#include "rosidl_runtime_c/visibility_control.h" #include "rosidl_runtime_c/message_type_support_struct.h" #include "rosidl_runtime_c/service_type_support_struct.h" # ...

// Struct for a sequence of tutorial_interfaces__srv__AddThreeInts_Response. typedef struct tutorial_interfaces__srv__AddThreeInts_Response__Sequence tutorial ...

An interface is implicitly abstract. You do not need to use the abstract keyword when declaring an interface. Each method in an interface is also implicitly abstract, so the abstract keyword is not ...