diff --git a/arbre.h b/arbre.h
new file mode 100644
index 0000000..ada30a5
--- /dev/null
+++ b/arbre.h
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#define TAILLE 27
+
+
+
+typedef struct arbre{
+    char val;
+    struct arbre *suite[TAILLE];
+    bool finmot; //1 si fin de mot
+}Arbre;
+
+typedef struct dico {
+    Arbre *alpha[TAILLE];
+}Dico;
+
+
+int calculcase(char c);
+
+bool est_vide(struct arbre *arbre);
+
+bool fin_de_mot(struct arbre *arbre);
+
+void ini_dico(struct dico *pt_dico);
+
+void creation_arbre(Arbre **ppt_arbre,char c);
+    
+void ajout_mot(struct arbre **arbrecourant,char *mot,int i);
+
+void charger_arbre(FILE *fp, struct dico **ppt_dico);
+
+
+void free_arbre(struct arbre *pt_arbre);
+
+void free_dico(struct dico *pt_dico);
+
+void affiche_arbre(struct arbre *arbre);
+
+void affiche_dico(struct dico *dico);
+
+
+
--
libgit2 0.21.2