accidentally.

remain safe, they cannot be modifiedarguments is possible within from called

function; therefore the code must handle
arguments’ carefully else ‏ںہ‎ get
unexpected results.

#include

*/

int main() /* Main function */

{
int n1 = 10, n2 = 20;

/* actual argurrents will be as it is 7
swapByValue(n1, ೧2);
printf("n1: %d,n2: %d\n", n1, n2}

ச்‌

void swapByValue(int a, int b)

OUTPUT

11: 10, ೧2: 20

void swapByValue(int, int); /* Prototype void

#include

swapByReference(int*, int*); /*

Prototype */

int main() /* Main function */

{
int n1 = 10, n2 = 20;

/* actual arguments wil be altered */
swapByReference(&n1, &n2);
printf("n1: %d, ೧2: 9605", ೧1, ೧2);

ச்‌

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

int t;

t= *a; *a = *b; *b =t;

7

OUTPUT

ni: 20, ೧2: 10

10

formal parameter — the identifier used in a method to stand for the value that is passed into

the method by a caller.

actual parameter — the actual value that is passed into the method by a caller.

11.