The exclusive or (xor)

The following table recalls the values of the exclusive or of 2 bits, denoted by xor:

0 ^ 0 = 0

0 ^ 1 = 1

1 ^ 0 = 1

1 ^ 1 = 0

In Java, or in C/C++, the binary operator ^ implements the bitwise xor on machine words. In C++, it supports every integer types: bool, char, short, int, long et and their unsigned variants.

Example :
  int i,j;
  ...
  int k = i ^ j ;

computes in k the bitwise xor of the two integers "int" i and j.
Thus, for i=23="10111"  and j=134="10000110", we have k= 145= "10010001" as shown in the following table:

	10111	23	(16+4+2+1)
^	10000110	134	(128+4+2)
=	10010001	145	(128+16+1)