Question

1. In 5 complete sentences using your own words explain what is reference variables? Give an example where passing argument by reference would be useful?
   
   
2. Write a function named HeightInInches() that accepts two arguments - height in feet and height in inches. When the function is called, it should return a value that is height converted to inches in total. Write the function: (For example: If a person's height is 5' 5" then the function should return 65")

Answer 1

Answer

• A reference variable is an alternate name for an already existing variable
• Once a reference is initialized with a variable we can't change it
• if we perform any changes on the reference variables than changes will be applicable on the original value
• A reference must be initialized when it is created unlike pointers
• if we want to return multiple values from a function than it is not possible to return in that scenario we use pass by reference so that it will modify the original value from that function

#include<iostream>
using namespace std;
int HeightInInches(int f,int i){
return f*12+i;
}

int main(){
int f,i;
cout<<"Enter heigtht feets and inches: ";
cin>>f;
cin>>i;
cout<<"Height in inches : "<<HeightInInches(f,i);
return 0;

}