CALL BY VALUE:

CALL  BY  VALUE:

The changes made in the formal arguments will not reflect to atual arguments.

/*  Example for Call by Value  */

void main()
{
int a,b;
void swap(int,int);
clrscr();
printf(“\n enter the 2 integers”);
scanf(“%d%d”,&a,&b);
printf(“\n before swapping   a=%d  \t  b=%d”,a,b);
swap(a,b);
printf(“\n after swapping   a=%d  \t  =%d  “,a,b);
getch();
}
void swap(int x, int y)
{
int temp;
temp=x;
x=y;
y=temp;
}