Hello, boost users! This question is adressed rather to wave developers. Why doesn't the wave expose possibility to query or iterate over the map of macro definitions. This would be very useful for manipulation on the context. Say, one could serialize macro definitions to the disk, then there would it be possible to continue preprocessign the file without walking over unchanged included headers. Currently, I myself collect macro definitions through the ContextPolicy, but this doubles memory consumption. Thank you! -- Anatoli Sakhnik.