id summary reporter owner description type status milestone component version severity resolution keywords cc 4130 type missmatch in modify_key(iterator, Modifier, Rollback) vziegler@… Joaquín M López Muñoz "In ordered_index.hpp, inside function modify_key(iterator, Modifier, Rollback), the first template argument to the second instance of modify_key_adaptor has to be Rollback instead of Modifier (see attached patch). Regards, Valentin" Bugs closed Boost 1.44.0 multi_index Boost 1.42.0 Problem fixed