Call by reference
In
the call by reference method, instead of passing values to the function that is
being called, references/pointers to the original variables are passed.
int
a=1;
void
fun(int*x)
fun(&a);
{
Definition;
}
Note:
Any modification which is done to variable ‘a’ will change the outside
function.
Example:
void
main()
{
int
a=10; //a is read as 10
printf(“%d”,a);
fun(a);
printf(“%d”,a);
//a is read as 10
}
void
fun(int x) //a is read as 10
{
printf(“%d”,x);
x++;
prinf(“%d”,x)
//x is read as 11
}
OUTPUT
10
10 11 11
