id summary reporter owner description type status milestone component version severity resolution keywords cc 6036 incorrect rethrow in member function void mapped_file_impl::map_file(param_type& p) Valentin Batz Daniel James "The rethrow with boost::throw_exception(e) involves 'object slicing' by making a copy of the base-class object. The original exception-information will be lost. To re-throw the current exception you have to throw without any argument." Bugs closed Boost 1.55.0 iostreams Boost 1.47.0 Problem fixed