Hi I have done now some research: singular seem to be fields, that have no addition field rules (like optional, repeated, map). There is no presence indication.
BUT: The docu says: "a well-formed message can have zero or one of this field (but not more than one)" What does that mean? Are this wrapper messages with 1 field meant? https://github.com/protocolbuffers/protobuf/blob/main/src/google/protobuf/wrappers.proto Thanks a lot Michael -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to protobuf+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/protobuf/7743f999-de53-4861-b82b-3779a400e900n%40googlegroups.com.
