cppcheck is seeing issues

[schwehr]

Lots of troubles with

• initialization
• not using override
• members in parent and child with the same name - spare and status

cppcheck --enable=all --std=c++17 -I. ais14.cpp 
Checking ais14.cpp ...
ais.h:445:3: warning: Member variable 'AisMsg::message_id' is not initialized in the constructor. [uninitMemberVar]
  AisMsg() : status(AIS_UNINITIALIZED), num_chars(0), num_bits(0), bits() {}
  ^
ais.h:445:3: warning: Member variable 'AisMsg::repeat_indicator' is not initialized in the constructor. [uninitMemberVar]
  AisMsg() : status(AIS_UNINITIALIZED), num_chars(0), num_bits(0), bits() {}
  ^
ais.h:445:3: warning: Member variable 'AisMsg::mmsi' is not initialized in the constructor. [uninitMemberVar]
  AisMsg() : status(AIS_UNINITIALIZED), num_chars(0), num_bits(0), bits() {}
  ^
ais.h:677:7: warning: The class 'Ais6_1_5' defines member variable with name 'spare' also defined in its parent class 'Ais6'. [duplInheritedMember]
  int spare;
      ^
ais.h:576:7: note: Parent variable 'Ais6::spare'
  int spare;
      ^
ais.h:677:7: note: Derived variable 'Ais6_1_5::spare'
  int spare;
      ^
ais.h:1018:7: warning: The class 'Ais8_1_19' defines member variable with name 'status' also defined in its parent class 'AisMsg'. [duplInheritedMember]
  int status;
      ^
ais.h:440:14: note: Parent variable 'AisMsg::status'
  AIS_STATUS status;  // AIS_OK or error code
             ^
ais.h:1018:7: note: Derived variable 'Ais8_1_19::status'
  int status;
      ^
ais.h:1150:27: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_CIRCLE;}
                          ^
ais.h:1131:35: note: Virtual function in base class
  virtual Ais8_1_22_AreaShapeEnum getType() const = 0;
                                  ^
ais.h:1150:27: note: Function in derived class
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_CIRCLE;}
                          ^
ais.h:1164:27: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_RECT;}
                          ^
ais.h:1131:35: note: Virtual function in base class
  virtual Ais8_1_22_AreaShapeEnum getType() const = 0;
                                  ^
ais.h:1164:27: note: Function in derived class
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_RECT;}
                          ^
ais.h:1178:27: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_SECTOR;}
                          ^
ais.h:1131:35: note: Virtual function in base class
  virtual Ais8_1_22_AreaShapeEnum getType() const = 0;
                                  ^
ais.h:1178:27: note: Function in derived class
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_SECTOR;}
                          ^
ais.h:1195:27: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_POLYLINE;}
                          ^
ais.h:1131:35: note: Virtual function in base class
  virtual Ais8_1_22_AreaShapeEnum getType() const = 0;
                                  ^
ais.h:1195:27: note: Function in derived class
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_POLYLINE;}
                          ^
ais.h:1211:27: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_POLYGON;}
                          ^
ais.h:1131:35: note: Virtual function in base class
  virtual Ais8_1_22_AreaShapeEnum getType() const = 0;
                                  ^
ais.h:1211:27: note: Function in derived class
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_POLYGON;}
                          ^
ais.h:1222:27: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_TEXT;}
                          ^
ais.h:1131:35: note: Virtual function in base class
  virtual Ais8_1_22_AreaShapeEnum getType() const = 0;
                                  ^
ais.h:1222:27: note: Function in derived class
  Ais8_1_22_AreaShapeEnum getType() const {return AIS8_1_22_SHAPE_TEXT;}
                          ^
ais.h:1323:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const { return AIS8_1_26_SENSOR_LOCATION; }
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1323:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const { return AIS8_1_26_SENSOR_LOCATION; }
                       ^
ais.h:1333:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_STATION;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1333:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_STATION;}
                       ^
ais.h:1354:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_WIND;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1354:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_WIND;}
                       ^
ais.h:1374:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_WATER_LEVEL;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1374:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_WATER_LEVEL;}
                       ^
ais.h:1392:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_CURR_2D;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1392:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_CURR_2D;}
                       ^
ais.h:1411:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_CURR_3D;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1411:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_CURR_3D;}
                       ^
ais.h:1430:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_HORZ_FLOW;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1430:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_HORZ_FLOW;}
