What is Function Overloading?

Function overloading provides a way to have multiple functions with the same name. For each call of the function, the compiler compares the number and type of the arguments in the call against the parameter lists of each version of the function.

The compiler selects the appropriate version. This process is call function resolution. Overloaded functions can have different type and number of arguments. However, the return type needs to be the same.

//Code Example for function overloading
    void DisplaySum(int x, int y)
    {
        cout<<"Programmers Heaven C++ FAQ - Integer result: "<<(x+y);
    }
    void DisplaySum(double x, double y)
    {
        cout<< "Programmers Heaven C++ FAQ - Double result: "<<(x+y);
    }
    void DisplaySum(float x, float y)
    {
        cout<< "Programmers Heaven C++ FAQ - float result: "<<(x+y);
    }

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