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gen_hierarchy - injecting base classes in C++

Would you like to generate a hierarchy of types on the fly using C++? Well, at least on-the-compilation-fly…
You could always use Andrei’s magnificent Loki library, or you could use my proposal, gen_hierarchy.
In short, I allow for two distinct types of hierarchies:

Spine-like, with the given types protruding as maximal elements on that spine.
A “simple” chain.

Let us [...]

Spirit: parsing without leaving C++

When diving down among the various parser generators and compiler tools around, there is another one – beside BNFC – that sticks out: Spirit. A template-oriented library that is part of the terrific Boost libraries (http://www.boost.org.)
Whereas most tools rely on code generation, and even code generation generation (BNFC…), Spirit is a metaprogramming library that describes [...]