<=> and obfuscation

[Yogesh K Gupta]

> > 	To exchange two items without an intermediate variable, try:
> > 
> > 	b ^= a ^= b ^= a
>
>  This works for integer variables only.

In C, the ^ is a bitwise operator. Thus,
	b ^= a ^= b ^= a
will exchange the bit patterns in the two variables.
As long as the two variables are of the SAME type, the values will be
swapped.

As to the efficiency and programming style ...

-- 
Yogesh Gupta                           Advanced Systems Group,
{sdcrdcf, sdcsvax}!bmcg!asgb!gupta     Burroughs Corp., Boulder, CO.
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