what *p1 ^= *p2; does in c

Question

In C what does this statement do?

*p1 ^= *p2;

p1 and p2 are char pointers pointing to two different address of a char

Answer 1

The bitwise exclusive OR operator (^) compares each bit of its first operand to the corresponding bit of its second operand. If one bit is 0 and the other bit is 1, the corresponding result bit is set to 1. Otherwise, the corresponding result bit is set to 0. Both operands to the bitwise exclusive OR operator must be of integral types. The usual arithmetic conversions covered in Arithmetic Conversions are applied to the operands.