diff --git a/libft.pdf b/libft.pdf
index a25d360..c6489aa 100644
Binary files a/libft.pdf and b/libft.pdf differ
diff --git a/srcs/part1/ft_memchr.c b/srcs/part1/ft_memchr.c
index ab61ff4..6a1c359 100644
--- a/srcs/part1/ft_memchr.c
+++ b/srcs/part1/ft_memchr.c
@@ -6,7 +6,7 @@
 /*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/11/25 13:55:51 by hulamy            #+#    #+#             */
-/*   Updated: 2019/11/25 13:55:54 by hulamy           ###   ########.fr       */
+/*   Updated: 2019/12/12 21:50:32 by hulamy           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -14,6 +14,27 @@
 ** locate character in string and return its position
 */
 
+/*
+**	#include <libc.h>
+**
+**	void	*ft_memchr(const void *s, int c, size_t n);
+**
+**	int		main(void)
+**	{
+**		const char	*str;
+**
+**		char *pouet = "z";
+**		char *lolzer = (char *)&pouet[2];
+**		lolzer = "aaaaaaaaaa";
+**		str = ft_memchr(pouet, 'a', 50);
+**		if (!str)
+**			printf("NULL");
+**		else
+**			printf("%s\n", str);
+**		return (0);
+**	}
+*/
+
 #include "libft.h"
 
 void	*ft_memchr(const void *s, int c, size_t n)
diff --git a/srcs/part2/ft_split.c b/srcs/part2/ft_split.c
index 40d1c25..4a27b9a 100644
--- a/srcs/part2/ft_split.c
+++ b/srcs/part2/ft_split.c
@@ -1,3 +1,15 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_split.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/12/12 22:41:54 by hulamy            #+#    #+#             */
+/*   Updated: 2019/12/13 01:35:15 by hulamy           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
 /*
 ** return an array of string with each word found in str, with c as separator
 */
@@ -47,16 +59,16 @@
 **		char	c;
 **
 **		i = -1;
-**		s = "svh ile ifh oiuo";
+**		s = NULL;
 **		c = ' ';
 **		str = ft_split(s, c);
-**		if (str)
-**		{
+**		//if (str)
+**		//{
 **			printf("s    : '%s'\n", s);
 **			printf("*str : '%p'\n", str[0]);
 **			while (str[++i])
 **				printf("str[%i] : '%s'\n", i, str[i]);
-**		}
+**		//}
 **		return (0);
 **	}
 */
@@ -88,15 +100,25 @@ void		*ft_free(char **array, int w)
 	return (NULL);
 }
 
+char		**empty_s(char **empty)
+{
+	if (!(empty = (char **)malloc(sizeof(char *) * 1)))
+		return (NULL);
+	empty[0] = NULL;
+	return (empty);
+}
+
 char		**ft_split(char const *s, char c)
 {
 	char	**array;
 	int		w;
 	int		len;
 
-	w = 0;
-	if (!s || !(array = (char **)malloc(sizeof(char *) * 1000 * (count(s, c) + 1))))
+	if (!s)
+		return (empty_s(NULL));
+	if (!(array = (char **)malloc(sizeof(char *) * (count(s, c) + 1))))
 		return (NULL);
+	w = 0;
 	while (*s != '\0')
 	{
 		len = 0;
diff --git a/srcs/part2/main.c b/srcs/part2/main.c
index a30a8db..8f48030 100644
--- a/srcs/part2/main.c
+++ b/srcs/part2/main.c
@@ -51,6 +51,17 @@ void	print_ft_strtrim(char const *s, char const *set)
 	printf("strtrim: [%s] [%s] -> '%s'\n", s, set, ft_strtrim(s, set));
 }
 
+void	print_ft_putnbr_fd(int n, int fd)
+{
+	write(1, "putnbr : [", 10);
+	ft_putnbr_fd(n, 1);
+	write(1, "] [", 3);
+	ft_putnbr_fd(fd, 1);
+	write(1, "] -> '", 6);
+	ft_putnbr_fd(n, fd);
+	write(1, "'\n", 2);
+}
+
 int main()
 {
 	char	touppercase(unsigned int, char);
@@ -61,12 +72,15 @@ int main()
 	print_ft_itoa(1);
 	print_ft_itoa(-1218927987);
 	print_ft_itoa(128979827);
+	print_ft_itoa(2147483647);
+	print_ft_itoa(-2147483648);
+	print_ft_itoa('t');
 
 	printf("\n");
 
 	print_ft_split(" dfs zfe f ez f fez  ", ' ');
-	print_ft_split(NULL, ' ');
 	print_ft_split(NULL, 0);
+	print_ft_split(NULL, ' ');
 	print_ft_split("", 0);
 	print_ft_split("vzevzev fze", 0);
 	print_ft_split(" ", 0);
@@ -86,6 +100,7 @@ int main()
 	print_ft_strjoin(NULL, "fsdf");
 	print_ft_strjoin("", NULL);
 	print_ft_strjoin("sdffez", NULL);
+	print_ft_strjoin("           ", "          ");
 
 	printf("\n");
 
@@ -115,7 +130,8 @@ int main()
 
 	printf("\n");
 
-	print_ft_strtrim("   strtrim ", "m ");
+	print_ft_strtrim("   stmr trim ", "m ");
+	print_ft_strtrim("                 ", " ");
 	print_ft_strtrim("", "");
 	print_ft_strtrim(NULL, "");
 	print_ft_strtrim("", NULL);
@@ -123,5 +139,19 @@ int main()
 	print_ft_strtrim("efzfe fzef", "");
 	print_ft_strtrim("efzfzelelijz", " ");
 	print_ft_strtrim("     e f zfzelelijz   ", " ");
+	print_ft_strtrim("cccccccccccccccccccc", "c");
+
+	printf("\n");
+
+	print_ft_putnbr_fd(52, 1);
+	print_ft_putnbr_fd(2147483647, 1);
+	print_ft_putnbr_fd(-2147483648, 1);
+	print_ft_putnbr_fd(0, 1);
+	print_ft_putnbr_fd(-1, 1);
+	print_ft_putnbr_fd(239847, 1);
+	print_ft_putnbr_fd(34625725, 1);
+	print_ft_putnbr_fd(-4564562, 1);
+	print_ft_putnbr_fd(456, 1);
+	print_ft_putnbr_fd(-624724536, 1);
 	return 0;
 }