I am using Visual Studio 2008 SP1 with the Intel 11.0 compiler and boost 1.38. I am compiling with the pre-processor directive: BOOST_HAS_TR1 (though I am not sure this does what I thought it did does since I see boost::tuples is used below). When I use the native tr1 function, I am unable to put a boost::lambda into it (which worked fine with boost::function), I get an errors. Any ideas? Here is the sample code: using boost::lambda::_1; auto f = _1; std::tr1::function f2(f); std::cout << f2(2.0) << endl; Here is the error. 1>C:\Program Files\Microsoft Visual Studio 9.0\VC\include\xxfunction (73): error: no suitable conversion function from 1> "const boost::lambda::lambda_functorboost::lambda::addressof_action, boost::tuples::tuple>, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>>>" to "const void *" exists 1> return (&_Callee._Get()); 1> ^ 1> detected during: 1> instantiation of "const void *std::tr1::_Impl1<_Callable, _Rx, _Arg0, _Alloc>::_Get() const [with _Callable=std::tr1::_Callable_obj>, false>, _Rx=double, _Arg0=double, _Alloc=std::allocator<int>]" at line 46 1> instantiation of "std::tr1::_Impl1<_Callable, _Rx, _Arg0, _Alloc>::_Impl1(_Callable::_MyTy &, _Alloc::rebind>::other) [with _Callable=std::tr1::_Callable_obj>, false>, _Rx=double, _Arg0=double, _Alloc=std::allocator<int>]" at line 165 1> instantiation of "void std::tr1::_Function_impl1<_Ret, _Arg0>::_Reset(_Fty, _Alloc) [with _Ret=double, _Arg0=double, _Fty=boost::lambda::lambda_functor>, _Alloc=std::allocator<int>]" at line 970 of "C:\Program Files \Microsoft Visual Studio 9.0\VC\include\functional" 1> instantiation of "std::tr1::function<_Fty>::function (_Fx) [with _Fty=double (double), _Fx=boost::lambda::lambda_functor>]" at line 41 of "C:\working\libraries\etk\test\meta\test_mathfunctions.cpp"