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bla!! · 07-07-2005, 05:48 PM

Ok this might take a bit.

But lets go operator by operator.

Not
The only unary operatory (only works on one bit string) is the ~.

This operator does just what you described, it switches all 0's to 1's and all 1's to 0's.

For example

Code:

Starting Number: 11011001

~11011001 = 00100110

And

And (&) works on two bit patterns. It analyzes each corresponding bit position within each pattern. If both bits are the same (both are 1's or both are 0's), it results in a 1 in the final bit pattern, if they are different, it results in a 0.

For example

Code:

 
x     = 10010101
y     = 01011011
x & y = 00110001

Exclusive Or

Exclusive Or (^), sometimes referred to a XOR, also works on two bit patterns. It is the exact opposite of the and operator. If both bits are the same (both are 1's or both are 0's), it results in a 0 in the final bit pattern, if they are different, it results in a 0.

For example

Code:

These are the same numbers from the AND example.

x     = 10010101
y     = 01011011
x ^ y = 11001110

Notice how X^Y is the exact opposite of X&Y.

Or

The last bitwise operator is OR. This works very similar to the Exclusive Or. If both bits in the initial bit patterns are 1's, it results in a 0, for all other conditions it results in a 1.

For example

Code:

x     = 10010101
y     = 01011011
x | y = 11101110

I'll post back with some interesting uses of these later tonight. Right now it's time to get outta work!

07-07-2005, 05:48 PM	#2 (permalink)
bla!! Monster Techie Join Date: May 2004 Location: /usr/root/mn/us Posts: 1,121	Ok this might take a bit. But lets go operator by operator. Not The only unary operatory (only works on one bit string) is the ~. This operator does just what you described, it switches all 0's to 1's and all 1's to 0's. For example Code: Starting Number: 11011001 ~11011001 = 00100110 And And (&) works on two bit patterns. It analyzes each corresponding bit position within each pattern. If both bits are the same (both are 1's or both are 0's), it results in a 1 in the final bit pattern, if they are different, it results in a 0. For example Code: x = 10010101 y = 01011011 x & y = 00110001 Exclusive Or Exclusive Or (^), sometimes referred to a XOR, also works on two bit patterns. It is the exact opposite of the and operator. If both bits are the same (both are 1's or both are 0's), it results in a 0 in the final bit pattern, if they are different, it results in a 0. For example Code: These are the same numbers from the AND example. x = 10010101 y = 01011011 x ^ y = 11001110 Notice how X^Y is the exact opposite of X&Y. Or The last bitwise operator is OR. This works very similar to the Exclusive Or. If both bits in the initial bit patterns are 1's, it results in a 0, for all other conditions it results in a 1. For example Code: x = 10010101 y = 01011011 x \| y = 11101110 I'll post back with some interesting uses of these later tonight. Right now it's time to get outta work! __________________ <br> Its a frigging Laptop, not a Labtop!!!!