Bitwise Operators

In C, there are 6 bitwise operators.
Let's assume 2 variables.

int a = 6;
int b = 2;

AND

int c = a & b;    // (1)! 

1. Performs logical AND between 2(10) and 6(110), hence the result is 2(10).

OR

int c = a | b;    // (1)! 

1. Performs logical OR between 2(010) and 6(110), hence the result is 6(110).

XOR

int c = a ^ b;    // (1)!

1. Performs logical XOR between 2(010) and 6(110), hence the result is 4(100).

Left Shift

int c = a << 2;    // (1)!

1. Shifts the value of a(which is 2, 10 in binary) towards left side by 2 bits. Hence the result is 8(1000). After the shifting, the vacated bits are 0.

Right Shift

int c = a >> 1;  // (1)!

1. Shifts the value of a(which is 2, 10 in binary) towards right side by 1 bit. Hence the result is 1(1). After the shifting, the vacated bits are 0.

One's Complement

int c = ~a;    // (1)!

1. Flips the bits of a (2 = 00000000000000000000000000000010 to 11111111111111111111111111111101 which is -3 in binary).