Output Writing – Function Returning reference – Computer Sir Ki Class


Lost your password?

Don't have an account ?
Register (It's FREE) ×


Solved Problem #CPP#5265    siteicon   siteicon  

Problem Statement - Output Writing – Function Returning reference

Write output of the following code. Assume inclusion of related header files.

int &min(int &a, int &b)
  if (a<b) return a;
  else return b;

int main()
  int x=2,y=3;
  cout<<"x-y = "<<(x-y)<<endl;
  cout<<"y-x = "<<(y-x)<<endl;
  return 0;


TC++ #5265

  Related (?) :

Run Output

x-y= 7
y-x = -7


int &min(int &a, int &b)   if (a<b) return a; else return b;
Returns reference to a or b whichever is lower by its value content.

int x=2,y=3; 
Left side is supposed to be a function, since the function returns a reference of memory location it has been placed on left side. The returned reference will be filled with value 10. In this case x is lower so x will be filled with 10.

cout<<“x-y = “<<(x-y)<<endl;
Since x is now 10 and y is 3 so this will print 7.

cout<<“y-x = “<<(y-x)<<endl;

Since  y is 3 and x is 10 so this will print -7.


CSKC| Created: 4-Dec-2018 | Updated: 4-Dec-2018|

Introductory Sessions Beginning to Program Tokens Keyword and Identifiers Data Types Variables and Constants Operators Simple User Input Building Expressions and Formulas Simple Real World Problems Simple If and If Else Multiple-Nested-Ladder of If Else Switch case selection Simple Loops Tricks in Loops - break continue scope Loop Applications - Handling numerals Series printing loops Nested Loops Pattern printing loops Number Varieties and Crunches String Handling (Null Terminated) Strings - string class type Functions (Built-in) Functions - user defined Functions Reference Passing/Returning Arrays Concepts and 1-D Arrays Array Data Management Two dimensional arrays and Matrices Structures Basics Structures passing/returning 2D Array Memory Addressing Display Using IO Manipulation Display Using C Formatting Tricks User Defined Data Types Enumerated Types Preprocessor Directives And Macros Exception Handling Programming Paradigms and OOPs Advantages Abstraction and Encapsulation Polymorphism Inheritance Function Overloading Concepts Function Overloading Varieties Function Overloading Special Cases Defining Classes Creating and Using Class Objects Class Members Accessibility Class Function Types Inline Functions Constant Functions Nesting of Functions Class Members Scope Resolution Static Members in a Class Array of Objects Constructor Concepts Default Constructor Parameterized Constructor Copy Constructor Constructor Overloading Destructors Inheritance Fundamentals Public Derivations Private and Protected Derivations Multiple Inheritance Multi-Level Inheritance Class Nesting Data File Concepts Handling Text Files Handling Binary Files Pointer Concepts Pointer and Arrays Pointers and Functions Object Pointers This Pointer Linked Lists Stacks Queues