#include <stdio.h>

Include dependency graph for C Implimentation.c:

Classes
struct	Animal
	Base "class" simulated as a struct holding a speak function pointer. More...
struct	Dog
	"Subclass" of Animal that barks. More...
struct	Cat
	"Subclass" of Animal that meows. More...
struct	AbstractAnimal
	Abstract base "class" combining shared state and an abstract speak function pointer. More...
struct	DogWithDefault
	Concrete AbstractAnimal "subclass" that implements speak(). More...
struct	ISpeaker
	Interface contract simulated as a struct holding only a function pointer. More...
struct	InterfaceDog
	ISpeaker implementation that barks. More...
struct	InterfaceCat
	ISpeaker implementation that meows. More...
struct	PureBreedDog
	The sole concrete "speaker" type; no vtable is needed. More...

Typedefs
typedef struct Animal	Animal
	Base "class" simulated as a struct holding a speak function pointer.
typedef struct AbstractAnimal	AbstractAnimal
	Abstract base "class" combining shared state and an abstract speak function pointer.
typedef struct ISpeaker	ISpeaker
	Interface contract simulated as a struct holding only a function pointer.

Functions
void	dogSpeak (Animal *self)
	speak() implementation for Dog.
void	catSpeak (Animal *self)
	speak() implementation for Cat.
void	Dog_init (Dog *d)
	Initializes a Dog instance, wiring its vtable pointer to dogSpeak.
void	Cat_init (Cat *c)
	Initializes a Cat instance, wiring its vtable pointer to catSpeak.
void	makeSpeak (Animal *a)
	Dynamic Dispatch via manual function-pointer vtable.
void	Animal_sleep (AbstractAnimal *aa)
	A concrete default function shared by all "subclasses".
void	dogWithDefaultSpeak (AbstractAnimal *self)
	speak() implementation for DogWithDefault.
void	DogWithDefault_init (DogWithDefault *d)
	Initializes a DogWithDefault instance.
void	makeSleep (AbstractAnimal *aa)
	Dynamic Dispatch using abstract parent pointer.
void	interfaceDogSpeak (ISpeaker *self)
	speak() implementation for InterfaceDog.
void	interfaceCatSpeak (ISpeaker *self)
	speak() implementation for InterfaceCat.
void	InterfaceDog_init (InterfaceDog *d)
	Initializes an InterfaceDog instance.
void	InterfaceCat_init (InterfaceCat *c)
	Initializes an InterfaceCat instance.
void	makeSpeakInterface (ISpeaker *s)
	Contractual Dispatch via manual function-pointer lookup.
void	PureBreedDog_speak (PureBreedDog *self)
	Direct, non-polymorphic speak implementation for PureBreedDog.
void	directSpeak (PureBreedDog *explicitDog)
	Scenario A: Monomorphic target - direct call, no vtable indirection.
int	main ()
	Entry point exercising all four polymorphism scenarios.

Typedef Documentation

◆ AbstractAnimal

typedef struct AbstractAnimal AbstractAnimal

Abstract base "class" combining shared state and an abstract speak function pointer.

◆ Animal

typedef struct Animal Animal

Base "class" simulated as a struct holding a speak function pointer.

◆ ISpeaker

typedef struct ISpeaker ISpeaker

Interface contract simulated as a struct holding only a function pointer.

Function Documentation

◆ Animal_sleep()

void Animal_sleep ( AbstractAnimal * aa )

A concrete default function shared by all "subclasses".

Parameters

aa	Pointer to the AbstractAnimal base.

Definition at line 84 of file C Implimentation.c.

◆ Cat_init()

void Cat_init ( Cat * c )

Initializes a Cat instance, wiring its vtable pointer to catSpeak.

Parameters

c	Pointer to the Cat instance to initialize.

Definition at line 55 of file C Implimentation.c.

◆ catSpeak()

void catSpeak ( Animal * self )

speak() implementation for Cat.

Parameters

self	Pointer to the Animal base within a Cat instance.

Definition at line 35 of file C Implimentation.c.

◆ directSpeak()

void directSpeak ( PureBreedDog * explicitDog )

Scenario A: Monomorphic target - direct call, no vtable indirection.

