The nonexistent operator (along = v. == lines)

[Dave Eisen]

In article <157 at revcan.UUCP> darren at revcan.UUCP (Darren Morbey) writes:
>What I did require was an operator, macro, or function that treated
>its operands as "zero" or "non-zero" as && and || do rather than
>the bitwise & | ^.  I also would like some guarantee that both
>operands were evaluated *once* *and* *only* *once* (O&OO).  Based
>on that, I do recognize that in

#define XOR(a,b)	(!!(a) ^ !!(b))

does what you want.




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Dave Eisen                      
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