#ifndef PILE_H_
#define PILE_H_

typedef struct noeud noeud;

struct noeud {
  char cle;
  noeud *suivant;
};

struct pile {
  noeud *debut;
  noeud *fin;
};

typedef struct pile pile;

pile * creerPile(void);
int pileVide(pile *);
void empiler(char, pile *);
char depiler(pile *); // clé du noeud supprimé
void libererPile(pile *);
void afficher(pile *); // sous la forme debut>L>I>fin

#endif /* PILE_H_ */