program to use of function call by value

107./*Write a program to use of function call by value*/

#include<stdio.h>

#include<conio.h>

main()

{

            int a;

            a=200;

            clrscr();

            printf("\na=%d",a);

            add(a);

            printf("\nAFTER RETURN FROM FUNCTION a=%d",a);

            getch();

            }

            add(int a)

            {

            a=a+200;

            printf("\nIN FUNCTION a=%d",a);

            return;

}

OUTPUT

            A = 200

            IN FUNCTION a = 400

            AFTER RETURN FROM FUNCTION a = 200