Is this question directed to me? VC10 has RTMed, doesn't define macros for specific libraries, and already reports whether it supports rvalue references. (Inspecting _MSC_VER is the correct way to determine whether rvalue references are supported. During VC10's development, we had the compiler define a couple of macros to indicate support for rvalue references, and specifically rvalue references v2, because our branch structure interferes with inspecting _MSC_VER. Those macros are undocumented and unsupported and may be removed at any time, which is why I'm not mentioning their names.) STL -----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Richard Webb Sent: Tuesday, April 20, 2010 11:49 AM To: boost@lists.boost.org Subject: Re: [boost] [config] vc10 and BOOST_NO_DECLTYPE Speaking of the VC10 config, do you have any thoughts about the issue mentioned in https://svn.boost.org/trac/boost/ticket/4112 ? Should VC10 define BOOST_HAS_RVALUE_REFS for the benefit of smart_ptr? _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost