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difference between !=(Not equal) and ^(XOR)

Jonah Hague
Greenhorn

Joined: Apr 28, 2008
Posts: 1
Is there another difference between an inequality test on booleans and an Exclusive OR besides the obvious fact that a XOR is only for booleans and a NOT EQUAL is also for ints, floats,...
example:


both of these if-statements seem to accomplish the same thing
Nickolas Case
Ranch Hand

Joined: Apr 26, 2008
Posts: 98
XOR allows you to test against more than one argument and evaluates to true if and only if one of the arguments you are checking against is true.
For example:



Whereas != is only one argument at a time



Hope this helps.
[ April 28, 2008: Message edited by: Nickolas Case ]
Dan Walin
Ranch Hand

Joined: Nov 11, 2003
Posts: 109
just for accuracy, in your sample code shouldn't it be:



Using the equals "==" rather than the assignment "=" operator?
Nickolas Case
Ranch Hand

Joined: Apr 26, 2008
Posts: 98
Yes it should. Adjusted accordingly. :-)
Ilja Preuss
author
Sheriff

Joined: Jul 11, 2001
Posts: 14112
Nickolas

if(true == false^true)

is exactly the same as

if(false^true)

which is equivalent to

if(false!=true)

which again is exactly the same as

if(true == (false!=true))

So I really don't understand the distinction you are making.


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