[boost] Re: Re: [preprocessor] warnings on VC6

From: Jonathan Turkanis (technews_at_[hidden])
Date: 2004-03-04 19:56:31

"Paul Mensonides" <pmenso57_at_[hidden]> wrote in message
news:002d01c40245$b0e71630$6401a8c0_at_c161550b...
> > [mailto:boost-bounces_at_[hidden]] On Behalf Of Jonathan
Turkanis
>
> > >    #define PARAM(has_param) BOOST_PP_IF( \
> > >           has_param \
> > >         , BOOST_PP_IDENTITY(typename Param) \
> > >         , BOOST_PP_EMPTY)()
> > >
> >
> > Yes, that's better. It's hard to believe that VC6 could be
> > the only conforming preprocessor on this point. though ;-)
>
> It isn't that other compilers are non-conforming, they just chose a
different
> way to handle undefined behavior.  C++ will likely soon have the new
facilities

Yeah, I realized this after I sent it.

> forward-thinking to handle the undefined behavior, while VC's
preprocessor (all
> the way through VC71) is just a complete relic.

Is it really the same preprocessor?

Jonathan