Andrei Alexandrescu Wrote: > > One question that bugs me is, where do you draw the line? Say there's a > metaprogramming problem at hand. How to decide on solving it with CTFE > vs. solving it with templates? It would be great to have a simple > guideline that puts in contrast the pluses and minuses of the two > approaches. > > It is quite possible that templates get relegated to parameterized > functions and types, whereas all heavy lifting in metaprogramming should > be carried with CTFE.
That would certainly be my preferred division. Templates can be used as a replacement for interfaces when the overhead can't be tolerated. D's ranges make heavy use of this. Templates can avoid virtual function calls and keep object size small. Having abused this a bit too much, I'd love to be able to template modules... import whatever!(int) : foo, bar, baz;
