Function_Overloading.cpp

#include <bits/stdc++.h>
using namespace std;

//Very simple examples are used for better understanding the concepts

void add(int a, int b) {
    cout << a + b << endl;
}

void add(double a, double b) {
    cout << a + b << endl;
}

void add(int a) {
    cout << 1 + a << endl;
}

/*
ALERT !!! (ERROR)
int add(int a) {
    return a+1;
}
*/

int main() {
    /*
        Why Function Overloading (Static Polymorphism) is required at all ?
        Ans: Same functionality but takes different argument types

        Overload Resolution ?
        Ans: Function selection by compiler is called Overload Resolution (done in compile time)

        Note:
          - Binding happens at compile time.
          - Two functions having same signature but different return types cannot be overloaded (ALERT !!!)
          - Overloading allows "Static Polymorphism" (Explained in Polymorphism section)
        Types :
            - Same      # of parameters but of different types
            - Different # of parameters
    */

    add(1, 2);
    add(1.3, 2.3);
    add(3);

return 0;
}