                       ^
ais.h:1451:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_SEA_STATE;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1451:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_SEA_STATE;}
                       ^
ais.h:1466:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_SALINITY;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1466:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_SALINITY;}
                       ^
ais.h:1485:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_WX;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1485:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_WX;}
                       ^
ais.h:1501:24: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_AIR_DRAUGHT;}
                       ^
ais.h:1305:32: note: Virtual function in base class
  virtual Ais8_1_26_SensorEnum getType() const = 0;
                               ^
ais.h:1501:24: note: Function in derived class
  Ais8_1_26_SensorEnum getType() const {return AIS8_1_26_SENSOR_AIR_DRAUGHT;}
                       ^
ais.h:1774:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_CIRCLE;}
                            ^
ais.h:1756:39: note: Virtual function in base class
    virtual Ais8_366_22_AreaShapeEnum getType() = 0;
                                      ^
ais.h:1774:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_CIRCLE;}
                            ^
ais.h:1788:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_RECT;}
                            ^
ais.h:1756:39: note: Virtual function in base class
    virtual Ais8_366_22_AreaShapeEnum getType() = 0;
                                      ^
ais.h:1788:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_RECT;}
                            ^
ais.h:1802:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_SECTOR;}
                            ^
ais.h:1756:39: note: Virtual function in base class
    virtual Ais8_366_22_AreaShapeEnum getType() = 0;
                                      ^
ais.h:1802:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_SECTOR;}
                            ^
ais.h:1819:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_POLYLINE;}
                            ^
ais.h:1756:39: note: Virtual function in base class
    virtual Ais8_366_22_AreaShapeEnum getType() = 0;
                                      ^
ais.h:1819:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_POLYLINE;}
                            ^
ais.h:1834:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_POLYGON;}
                            ^
ais.h:1756:39: note: Virtual function in base class
    virtual Ais8_366_22_AreaShapeEnum getType() = 0;
                                      ^
ais.h:1834:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_POLYGON;}
                            ^
ais.h:1844:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_TEXT;}
                            ^
ais.h:1756:39: note: Virtual function in base class
    virtual Ais8_366_22_AreaShapeEnum getType() = 0;
                                      ^
ais.h:1844:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() {return AIS8_366_22_SHAPE_TEXT;}
                            ^
ais.h:1898:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() const {return AIS8_366_22_SHAPE_CIRCLE;}
                            ^
ais.h:1881:37: note: Virtual function in base class
  virtual Ais8_366_22_AreaShapeEnum getType() const = 0;
                                    ^
ais.h:1898:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() const {return AIS8_366_22_SHAPE_CIRCLE;}
                            ^
ais.h:1912:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() const {return AIS8_366_22_SHAPE_RECT;}
                            ^
ais.h:1881:37: note: Virtual function in base class
  virtual Ais8_366_22_AreaShapeEnum getType() const = 0;
                                    ^
ais.h:1912:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() const {return AIS8_366_22_SHAPE_RECT;}
                            ^
ais.h:1926:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() const {return AIS8_366_22_SHAPE_SECTOR;}
                            ^
ais.h:1881:37: note: Virtual function in base class
  virtual Ais8_366_22_AreaShapeEnum getType() const = 0;
                                    ^
ais.h:1926:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() const {return AIS8_366_22_SHAPE_SECTOR;}
                            ^
ais.h:1944:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() const {return shape;}
                            ^
ais.h:1881:37: note: Virtual function in base class
  virtual Ais8_366_22_AreaShapeEnum getType() const = 0;
                                    ^
ais.h:1944:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() const {return shape;}
                            ^
ais.h:1954:29: style: The function 'getType' overrides a function in a base class but is not marked with a 'override' specifier. [missingOverride]
  Ais8_366_22_AreaShapeEnum getType() const {return AIS8_366_22_SHAPE_TEXT;}
                            ^
ais.h:1881:37: note: Virtual function in base class
  virtual Ais8_366_22_AreaShapeEnum getType() const = 0;
                                    ^
ais.h:1954:29: note: Function in derived class
  Ais8_366_22_AreaShapeEnum getType() const {return AIS8_366_22_SHAPE_TEXT;}