Manjunath Kudlur wrote:
I expected the typeid printed out by the foo function to be equivalent to "int&" whereas I get "readwrite<int>". Any clues on where I am going wrong?
Because that exactly what you ask in argtype ;) What you are missing is the fact that you readonly/readwrite function object are templated and proto can't know they are callable without a small help. So you need to add: namspace boost { namespace proto { template<class T> struct is_callable< readonly<T> > : mpl::true_ {}; template<class T> struct is_callable< readwrite<T> > : mpl::true_ {}; } } As stated in the doc, template trasnform don't trigger the callable stuff automatically -- ___________________________________________ Joel Falcou - Assistant Professor PARALL Team - LRI - Universite Paris Sud XI Tel : (+33)1 69 15 66 35