[Boost-users] [phoenix] std::function doesn't work with phoenix ?

When I try to do this is VC++ 2010 : #include <functional> #include #include float Func() {  return 1.f; } typedef std::function F; int main() {  F f2 = boost::phoenix::bind(&Func);   }   It failed to compile, but when I change boost::phoenix::bind to boost::bind it compiled just fine. What's going on ? I thought phoenix::bind and boost::bind is interchangeable.