
	for(i=0,j=0; i<SIZE; i++, j++)
		array[i][j] = 0;

Although, I guess, you don't need two indices for this.


Wade Guthrie
evil at arcturus.UUCP
Rockwell International
Anaheim, CA

(Rockwell doesn't necessarily believe / stand by what I'm saying; how could
they when *I* don't even know what I'm talking about???)