3 files changed, 61 insertions, 0 deletions
diff --git a/C/OOP/include/animal_p.h b/C/OOP/include/animal_p.h
new file mode 100644
index 0000000..e09aa7c
--- /dev/null
+++ b/C/OOP/include/animal_p.h
@@ -0,0 +1,23 @@
+/* Animal class public interface */
+
+#ifndef ANIMAL_P_H
+#define ANIMAL_P_H
+
+/* Forward declaration */
+struct animal;
+
+/* Alloc new object */
+struct animal* animal_new(void);
+
+/* Constructor - make_sound may be NULL*/
+void animal_ctor(struct animal*, void (*make_sound)(void));
+
+/* Destructor */
+void animal_dtor(struct animal*);
+
+/* Behavior */
+void animal_get_name(struct animal*, char*);
+void animal_set_name(struct animal*, const char*);
+void animal_sound(void *);
+
+#endif /* ANIMAL_P_H */
diff --git a/C/OOP/include/animal_priv.h b/C/OOP/include/animal_priv.h
new file mode 100644
index 0000000..78a83c1
--- /dev/null
+++ b/C/OOP/include/animal_priv.h
@@ -0,0 +1,19 @@
+/* Animal class private definition */
+
+#ifndef ANIMAL_PRIV_H
+#define ANIMAL_PRIV_H
+
+/*
+ * We use a "private" definition as a way to encapsulate it, hiding
+ * it from the users.
+ *
+ * Access to its private definition is only allowed to its sub-classes.
+ *
+ * We could enforce it by moving here the allocator and constructors
+ */
+struct animal {
+	char *name;
+	void (*make_sound) (void);
+};
+
+#endif /* ANIMAL_PRIV_H */
diff --git a/C/OOP/include/cat_p.h b/C/OOP/include/cat_p.h
new file mode 100644
index 0000000..82bcfb1
--- /dev/null
+++ b/C/OOP/include/cat_p.h
@@ -0,0 +1,19 @@
+/* Cat class public interface */
+
+#ifndef CAT_P_H
+#define CAT_P_H
+
+struct cat;
+
+/* Allocator */
+struct cat *cat_new(void);
+
+/* Constructor */
+void cat_ctor(struct cat *);
+
+/* Destructor */
+void cat_dtor(struct cat *);
+
+/* Behavior functions inherited from Animal class */
+
+#endif /* CAT_P_H */