Last active
April 2, 2021 15:02
-
-
Save ibeauregard/67605af61ffe573dbb31c337bf33cd91 to your computer and use it in GitHub Desktop.
Demonstration of dot notation and encapsulation in C
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* char_map.h */ | |
#ifndef CHAR_MAP_H | |
#define CHAR_MAP_H | |
typedef struct char_map CharMap; | |
struct char_map { | |
char wall; | |
char corridor; | |
char path; | |
char entrance; | |
char exit; | |
void (*print)(CharMap* self); | |
void (*delete)(CharMap* self); | |
}; | |
extern const struct char_map_class { | |
CharMap* (*new)(); | |
} CharMapClass; | |
#endif | |
/* char_map.c */ | |
#include "char_map.h" | |
#include <stdlib.h> | |
#include <stdio.h> | |
static CharMap* new(); | |
const struct char_map_class CharMapClass = { | |
.new = &new | |
}; | |
static void print(CharMap* self); | |
static void delete(CharMap* self); | |
CharMap* new() | |
{ | |
CharMap* self = malloc(sizeof (CharMap)); | |
self->print = &print; | |
self->delete = &delete; | |
return self; | |
} | |
void print(CharMap* self) | |
{ | |
printf("%c%c%c%c%c", | |
self->wall, self->corridor, self->path, self->entrance, self->exit); | |
} | |
void delete(CharMap* self) | |
{ | |
free(self); | |
} | |
/* main.c */ | |
#include "char_map.h" | |
int main() | |
{ | |
CharMap* map = CharMapClass.new(); | |
map->print(map); | |
map->delete(map); | |
return 0; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment