[boost] MPL not_ etc. questions

From: Jaakko Jarvi (jajarvi_at_[hidden])
Date: 2003-09-05 14:06:20

Hi, 

We're writing enable_if docs and have a question about MPL.  The docs
do not seem to mention metafunctions like not_ or and_; we can find
logical_not, logical_and, etc. which seem to be applying to functions,
not values.

So assuming we have:

class A { static const bool value = true; };

What is the right way to get the inverse of A::value as an MPL wrapped
boolean?

Is it boost::mpl::not_<A> or something else?

  Thanks, 

    Jaakko & Jeremiah

PS. The reference manual was a bit hard to find, as the link was not
in the table of contents of the main MPL documentation page.