From: Dave (dave_at_[hidden])
Date: 2001-08-27 11:54:52
Fernando Cacciola wrote:
>
> > has_trivial_constructor
. . .
> > has_no_trivial_constructor
> >
> Off the top of my head I would vote for negative traits and double checking.
> At least, that's what I've been doing and it worked well so far.
Had negative traits been your natural way of thinking,
you would have said, "I vote against positive traits" :-)
Personally, I prefer predicates to be phrased in the
positive sense whenever possible. For example, I
prefer the positive assertion:
has_trivial_constructor
My brain has to make one additional logic inversion for:
has_no_trivial_constructor
I.e., "it is true that the existence of a trivial
constructor is false." But what really hurts is:
has_no_nontrivial_constructor
-- Dave Miller :-)