Re: [boost] Re: enable_if and BOOST_NO_SFINAE

From: Jaakko Jarvi (jajarvi_at_[hidden])
Date: 2003-12-03 17:52:28

On Wed, 3 Dec 2003, Douglas Paul Gregor wrote:

> On Thu, 4 Dec 2003, Peter Dimov wrote:
> > David Abrahams wrote:
> > > Jaakko Jarvi <jajarvi_at_[hidden]> writes:
> > >
> > >>
> > >>>> #   if __GNUC__ == 2 && __GNUC_MINOR__ <= 95
> > >>>
> > >>> The regression tests seem to disagree that 2.95.3 can handle
> > >>> enable_if, and in Function I'm using:
> > >>>
> > >>> #if BOOST_WORKAROUND(__GNUC__, < 3)
> > >>
> > >>>> #   if __GNUC__ == 2 && __GNUC_MINOR__ <= 95
> > >>
> > >> This should flag 2.95.3 as BOOST_NO_SFINAE ???
> > >
> > > I think these tests are equivalent.
> >
> > <= 2.95 means "we know it fails with 2.95; we assume that it doesn't fail
> > with later versions."
> >
> > < 3 means "we know that the first version to support it is 3".
>
> Heh, so what happens on GCC 2.96? <ducks>

Rotten tomatoes coming your way... :)

Ok, done the tests.
It works on 2.96, and the test is now:

#   if __GNUC__ == 2 && __GNUC_MINOR__ < 96

  Jaakko