Re: [boost] [type traits] incomplete types

John Maddock ha escrito:

David Abrahams wrote:

[...]

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I once again recommend the use of the MPL assertion suite for improved error messages.

:-)

Point taken, I'd need an "is_incomplete" predicate for that though, any takers? Or would it be a recipe for ODR violations even trying to implement such a beast?

My gut feeling at present is that this is more trouble than it's worth...

If you only want the predicate for displaying purposes, maybe you can use something like this: template<typename T,std::size_t Size> struct is_complete:boost::mpl::bool_<Size>{}; BOOST_MPL_ASSERT((is_complete<foo,sizeof(foo)>)); Joaquín M López Muñoz Telefónica, Investigación y Desarrollo