Swap

This algorithm exchanges the value of two variables.

• C#
• VB.Net
• C
• C++
• PHP

									function Swap(&$a, &$b) {
	$a ^= $b;
	$b ^= $a;
	$a ^= $b;
}
								

Example

									$a = 1025;
$b = -5579;
Swap($a, $b);
								

Output

									a: -5579
b: 1025