Predefined macros for rvalue reference support?

David Fang
Sat Apr 28 19:47:00 GMT 2007

> >> Can someone please tell me how a library can detect whether the
> >> compiler supports rvalue references? I'm trying to enable move
> >> support for boost::shared_ptr. Thanks.
> >
> > Hi,
> > Do you mean at configure-time?
> No, I need a compile time check. The Boost config system is not
> configure-based; it relies on the predefined preprocessor macros.

You mean something like a template metaprogramming test or trait?  one
that doesn't use the rvalue-reference syntax but can still distinguish
between having and not having it?


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