Thread: Can objects be used as built-ins?

I'm wondering if and how to make a class return an integer without calling a member function.

Example

Code:

int bar (int a); 

int main()
{
  Foo f(); // create a Foo object

  // Example A
  int a;

  a = f + 1; // Treat f as an int

  // Example B
  a = bar(f); // Treat f as an int

  // Example C
  return f; // Treat f as an int
}

Example A can be done with operator overloading. But what about B and C?


I want to do this so I can make a class, FifoPtr, that behaves exactly like an int except when assigning a new value to it, it does a (% size) before assigning. I'd like to do it without having to call Foo::get_val() or something in examples B and C.

Any ideas?