Bitwise-AND Operator:  &

  • 项目

AND-expression :

relational-expression
AND-expression**&**equality-expression

The bitwise-AND operator (&) compares each bit of its first operand to the corresponding bit of its second operand. If both bits are 1, the corresponding result bit is set to 1. Otherwise, the corresponding result bit is set to 0.

Example

In the following example, the bitwise-AND operator (&) compares 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

For related information, see bitwise-exclusive-OR, bitwise-inclusive-OR, shift operators, and one's complement.