As I see Boost C++ Libraries (1.42) doesn't support rvalue references under Visual C++ 10.0 (Visual Studio 2010) - there is no definition of BOOST_HAS_RVALUE_REFERENCES (and BOOST_NO_RVALUE_REFERENCES too) for Visual C++ 10.0. Does anybody know why it is so and when will it be supported? (and will it be so?) Regards, Marat.