There are two things I need for a project I'm currently doing. I'm curious if anyone thinks this could be added to the package boost.any, either in the class boost::any or as a separate class, as well as whether it would be of use to anyone else. :) 1. Implicit conversions to/from pointers and references. 2. Support for user-defined conversion hooks when using any_cast. These would be defined in terms of the contained type, not the converted-to type. Both are possible (I've already done it), but will have a runtime performance impact: * Two additional [inline] function calls and two comparisons per conversion, even if the types are the same. * Additional memory overhead to store information about the type (about sizeof(pointer)*6 per instance of boost::any). * Storage of user-defined conversions (in function pointers or function objects). Comments appreciated, Peregrine Falcon