From mboxrd@z Thu Jan  1 00:00:00 1970
Message-Id: <200309161516.h8GFG2j02250@augusta.math.psu.edu>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] g++
In-Reply-To: Your message of "Tue, 16 Sep 2003 09:17:52 +1200."
             <5.1.1.6.0.20030916090722.00a98c58@pop.monitorbm.co.nz>
From: Dan Cross <cross@math.psu.edu>
Date: Tue, 16 Sep 2003 11:16:02 -0400
Topicbox-Message-UUID: 3ae167c0-eacc-11e9-9e20-41e7f4b1d025

> That, and inventing the "Singleton" design pattern, for use on those
> occasions when someone's holding a gun to your head trying to force you to
> create an unnecessary second instance of a class. I invented the
> "Doppelganger" and "Trifecta" patterns, for when you need exactly two or
> three instances of a class, but they've never caught on.

I like `trifecta'.  I've never had much luck at the aquaduct, though.

I'm not sure they invented the idea of a singleton, though (and I agree;
it's actually useful).  I believe they themselves say that nothing in the
book was new, it was just a collection of the better known, and useful
constructions.

	- Dan C.