Passing structure to the Function using call by value and call by reference.....

#include<iostream.h>
#include<conio.h>
#include<stdio.h>
struct person{
        char name[50];
        int age;
};
void disp_val(person p1)
{
        cout<<"\nName of the Person is :- "<<p1.name;
        cout<<"\nAge of the Person is :- "<<p1.age;
}
void disp_ref(person *p1)
{
        cout<<"\nName of the Person is :- "<<p1->name;
        cout<<"\nAge of the Person is :- "<<p1->age;
}
void main()
{
        clrscr();
        person p;
        cout<<"Enter the Person name:- ";
        gets(p.name);
        cout<<"Enter Age of person:- ";
        cin>>p.age;
        cout<<"\n====================================================\n";
        cout<<"\nDisplay Using Structure Passing by value";
        disp_val(p);
        cout<<"\n====================================================\n";
        cout<<"\nDisplay Using Structure Passing by reference";
        disp_ref(&p);
        getch();
}