Parameters

explicitDog Pointer to the concrete PureBreedDog instance.

Definition at line 196 of file C Implimentation.c.

◆ Dog_init()

void Dog_init ( Dog * d )

Initializes a Dog instance, wiring its vtable pointer to dogSpeak.

Parameters

d	Pointer to the Dog instance to initialize.

Definition at line 49 of file C Implimentation.c.

◆ dogSpeak()

void dogSpeak ( Animal * self )

speak() implementation for Dog.

Parameters

self	Pointer to the Animal base within a Dog instance.

Definition at line 26 of file C Implimentation.c.

◆ DogWithDefault_init()

void DogWithDefault_init ( DogWithDefault * d )

Initializes a DogWithDefault instance.

Parameters

d	Pointer to the DogWithDefault instance to initialize.

Definition at line 105 of file C Implimentation.c.

◆ dogWithDefaultSpeak()

void dogWithDefaultSpeak ( AbstractAnimal * self )

speak() implementation for DogWithDefault.

Parameters

self	Pointer to the AbstractAnimal base within a DogWithDefault instance.

Definition at line 93 of file C Implimentation.c.

◆ InterfaceCat_init()

void InterfaceCat_init ( InterfaceCat * c )

Initializes an InterfaceCat instance.

Parameters

c	Pointer to the InterfaceCat instance to initialize.

Definition at line 164 of file C Implimentation.c.

◆ interfaceCatSpeak()

void interfaceCatSpeak ( ISpeaker * self )

speak() implementation for InterfaceCat.

Parameters

self	Pointer to the ISpeaker base within an InterfaceCat instance.

Definition at line 144 of file C Implimentation.c.

◆ InterfaceDog_init()

void InterfaceDog_init ( InterfaceDog * d )

Initializes an InterfaceDog instance.

Parameters

d	Pointer to the InterfaceDog instance to initialize.

Definition at line 158 of file C Implimentation.c.

◆ interfaceDogSpeak()

void interfaceDogSpeak ( ISpeaker * self )

speak() implementation for InterfaceDog.

Parameters

self	Pointer to the ISpeaker base within an InterfaceDog instance.

Definition at line 135 of file C Implimentation.c.

◆ main()

int main ( )

Entry point exercising all four polymorphism scenarios.

Returns: 0 on successful completion.

Definition at line 204 of file C Implimentation.c.

◆ makeSleep()

void makeSleep ( AbstractAnimal * aa )

Dynamic Dispatch using abstract parent pointer.

Parameters

aa	Pointer to the AbstractAnimal base; sleep() is a shared, non-overridden default function.

Definition at line 115 of file C Implimentation.c.

◆ makeSpeak()

void makeSpeak ( Animal * a )

Dynamic Dispatch via manual function-pointer vtable.

Parameters

a	Pointer to the Animal base whose speak function pointer is invoked.

Definition at line 61 of file C Implimentation.c.

◆ makeSpeakInterface()

void makeSpeakInterface ( ISpeaker * s )

Contractual Dispatch via manual function-pointer lookup.

Parameters

s	Pointer to the ISpeaker contract whose speak function pointer is invoked.

Definition at line 170 of file C Implimentation.c.

◆ PureBreedDog_speak()

void PureBreedDog_speak ( PureBreedDog * self )

Direct, non-polymorphic speak implementation for PureBreedDog.

Parameters

self	Pointer to the PureBreedDog instance.

Definition at line 187 of file C Implimentation.c.

Classes

Typedefs

Functions

Typedef Documentation

◆ AbstractAnimal

◆ Animal

◆ ISpeaker

Function Documentation

◆ Animal_sleep()

◆ Cat_init()

◆ catSpeak()

◆ directSpeak()

◆ Dog_init()

◆ dogSpeak()

◆ DogWithDefault_init()

◆ dogWithDefaultSpeak()

◆ InterfaceCat_init()

◆ interfaceCatSpeak()

◆ InterfaceDog_init()

◆ interfaceDogSpeak()

◆ main()

◆ makeSleep()

◆ makeSpeak()

◆ makeSpeakInterface()

◆ PureBreedDog_speak()