About function overloading?

#1

what is function overloading ?and what is the difference between function overloading and constructor overloading?

#2

Hello @17manishms,

Function overloading is a feature in C++ where two or more functions can have the same name.
These functions differ by:

  1. No. of parameters passed.
  2. Type of parameters passed.
  3. Order of parameters passed.

At the time of function call, the compiler maps the appropriate function definition with the function call.
Example:

  1. void fun1(int a){}
  2. void fun1(char a){}
  3. void fun1(int a, int b){}
  4. void fun1(int a, float b){}
  5. void fun1(float a, int b){}

Calls:

  1. fun1(2)
    //1. function 1 will be called.
  2. fun1(‘A’)
    //function 2 will be called.
  3. fun1(1,2)
    //function 3 will be called.
  4. fun1(1,2.1)
    //function 4 will be called.
  5. fun1(2.1,1)
    //function 5 will be called.

What is constructor?
A special function which is used to initialize the data members of the class.

What is constructor overloading?
It is a type of function overloading where the function that has been overloaded is a constructor.

How can we overload it?
By using different types of constructors for a class.

Types?

  1. Default
    //With no parameters
  2. Parameterized
    //With parameters
  3. Copy constructor

Hope, this would help.
Give a like if you are satisfied.

#3

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