hello: we defined two object in field.proto message Record{ optional int id = 1; } message RecordSet{ repeated Record record= 1; }
so when we define a Record pointer,we do like this: RecordSet recordsetA,recordsetB; Recrod *pRecordA = recordsetA.add_record(); pRecordA->set_id(111); actually ,recordsetB has the same member as fieldsetA,we can only do like this: Record *pRecordB = recordsetB.add_record(); pRecordB->CopyFrom(*pRecordA); we found that it cost much time to copy. if there is this method,we can solve this problem: recordasetB.add_record(pRecordA); in this way ,we don't need to copy。 i've read topic in this forum, add_record() this api just for thread safe and don't worry about the pRecordA being accidently changed。 so hope for your answer. thans!! -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.