^ (Bitwise xor)

• Bitwise AND (&), Bitwise OR (|), Bitwise XOR (^)

Bitwise xor（^）

There is a uncommon operator in C++ named bitwise xor , which is represented by ‘^'. This operator is very similar to bitwise or（|）, and the difference is if both the two bits are 1, the result is 0：

0 0 1 1 Operand 1 0 1 0 1 Operand 2

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0 1 1 0（Operand 1 ^ operand 2） - The returned result Another explanation of bitwise xor is if the two values of the bits are same, the result is 0, otherwise it is 1.

The following is a simple code example：

    int x = 12;     // Binary: 1100
    int y = 10;     // Binary: 1010
    int z = x ^ y;  // Binary: 0110,  or decimal 6
// Blink_Pin_5
//Demonstrate “xor”
void setup(){
DDRD = DDRD | B00100000; //Set digital pin 5 as output.
serial.begin（9600）;
}
 
void loop ()   {
PORTD = PORTD ^ B00100000;  // Reverse the fifth bit（digital pin 5）, and keep others unchanged. 
delay(100);
}

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