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Re: [Bug c++/19199] [3.3/3.4/4.0/4.1 Regression] Wrong warning aboutreturning a reference to a temporary
On Mon, 7 Mar 2005, Mark Mitchell wrote:
> Steven Bosscher wrote:
> > On Monday 07 March 2005 19:49, Mark Mitchell wrote:
> >
> > > The way I think about this is that G++ has long supported the GNU
> > > min/max expression extension -- and it's long been broken. Over the
> > > years, I've fielded several bug reports about that extension, and we've
> > > gradually cleaned it up, but mostly it's just been neglected.
> >
> > So, maybe the extension is not used very much. Perhaps it should be
> > removed?
>
> I don't think it's used very much. It doesn't buy you much brevity, and in
> C++, you would generally use std::max/std::min anyhow.
>
> I'd be happy to see it (deprecated and then) removed, but I think we'd need
> buy-in from the C front end maintainers. As extensions go, it's actually not
> that bad; the semantics are relatively well defined.
The min/max expression extension is C++ only, the C front end doesn't have
it.
(Removing the extension is separate from the question of whether MIN_EXPR
and MAX_EXPR are useful parts of GENERIC to facilitate some
optimizations.)
--
Joseph S. Myers http://www.srcf.ucam.org/~jsm28/gcc/
jsm@polyomino.org.uk (personal mail)
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