Re: Predefined macros for rvalue reference support?

[Doug Gregor <dgregor at osl dot iu dot edu>]

On Apr 30, 2007, at 2:25 PM, Paolo Carlini wrote:

> Hi Peter,
>
> > I don't need fine-grained control. I just need a way to detect  
> > rvalue reference support. If -std=c++0x guarantees rvalue  
> > reference support, I can use __GXX_EXPERIMENTAL_CXX0X__ for that.
>
> AFAIK, rvalue references are not yet available in any branch. Of  
> course are forthcoming, a patch is being finalized. This is the  
> last version, I think:
>
>    http://gcc.gnu.org/ml/gcc-patches/2007-04/msg01658.html
>
> Anyway, for your type of work, maybe you should fetch cxx0x-branch:
>
>    http://gcc.gnu.org/projects/cxx0x.html
>
> ... and / or keep in touch with Doug!

We're waiting on verification of a copyright assignment before rvalue  
references go onto the cxx0x-branch. However, the Boost 'OSL5' tester  
has rvalue references support. So, while we wait until this feature  
makes it into GCC 4.3, I have made the OSL5 tester define  
__RVALUE_REFS to state that rvalue references are available. You can  
use that for now; we'll remove it before 4.3 ships.

	- Doug