C: Bitwise NOT on certain bit

Question

My question is rather simple, yet I cannot find an easy solution: I have an integer greater or eqal 16, so at least 1000 in binary. I wish to flip the third bit using the bitwise NOT operator. In this case, it would be 1100.

Is there any operator which could do this? The ~-operator flips all bits as far as I know, not just one certain.

Answer 1

XOR with the bits that you want to flip.

int c = 0x10; // 10000b
int m = 0x08; // 01000b
c ^= m;       // 11000b

Answer 2

Do

bit_fld ^= (1 << n)

where bit_fld is the bit field, and n=3 for third bit.