Which bitwise operator is suitable for checking whether a particular bit is ON or OFF?

Tripti Tiwari

Tripti Tiwari

Oct 04, 2013


    Mukesh Kumar
    September 04, 2017

    Bitwise And operator

    Rahul Prajapat
    June 10, 2015

    Bitwise AND operator.
    Example: Suppose in byte that has a value 10101101 . We wish to check whether bit number 3 is ON (1) or OFF
    (0) . Since we want to check the bit number 3, the second operand for AND operation we choose is binary
    00001000, which is equal to 8 in decimal.
    ANDing operation :
    10101101 original bit pattern
    00001000 AND mask
    00001000 resulting bit pattern
    The resulting value we get in this case is 8, i.e. the value of the second operand. The result turned out to be a 8
    since the third bit of operand was ON. Had it been OFF, the bit number 3 in the resulting bit pattern would have
    evaluated to 0 and complete bit pattern would have been 00000000. Thus depending upon the bit number to be
    checked in the first operand we decide the second operand, and on ANDing these two operands the result
    decides whether the bit was ON or OFF.

    Tripti Tiwari
    October 04, 2013