Setting bigger of two values using function returning reference – Computer Sir Ki Class


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Solved Problem #CPP#2757 siteicon   siteicon   siteicon  

Problem Statement - Setting bigger of two values using function returning reference

Write a c++ program using function returning the reference which finds the bigger of two variables
passed it and then it sets the bigger variable to 10 while it is called. Show its implementation by writing the main routine also.


TC++ #2757


  Related (?) :

Run Output

x = 5
y = 10

int& setbigger(int &a,int &b)
This is function definition header which takes two inputs also as reference as it has to return one of the inputs itself as the reference.
if(a>b) return a; //When a and b are compared, it is actually comparing there values and the returned a is actually a reference as it as been passed as a reference.
if(b>a) return b; //Similarly b and a are compared and reference to b is returned.

int x=5,y=7; //Here two variables are declared and initialised. The variable name x and y are actually reference names of the location where such values are stored.

This function call on the left hand side is possible as it is a reference returning function. This function returns reference to bigger of the input variables. So this assigment will make it possible to find bigger of the two variables and assign it to value 10.

cout<<“x = “<<x<<endl;
cout<<“y = “<<y<<endl;
In this case bigger is y so the output will be
x = 5
y = 10


sunmitra| Created: 18-Jan-2018 | Updated: 18-Jan-2018|

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