diff --git a/srcs/bonus/.ft_lstdelone.c.swp b/srcs/bonus/.ft_lstdelone.c.swp
deleted file mode 100644
index d9d49e0..0000000
Binary files a/srcs/bonus/.ft_lstdelone.c.swp and /dev/null differ
diff --git a/srcs/bonus/a.out b/srcs/bonus/a.out
index 18d0f88..a1ab014 100755
Binary files a/srcs/bonus/a.out and b/srcs/bonus/a.out differ
diff --git a/srcs/bonus/ft_lstdelone.c b/srcs/bonus/ft_lstdelone.c
index a86635b..44f3088 100644
--- a/srcs/bonus/ft_lstdelone.c
+++ b/srcs/bonus/ft_lstdelone.c
@@ -1,95 +1,108 @@
-	
-	#include <libc.h>
-	
-	typedef struct		s_list
-	{
-		void			*content;
-		struct s_list	*next;
-	}					t_list;
-	
-	void	*ft_memcpy(void *dst, const void *src, size_t n)
-	{
-		size_t	i;
-		char	*ptr;
-		char	*ptr2;
-	
-		ptr = (char *)dst;
-		ptr2 = (char *)src;
-		i = -1;
-		while (++i < n)
-			ptr[i] = ptr2[i];
-		return (dst);
-	}
-	
-	t_list	*ft_lstnew(void *content)
-	{
-		t_list		*lst;
-	
-		if (!(lst = (t_list *)malloc(sizeof(*lst))))
-			return (NULL);
-		if (!content)
-			lst->content = NULL;
-		else
-		{
-			if (!(lst->content = malloc(sizeof(content))))
-				return (NULL);
-			ft_memcpy(lst->content, content, sizeof(content));
-		}
-		lst->next = NULL;
-		return (lst);
-	}
-	
-	void	ft_lstadd_back(t_list **alst, t_list *new)
-	{
-		t_list	*tmp;
-	
-		if (alst)
-		{
-			tmp = *alst;
-			if (!tmp)
-				*alst = new;
-			else
-			{
-				while (tmp->next)
-					tmp = tmp->next;
-				tmp->next = new;
-			}
-			new->next = NULL;
-		}
-	}
-	
-	void	ft_lstdelone(t_list *lst, void (*del)(void *));
-	
-	int	main(void)
-	{
-		char	tresor;
-		char	matos;
-		char	friends;
-		t_list	*toto;
-		t_list	*tmp;
-	
-		tresor = 'a';
-		matos = 'b';
-		friends = 'c';
-		toto = ft_lstnew(&tresor);
-		printf("toto->data          :%c\n",*(char*)(toto->content));
-		tmp = ft_lstnew(&matos);
-		ft_lstadd_back(&toto, tmp);
-		printf("----------------------\n");
-		printf("toto->data          :%c\n",*(char*)(toto->content));
-		printf("toto->nxt->data     :%c\n",*(char*)(toto->next->content));
-		tmp = ft_lstnew(&friends);
-		ft_lstadd_back(&toto, tmp);
-		printf("----------------------\n");
-		printf("toto->data          :%c\n",*(char*)(toto->content));
-		printf("toto->nxt->data     :%c\n",*(char*)(toto->next->content));
-		printf("toto->nxt->nxt->data:%c\n",*(char*)(toto->next->next->content));
-		printf("toto->nxt->nxt->nxt :%s\n",(char*)(toto->next->next->next));
-		return (0);
-	}
-	
+/*
+**	free an element and delete its content with del
+**	next is not free
+*/
 
-//#include "libft.h"
+/*	
+**	#include <libc.h>
+**	
+**	typedef struct		s_list
+**	{
+**		void			*content;
+**		struct s_list	*next;
+**	}					t_list;
+**	
+**	void	*ft_memcpy(void *dst, const void *src, size_t n)
+**	{
+**		size_t	i;
+**		char	*ptr;
+**		char	*ptr2;
+**	
+**		ptr = (char *)dst;
+**		ptr2 = (char *)src;
+**		i = -1;
+**		while (++i < n)
+**			ptr[i] = ptr2[i];
+**		return (dst);
+**	}
+**	
+**	t_list	*ft_lstnew(void *content)
+**	{
+**		t_list		*lst;
+**	
+**		if (!(lst = (t_list *)malloc(sizeof(*lst))))
+**			return (NULL);
+**		if (!content)
+**			lst->content = NULL;
+**		else
+**		{
+**			if (!(lst->content = malloc(sizeof(content))))
+**				return (NULL);
+**			ft_memcpy(lst->content, content, sizeof(content));
+**		}
+**		lst->next = NULL;
+**		return (lst);
+**	}
+**	
+**	void	ft_lstadd_back(t_list **alst, t_list *new)
+**	{
+**		t_list	*tmp;
+**	
+**		if (alst)
+**		{
+**			tmp = *alst;
+**			if (!tmp)
+**				*alst = new;
+**			else
+**			{
+**				while (tmp->next)
+**					tmp = tmp->next;
+**				tmp->next = new;
+**			}
+**			new->next = NULL;
+**		}
+**	}
+**	
+**	void	ft_delete(void *element)
+**	{
+**		*(char*)element = '\0';
+**	}
+**	
+**	void	ft_lstdelone(t_list *lst, void (*del)(void *));
+**	
+**	int	main(void)
+**	{
+**		char	tresor;
+**		char	matos;
+**		char	friends;
+**		t_list	*toto;
+**		t_list	*tmp;
+**		void	(ft_delete)(void*);
+**	
+**		tresor = 'a';
+**		matos = 'b';
+**		friends = 'c';
+**		toto = ft_lstnew(&tresor);
+**		tmp = ft_lstnew(&matos);
+**		ft_lstadd_back(&toto, tmp);
+**		tmp = ft_lstnew(&friends);
+**		ft_lstadd_back(&toto, tmp);
+**		printf("----------------------\n");
+**		printf("toto->data          :%c\n",*(char*)(toto->content));
+**		printf("toto->nxt->data     :%c\n",*(char*)(toto->next->content));
+**		printf("toto->nxt->nxt->data:%c\n",*(char*)(toto->next->next->content));
+**		printf("toto->nxt->nxt->nxt :%s\n",(char*)(toto->next->next->next));
+**		ft_lstdelone(toto->next, ft_delete);
+**		printf("----------------------\n");
+**		printf("toto->data          :%c\n",*(char*)(toto->content));
+**		printf("toto->nxt->data     :%c\n",*(char*)(toto->next->content));
+**		printf("toto->nxt->nxt->data:%c\n",*(char*)(toto->next->next->content));
+**		printf("toto->nxt->nxt->nxt :%s\n",(char*)(toto->next->next->next));
+**		return (0);
+**	}
+*/	
+
+#include "libft.h"
 
 void	ft_lstdelone(t_list *lst, void (*del)(void *))
 {