Re: Time to rewrite dpkg

[Anthony Towns <aj@azure.humbug.org.au>]

On Thu, May 20, 1999 at 03:34:27PM +0200, Sven LUTHER wrote:
> Something like 
>         Objective Caml version 2.02
> # let id x = x ;;
> val id : 'a -> 'a = <fun>
> -----------------------------------
> Not sure, but i think we are not talking with the same definition of
> the same word ?

C++ isn't a pure object-oriented language -- not everything is an
object by any means. Nor are all classes subclasses of a single "Object"
superclass, which is what you're making use of above.

But yes, you can write an "id()" function which behaves differently depending
on what is passed to it. Either:

	class foo { virtual int id() { return 1; } };
	class bar : foo { virtual int id() { return 2; } };

	foo f;
	bar b;

	cout << f.id();    // 1
	cout << b.id();    // 2

	// So yours would be:
	int id2(foo x) { return x.id(); }

or:

	int id(int i) { return 1; };
	int id(double d) { return 2; };

	cout << id(1);      // 1
	cout << id(1.0);    // 2

Cheers,
aj, who isn't sure this is particularly relevant to debian-devel anymore.

-- 
Anthony Towns <aj@humbug.org.au> <http://azure.humbug.org.au/~aj/>
I don't speak for anyone save myself. PGP encrypted mail preferred.

       ``There's nothing worse than people with a clue.
             They're always disagreeing with you.'' 
                                 -- Andrew Over