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C++ function overloading

Like many other programming language, overloading is a mechanism to create multiple function with same name but different parameters, you might need to have the same naming for different functionality.

C++ example to create function overloading

In the below example you can see that there are 2 functions with same name called: tellMeAboutYou

1- First function has 2 parameters: int age and string name
2- Second function has only 1 parameter: string name

Calling this function twice with appropriate parameters will result with different behaviors, see Output !

#include <iostream>

#include<string>

using namespace std;

string tellMeAboutYou(string name) {
  return "My name is: " + name;
}

string tellMeAboutYou(int age, string name) {
  return name + " age is: " + to_string(age);
}

int main() {
  cout << tellMeAboutYou(35, "Jhon") << "\n";
  cout << tellMeAboutYou("Jhon");
  return 0;
}

Output

Jhon age is: 35
My name is: Jhon


Conclusion

In this page (written and validated by ) you learned about C++ function overloading . What's Next? If you are interested in completing Cpp tutorial, your next topic will be learning about: Cpp Pointer.



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