[Olena-patches] [Olena] #253: convert::from_to is not flexible for the user

#253: convert::from_to is not flexible for the user ---------------------+------------------------------------------------------ Reporter: lazzara | Owner: lazzara Type: defect | Status: new Priority: major | Milestone: Component: Milena | Version: 2.0 Keywords: | ---------------------+------------------------------------------------------ convert::from_to allows the user to convert values to another value type. Current mechanism does not allow the user to provide its own conversion functions. To add a new conversion function, an overload of from_to_() must be declared in the namespace mln::convert::over_load. A forward declaration must be added to from_to.hxx in order to make it taken into account by g++ while resolving the overloaded functions. This way, we ensure the fact that g++ is aware of this definition at the very beginning. This method is intrusive and definitely error prone since the forward declarations may not be maintained correctly. -- Ticket URL: <https://trac.lrde.epita.fr/olena/ticket/253> Olena <http://olena.lrde.epita.fr> Olena, a software platform dedicated to image processing.