Re: [Boost-users] need some metaprogramming ideas

I think I can implement checks for streamable through the sizeof trick...haven't thought of the exact way yet but I think it should work.

I can't think of how to test for CopyConstructable or DefaultConstructable though. Any ideas?

Unfortunately I don't believe those two are testable for in C++03, in C++0x of course one can use concepts for that purpose. John.