the swap is basically purchasing foreign currency in the spot market and selling at forward or purchasing at forward and selling also at forward swap in purchasing in spot rate and selling at forward and swap out is the opposit of it

void swap (int *a, int *b) {

*a ^= *b;

*b ^= *a;

*a ^= *b;

return;

}

Use a temporary variable. Example (swap variables "a" and "b"): int a = 5; int b = 10; // Swap the variables int temp; temp = a; a = b; b = temp; System.out.println("a = " + a); System.out.println("b = " + b);

Use a temporary variable. Example (swap variables "a" and "b"): int a = 5; int b = 10; // Swap the variables int temp; temp = a; a = b; b = temp; System.out.println("a = " + a); System.out.println("b = " + b);

Use a temporary variable. Example (swap variables "a" and "b"): int a = 5; int b = 10; // Swap the variables int temp; temp = a; a = b; b = temp; System.out.println("a = " + a); System.out.println("b = " + b);

Use a temporary variable. Example (swap variables "a" and "b"): int a = 5; int b = 10; // Swap the variables int temp; temp = a; a = b; b = temp; System.out.println("a = " + a); System.out.println("b = " + b);

swap (int *a, int *b) {

*a ^= *b;

*b ^= *a;

*a ^= *b;

}

int c = 13;

int d = 27;

swap (&c, &d); /*c is now 27 and d is now 13 */

Note: there is no call-by-reference in C. In C++:

void swap (int &a, int &b)

{

. int tmp;

. tmp = a;

. a = b;

. b = tmp;

}