Define Bitwise-AND Operator: &:?
The bitwise-AND operator (&) compares every bit of its first operand to the corresponding bit of its second operand. If both bits are 1 the matching result bit is set to 1. or else the corresponding result bit is set to 0.
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x
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y
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x & y
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0
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0
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0
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0
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1
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0
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1
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0
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0
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1
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1
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1
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In the following instance the bitwise-AND operator (&) contrast the bits of two integers nNumA and nNumB:
// Example of the bitwise-AND operator
int nNumA=1, nNumB=3, nNumC; // 00000001, 00000011
nNumC = nNumA & nNumB; // nNumC is now 1