1 /**

     2  * \file manual.c

     3  */

     4 

     5 typedef struct Object Object;   //!< Object type

     6 typedef struct Vehicle Vehicle; //!< Vehicle type

     7 typedef struct Car Car;         //!< Car type

     8 typedef struct Truck Truck;     //!< Truck type

     9 

    10 /*!

    11  * Base object class.

    12  */

    13 struct Object

    14 {

    15   int ref;    //!< \private Reference count.

    16 };

    17 

    18 

    19 /*!

    20  * Increments object reference count by one.

    21  * \public \memberof Object

    22  */

    23 static Object * objRef(Object *obj);

    24 

    25 

    26 /*!

    27  * Decrements object reference count by one.

    28  * \public \memberof Object

    29  */

    30 static Object * objUnref(Object *obj);

    31 

    32 

    33 /*!

    34  * Vehicle class.

    35  * \extends Object

    36  */

    37 struct Vehicle

    38 {

    39   Object base;    //!< \protected Base class.

    40 };

    41 

    42 

    43 /*!

    44  * Starts the vehicle.

    45  * \public \memberof Vehicle

    46  */

    47 void vehicleStart(Vehicle *obj);

    48 

    49 

    50 /*!

    51  * Stops the vehicle.

    52  * \public \memberof Vehicle

    53  */

    54 void vehicleStop(Vehicle *obj);

    55 

    56 

    57 /*!

    58  * Car class.

    59  * \extends Vehicle

    60  */

    61 struct Car

    62 {

    63   Vehicle base;    //!< \protected Base class.

    64 };

    65 

    66 

    67 /*!

    68  * Truck class.

    69  * \extends Vehicle

    70  */

    71 struct Truck

    72 {

    73   Vehicle base;    //!< \protected Base class.

    74 };

    75 

    76 

    77 /*!

    78  * Main function.

    79  *

    80  * Ref vehicleStart(), objRef(), objUnref().

    81  */

    82 int main(void)

    83 {

    84   Car c;

    85   vehicleStart((Vehicle*) &c);

    86 }

    87