diff --git a/Makefile b/Makefile
index f1ba6c0..45024af 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@
 #    By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2018/04/07 12:47:06 by tmaze             #+#    #+#              #
-#    Updated: 2018/04/07 23:08:25 by tmaze            ###   ########.fr        #
+#    Updated: 2018/04/08 00:51:46 by tmaze            ###   ########.fr        #
 #                                                                              #
 #******************************************************************************#
 
@@ -17,7 +17,8 @@ CCSTD = -std=c99
 NAME = libft.a
 
 SRCS =	ft_memset.c ft_bzero.c ft_memcpy.c ft_memccpy.c ft_memmove.c ft_memchr.c ft_memcmp.c ft_strlen.c ft_strdup.c ft_strcpy.c ft_strncpy.c ft_strcat.c ft_strncat.c ft_strchr.c ft_strrchr.c ft_strstr.c ft_strnstr.c ft_strcmp.c ft_strncmp.c ft_atoi.c	ft_isalpha.c ft_isdigit.c ft_isalnum.c ft_isascii.c ft_isprint.c ft_toupper.c ft_tolower.c \
-		ft_memalloc.c ft_memdel.c ft_strnew.c ft_strdel.c ft_strclr.c ft_striter.c ft_striteri.c ft_strmap.c ft_strmapi.c ft_strequ.c ft_strnequ.c ft_strsub.c ft_strjoin.c ft_strtrim.c ft_strsplit.c  ft_putchar.c ft_putstr.c ft_putendl.c ft_putchar_fd.c ft_putstr_fd.c
+		ft_memalloc.c ft_memdel.c ft_strnew.c ft_strdel.c ft_strclr.c ft_striter.c ft_striteri.c ft_strmap.c ft_strmapi.c ft_strequ.c ft_strnequ.c ft_strsub.c ft_strjoin.c ft_strtrim.c ft_strsplit.c  ft_putchar.c ft_putstr.c ft_putendl.c ft_putchar_fd.c ft_putstr_fd.c \
+		ft_lstnew.c
 
 OBJS = $(SRCS:.c=.o)
 INCLS = -I.
diff --git a/ft_lstnew.c b/ft_lstnew.c
new file mode 100644
index 0000000..d3a866f
--- /dev/null
+++ b/ft_lstnew.c
@@ -0,0 +1,38 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_lstnew.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2018/04/08 00:35:42 by tmaze             #+#    #+#             */
+/*   Updated: 2018/04/08 00:50:46 by tmaze            ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+t_list	*ft_lstnew(void const *content, size_t content_size)
+{
+	t_list	*ret;
+
+	if ((ret = (t_list*)malloc(sizeof(t_list))) == NULL)
+	{
+		if (!content)
+		{
+			ret->content = NULL;
+			ret->content_size = 0;
+		}
+		else
+		{
+			if ((ret->content = malloc(content_size)) == NULL)
+			{
+				free(ret);
+				return (0);
+			}
+			ret->content_size = content_size;
+		}
+		ret->next = NULL;
+	}
+	return (ret);
+}
diff --git a/libft.h b/libft.h
index 4564bcf..06d7288 100644
--- a/libft.h
+++ b/libft.h
@@ -3,10 +3,10 @@
 /*                                                        :::      ::::::::   */
 /*   libft.h                                            :+:      :+:    :+:   */
 /*                                                    +:+ +:+         +:+     */
-/*   By: tmaze <marvin@42.fr>                       +#+  +:+       +#+        */
+/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2018/04/04 10:40:01 by tmaze             #+#    #+#             */
-/*   Updated: 2018/04/07 22:55:10 by tmaze            ###   ########.fr       */
+/*   Created: 2018/04/08 00:12:36 by tmaze             #+#    #+#             */
+/*   Updated: 2018/04/08 00:33:10 by tmaze            ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,6 +17,17 @@
 # include <stdlib.h>
 # include <unistd.h>
 
+/*
+** définition type t_list
+*/
+
+typedef struct		s_list
+{
+	void			*content;
+	size_t			content_size;
+	struct s_list	*next;
+}					t_list;
+
 /*
 ** fonctions obligatoires
 */
@@ -80,4 +91,15 @@ void	ft_putstr_fd(char const *s, int fd);
 void	ft_putendl_fd(char const *s, int fd);
 void	ft_putnbr_fd(int n, int fd);
 
+/*
+** fonctions bonus
+*/
+
+t_list	*ft_lstnew(void const *content, size_t content_size);
+void	ft_lstdelone(t_list **alst, void (*del)(void *, size_t));
+void	ft_lstdel(t_list **alst, void (*del)(void *, size_t));
+void	ft_lstadd(t_list **alst, t_list *new);
+void	ft_lstiter(t_list **alst, void (*f)(t_list *elem));
+t_list	*ft_lstmap(t_list *lst, t_list *(*f)(t_list *elem));
+
 #endif