definition des methodes dans list.c

src/list.c

@@ -17,26 +17,73 @@ int list_is_empty(list_t l){
 	return l==NULL;
 }
 
-/*list_t list_push(list_t l, void* x){
+list_t list_push(list_t l, void* x){
+	
+	list_t N = malloc(sizeof(struct cell_t));
+	N->val = x;
+	N-> next = l;
+	if (list_is_empty(l))		
+		N->id = 1;
+	else
+		N->id = l->id + 1;
+		
+	return N ;
+	
 }
 
 list_t list_tail(list_t l){
+	
+	return l->next;
 }
 
 void* list_pop(list_t* l){ 
+	
+	list_t tmp= (*l)->next;
+	void * v = (*l)->val;
+	free(*l);
+	*l = tmp;
+	return v;
+	
 }
 
 void* list_top(list_t l){
+
+	return l->val;
+	
 }
 
-void list_destroy(list_t l, void (*free)(void*)){
+void list_destroy(list_t l, void (*free_void)(void*)){
+	while(!list_is_empty(l))
+		free_void(list_pop(&l));
 }
 
 // return the found element or NULL
 void* list_in(list_t l, void* x, int (*eq)(void*, void*)){
+	
+	if(list_is_empty(l))
+		return NULL;
+	
+	while( ! list_is_empty(l)){
+		
+		
+		if((eq) (l->val ,x))
+			return l->val;
+			
+		else
+			l=l->next;
+		
+	}
+	return NULL;
 }
 
 unsigned long int list_len(list_t l){
+	
+	unsigned long int taille;
+	if (list_is_empty(l))
+		return 0;
+	else
+		return l->id;
+	
 }
 
-*/
+