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# Bitwise OR and AND

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What´s the diffrence between bitwise OR (|) and AND (&&)?

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check your lovely c/c++ reference book...

because i''m a nice dude:

0&0 = 0
0&1 = 0
1&0 = 0
1&1 = 1

0|0 = 0
0|1 = 1
1|0 = 1
1|1 = 1

"take a look around" - limp bizkit

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Also, be careful with your |s, ||s, &s and &&s.

The ones with the double symbols (|| and &&) are logical operators as opposed to bitwise ones.

How To Ask Questions The Smart Way | Google can help with your question | Search MSDN for help with standard C or Windows functions

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would you like coffee OR tea?
would you like coffee AND tea?
would you like coffee XOR tea?

simple, isn''t it?

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I don''t know, maybe it should be "do you have coffee and tea?"

How To Ask Questions The Smart Way | Google can help with your question | Search MSDN for help with standard C or Windows functions

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For bitwise OR(|) the result is 1 if either of the two bits is 1.

For bitwise AND(&) the result is 1 if BOTH of the two bits is 1, and always 0 otherwise.

For bitwise XOR(^) called "exclusive or" the result is 1 if either of the two bits is 1, BUT NOT IF BOTH are 1 or BOTH are 0.

"aut viam inveniam aut faciam " - I will either find a way or make one.

MoonStar Projects

[edited by - Ronin Magus on December 27, 2002 11:12:21 AM]

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Just a note; in normal language, "or" is usually equivalent to logical eXclusive OR (XOR). The expression "and/or" is equivalent to logical OR.

So,
OR.: would you like coffee and/or tea?
AND: would you like coffee and tea?
XOR: would you like coffee or tea?

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CWizard, great sig I was thinking of doing something like that...

but now I can''t, because I would be copying you

"aut viam inveniam aut faciam" - I will either find a way or make one.

MoonStar Projects

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quote:
would you like coffee XOR tea?

how would one pronounce this? eks-or or zor?

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quote:
would you like coffee XOR tea?

how would one pronounce this? eks-or or zor?

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