write a program in C using call by reference?

Question

program to calculate the age of a person through month, date and year entered by the user?

Answer 1

The call by reference is one of the time and memory saving ways to call a function.

Go this way...

suppose a main function is their:-

main()
{
int a,b;
int c;
a=30;
b=40;
c=add(a,b);
printf("\nValue of c=",c);
}


and the function for add is:-

int add(int &x,int &y)
{
int z;
z=x+y;
return z;
}

now what happens here is the "&" specifies that the variables used are actually diff name for the original variables. Hence if you change the variables in function then the original variables will also be changed....

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Answer 2

what are you asking ?

by the sound of it anything will do provided the call uses a reference rather than the value as in

myproc (byref myvar)