tests/cxx_callback_datatype/message.proto

syntax = "proto3";

import "nanopb.proto";

option(nanopb_fileopt).include = '<vector>';

message SubMessage {
  sint32 actual_value = 1;
}

message TestMessage {
  // Instead of std::vector<SubMessage> callback handles wrapping/unwrapping of the int.
  repeated SubMessage submessages = 1 [(nanopb).callback_datatype = "std::vector<int>"];
}