0 votes 0 votes The bitwise AND operator & is often used to mask off some set of bits, for example, n = n & 0177 sets to zero all but the low order 7 bits of n. Can anyone please explain how masking is done?? Surya Dhanraj asked Aug 18, 2017 Surya Dhanraj 170 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.