1>ClCompile:
1>  main.cpp
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(28): error C2903: 'result' : symbol is neither a class template nor a function template
1>          c:\program files\microsoft visual studio 10.0\vc\include\xxresult(40) : see reference to class template instantiation 'std::tr1::_Result_type1<__formal,_Fty,_Arg0>' being compiled
1>          with
1>          [
1>              __formal=false,
1>              _Fty=A,
1>              _Arg0=int &
1>          ]
1>          c:\program files\microsoft visual studio 10.0\vc\include\xxresult(597) : see reference to class template instantiation 'std::tr1::_Result_of1<_Fty,_Farg0>' being compiled
1>          with
1>          [
1>              _Fty=A,
1>              _Farg0=int &
1>          ]
1>          c:\program files\microsoft visual studio 10.0\vc\include\xxcallobj(13) : see reference to class template instantiation 'std::tr1::_Result_of<_Ty>' being compiled
1>          with
1>          [
1>              _Ty=A (int &)
1>          ]
1>          c:\program files\microsoft visual studio 10.0\vc\include\xxfunction(65) : see reference to function template instantiation '_Ret std::tr1::_Callable_obj<_Ty>::_ApplyX<_Rx,_Arg0&>(int)' being compiled
1>          with
1>          [
1>              _Ret=int,
1>              _Ty=std::tr1::reference_wrapper<A>,
1>              _Rx=int,
1>              _Arg0=int
1>          ]
1>          c:\program files\microsoft visual studio 10.0\vc\include\xxfunction(64) : while compiling class template member function 'int std::tr1::_Impl_no_alloc1<_Callable,_Rx,_Arg0>::_Do_call(_Arg0)'
1>          with
1>          [
1>              _Callable=_MyWrapper,
1>              _Rx=int,
1>              _Arg0=int
1>          ]
1>          c:\program files\microsoft visual studio 10.0\vc\include\xxfunction(386) : see reference to class template instantiation 'std::tr1::_Impl_no_alloc1<_Callable,_Rx,_Arg0>' being compiled
1>          with
1>          [
1>              _Callable=_MyWrapper,
1>              _Rx=int,
1>              _Arg0=int
1>          ]
1>          c:\program files\microsoft visual studio 10.0\vc\include\xxfunction(369) : see reference to function template instantiation 'void std::tr1::_Function_impl1<_Ret,_Arg0>::_Reset0o<_Myimpl,_Fty,std::allocator<_Ty>>(_Fty,_Alloc)' being compiled
1>          with
1>          [
1>              _Ret=int,
1>              _Arg0=int,
1>              _Fty=std::tr1::reference_wrapper<A>,
1>              _Ty=std::tr1::_Function_impl1<int,int>,
1>              _Alloc=std::allocator<std::tr1::_Function_impl1<int,int>>
1>          ]
1>          c:\program files\microsoft visual studio 10.0\vc\include\functional(126) : see reference to function template instantiation 'void std::tr1::_Function_impl1<_Ret,_Arg0>::_Reset<std::tr1::reference_wrapper<_Ty>>(_Fty)' being compiled
1>          with
1>          [
1>              _Ret=int,
1>              _Arg0=int,
1>              _Ty=A,
1>              _Fty=std::tr1::reference_wrapper<A>
1>          ]
1>          c:\users\gaspa\desktop\prova\main.cpp(15) : see reference to function template instantiation 'std::tr1::function<_Fty>::function<A>(std::tr1::reference_wrapper<_Ty>)' being compiled
1>          with
1>          [
1>              _Fty=int (int),
1>              _Ty=A
1>          ]
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(28): error C2039: 'result' : is not a member of 'A'
1>          c:\users\gaspa\desktop\prova\main.cpp(5) : see declaration of 'A'
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(28): error C2143: syntax error : missing ';' before '<'
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(28): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(28): error C2039: 'type' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(28): error C2238: unexpected token(s) preceding ';'
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(40): error C2039: '_Type' : is not a member of 'std::tr1::_Result_type1<__formal,_Fty,_Arg0>'
1>          with
1>          [
1>              __formal=false,
1>              _Fty=A,
1>              _Arg0=int &
1>          ]
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(40): error C2146: syntax error : missing ';' before identifier '_Type'
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(40): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(40): error C2602: 'std::tr1::_Result_of1<_Fty,_Farg0>::_Type' is not a member of a base class of 'std::tr1::_Result_of1<_Fty,_Farg0>'
1>          with
1>          [
1>              _Fty=A,
1>              _Farg0=int &
1>          ]
1>          c:\program files\microsoft visual studio 10.0\vc\include\xxresult(40) : see declaration of 'std::tr1::_Result_of1<_Fty,_Farg0>::_Type'
1>          with
1>          [
1>              _Fty=A,
1>              _Farg0=int &
1>          ]
1>c:\program files\microsoft visual studio 10.0\vc\include\xxresult(40): error C2868: 'std::tr1::_Result_of1<_Fty,_Farg0>::_Type' : illegal syntax for using-declaration; expected qualified-name
1>          with
1>          [
1>              _Fty=A,
1>              _Farg0=int &
1>          ]
1>
1>Build FAILED.