Method addVariant

extensions/opc/include/opc.h:114–119

    var_ = var;
  }
  void addVariant(UA_Variant * var) {
    if(var_) {
      UA_Variant_delete(var_);
    }
    var_ = var;
  }

  friend class Client;
  friend std::string nodeValue2String(const NodeData&);