C++ LANGUAGE FUNCTION OVERLOADING

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C++ LANGUAGE FUNCTION OVERLOADING

Function Overloading in C++ 


You can have multiple definitions for the same function 
name in the same scope. The definition of the function 
must differ from each other by the types and/or the number 
of arguments in the argument list. You cannot overload 
function declarations that differ only by return type. 

Following is the example where same function print() 
is being used to print different data types: 

#include <iostream> 
using namespace std; 
  
class printData  
{ 
   public: 
      void print(int i) { 
        cout << "Printing int: " << i << endl; 
      } 
 
      void print(double  f) { 
        cout << "Printing float: " << f << endl; 
      } 
25. OVERLOADING (OPERATOR & FUNCTION) 
 
      void print(char* c) { 
        cout << "Printing character: " << c << endl; 
      } 
}; 
 
int main(void) 
{ 
   printData pd; 
  
   // Call print to print integer 
   pd.print(5); 
   // Call print to print float 
   pd.print(500.263); 
   // Call print to print character 
   pd.print("Hello C++"); 
  
   return 0; 
} 

When the above code is compiled and executed, it produces the following result: 

Printing int: 5 
Printing float: 500.263 
Printing character: Hello C++