Re^2: Bitwise and operator question

A little more of explanation: Realize the following decimal to binary correspondence:

128 = 10000000
64  = 01000000
32  = 00100000
16  = 00010000
8   = 00001000
4   = 00000100
2   = 00000010
1   = 00000001
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A binary AND (&) compares bit to bit 2 numbers. If you have the number 123 (in binary: 01111011):

123 & 128 =
  01111011 (123)
& 10000000 (128)
-----------
  00000000 (0)
= 0

123 & 64
  01111011 (123)
& 01000000 (64)
-----------
  01000000 (64)
= 64

123 & 32
  01111011 (123)
& 00100000 (32)
-----------
  00100000 (32)
= 32

And so on...
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Hope this helps to clarify the script

citromatik

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Re^3: Bitwise and operator question by Severy (Initiate) on Aug 09, 2007 at 15:26 UTC
it does.. thank you very much!	[reply]