Question

What does this expression actually mean??

Note – the x and y vars are just sample values.

int x = 3; 
int y = 1; 

if ((x & y) !=0)

I inherited a codebase and am not up to speed on bitwise operators. I have read up, but am still missing something. Help!

Answer 1

It’s comparing the bits in each value. It returns any bits that are set in both numbers.

In your example:

    3:  0011
    1:  0001

3 & 1:  0001