[Rob wrote:]
I can see that Castor is a splendid and useful library, entirely in its own right, but I'm not clear why you feel it's an appropriate candidate for inclusion in Boost.
On reflection it comes down to the question of what Boost is. Do domain specific libraries of all sorts have a home here (for which I guess examples would include the BGL), or is Boost more about a general programming toolkit (for example Boost.Bind). I don't know the answer to that, not do I feel qualified
The second paragraph on the main page of the Boost website states: "Boost libraries are intended to be widely useful, and usable across a broad spectrum of applications." In practice too, it does not appear to favor domain specific or general purpose libraries. -Roshan