Reuse ft_isdigit and ft_strchr from libft

main.c

@@ -6,7 +6,7 @@
 /*   By: gbaconni@student.42lausanne.ch             +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/04/13 06:58:46 by gbaconni          #+#    #+#             */
-/*   Updated: 2022/04/25 07:08:49 by gbaconni         ###   lausanne.ch       */
+/*   Updated: 2022/04/29 08:23:07 by gbaconni         ###   lausanne.ch       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -53,6 +53,8 @@ int	_printf(int (*f)(const char *restrict, ...), \
 	char	c;
 
 	ret = 0;
+	if (arg == NULL)
+		return (ret);
 	c = *(format + 1 + ft_skipchars(format + 1, "0123456789# +"));
 	if (c == 'c')
 		ret = (*f)(format, *arg);