Can objects contain/return values like a function?

I saw this somewhere and it made me wonder whether the object in question can contain a value like a function.

Code:

---

ofstream out("text.txt");
if(!out) { cout<<"Cannot open file"; return; }
//...

---

If this is possible, can someone please show me how its done?

oOoh looks advanced
Ill have to learn that in detail
thanks anyways

Code:

---

#include<iostream>

class A
{
public:
    A( bool Success = true );
    operator bool() const;
protected:
    bool Error;
};

A::A( bool Success )
    : Error( !Success )
{
}

A::operator bool() const
{
    return Error;
}

int main()
{
    A Thing;
    if( !Thing )
        std::cout << "Error";
    else
        std::cout << "Success";
    return 0;
}

---

Better example.

constructor should be explicit.