example of a functor in main

Question

I have a class Bill, and I wrote this functor in this class

//functor 

    bool operator==(const Bill& other) const;

    void operator()(int x) { sumCost -= x; }

What I don't know, is how to use it in main.

Thanks for help!

Maybe you can find something useful here http://stackoverflow.com/questions/356950/c-functors-and-their-uses?rq=1 — ExoticSeagull, Jul 17 '14 at 17:06
`Bill` itself is a functor. That means you can use an instance of `Bill` like a function. — chris, Jul 17 '14 at 17:06

score 3 · Answer 1 · answered Jul 17 '14 at 17:07

3

Use it in the main will be the same as use in any other function:

int main()
{
    Bill b;
    b( 123 );
    return 0;
}

answered Jul 17 '14 at 17:07

Slava

1 Answers1