Detailed explanation of XOR operation

definition

For the two data involved in the operation, the ^ operation is performed according to the binary digits. If the two corresponding values ​​are the same, the result is 0, otherwise it is 1

1 ^ 0 = 1
0 ^ 1 = 1
0 ^ 0 = 0
1 ^ 1 = 0

characteristic

The XOR ^ operation can only be used for numeric values ​​(integer)

x ^ 0 = x
x ^ x = 0

use

• Swap two values ​​without using a temporary variable

a = a ^ b;
b = b ^ a;
a = a ^ b;

• Checks if two values ​​are equal

((a ^ b) == 0)

Summarize