[ALACPP] chapter 8

[Josh Dybnis <jdybnis@xxxxxxxxx>]

I would never use the factory template in my code. It is a degenerate
abstraction over a map template. I would always just use a map
directly. I am calling it degenerate because it does not add any
additional functionality or abstract away any of the details of a map.
All it does is rename the interface methods: map::insert becomes
Factory::Register, map::erase become Factory::Unregister, and map::find
becomes Factory::CreateObject. What's the point?

-Josh
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