diff --git a/ft_printf.c b/ft_printf.c
index ed2733a..f03ef69 100644
--- a/ft_printf.c
+++ b/ft_printf.c
@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/17 16:48:37 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/20 16:09:16 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/22 13:01:29 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -16,12 +16,14 @@ int	ft_putaddr(void *ptr)
 {
 	int	r;
 
+	if (ptr == NULL)
+		return (write(1, "(nil)", 5));
 	write(1, "0x", 2);
 	r = ft_putnbrbase((long unsigned int)ptr, "0123456789abcdef");
 	return (2 + r);
 }
 
-int	ft_putnbrulong(unsigned long n)
+int	ft_putnbrulong(unsigned int n)
 {
 	int	len;
 
@@ -46,17 +48,17 @@ int	ft_printconversion(char conversion, va_list args)
 	else if (conversion == 's')
 		count = ft_putstr(va_arg(args, char *));
 	else if (conversion == 'c')
-		count = ft_putchar(va_arg(args, char *)[0]);
+		count = ft_putchar(va_arg(args, int));
 	else if (conversion == 'i' || conversion == 'd')
 		count = ft_putnbr(va_arg(args, int));
 	else if (conversion == 'u')
-		count = ft_putnbrulong(va_arg(args, unsigned long));
+		count = ft_putnbrulong(va_arg(args, unsigned int));
 	else if (conversion == 'p')
 		count = ft_putaddr(va_arg(args, void *));
 	else if (conversion == 'x')
-		count = ft_putnbrbase(va_arg(args, unsigned int), "0123456789abcdef");
+		count = ft_putnbrbase(va_arg(args, unsigned long), "0123456789abcdef");
 	else if (conversion == 'X')
-		count = ft_putnbrbase(va_arg(args, unsigned int), "0123456789ABCDEF");
+		count = ft_putnbrbase(va_arg(args, unsigned long), "0123456789ABCDEF");
 	return (count);
 }
 
diff --git a/ft_printf.h b/ft_printf.h
index ff61971..f21ff19 100644
--- a/ft_printf.h
+++ b/ft_printf.h
@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/17 16:50:36 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/20 15:52:59 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/22 11:24:27 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -19,11 +19,11 @@
 
 int		ft_printf(const char *format, ...);
 int		ft_printconversion(char conversion, va_list args);
-int		ft_putnbrulong(unsigned long n);
+int		ft_putnbrulong(unsigned int n);
 int		ft_putaddr(void *ptr);
 
 int		ft_putstr(char *s);
-int		ft_putnbrbase(int n, char *base);
+int		ft_putnbrbase(unsigned long int n, char *base);
 int		ft_putchar(char c);
 int		ft_putnbr(int n);
 size_t	ft_strlen(const char *s);
diff --git a/ft_printf.o b/ft_printf.o
new file mode 100644
index 0000000..5b996fb
Binary files /dev/null and b/ft_printf.o differ
diff --git a/ft_putchar.c b/ft_putchar.c
index 5921424..7436489 100644
--- a/ft_putchar.c
+++ b/ft_putchar.c
@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/18 10:49:00 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/20 15:51:04 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/22 11:07:22 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/ft_putchar.o b/ft_putchar.o
new file mode 100644
index 0000000..bcef31d
Binary files /dev/null and b/ft_putchar.o differ
diff --git a/ft_putnbr.c b/ft_putnbr.c
index cc3a098..cf709ff 100644
--- a/ft_putnbr.c
+++ b/ft_putnbr.c
@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/10/31 11:52:46 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/20 16:00:22 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/22 10:51:24 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -20,7 +20,7 @@ int	ft_putnbr(int n)
 	len = 0;
 	if (n < 0)
 	{
-		write(1, "-", 1);
+		len += write(1, "-", 1);
 		nbr = -n;
 	}
 	else
diff --git a/ft_putnbr.o b/ft_putnbr.o
new file mode 100644
index 0000000..393d144
Binary files /dev/null and b/ft_putnbr.o differ
diff --git a/ft_putnbrbase.c b/ft_putnbrbase.c
index 9d15ba8..7e3073a 100644
--- a/ft_putnbrbase.c
+++ b/ft_putnbrbase.c
@@ -6,16 +6,16 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/18 10:57:44 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/20 16:16:34 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/22 13:21:55 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "ft_printf.h"
 
-int	ft_putnbrbase(int n, char *base)
+int	ft_putnbrbase(unsigned long int n, char *base)
 {
-	int	base_len;
-	int	len;
+	unsigned long int	base_len;
+	int					len;
 
 	len = 0;
 	base_len = (int)ft_strlen(base);
diff --git a/ft_putnbrbase.o b/ft_putnbrbase.o
new file mode 100644
index 0000000..1cff54c
Binary files /dev/null and b/ft_putnbrbase.o differ
diff --git a/ft_putstr.o b/ft_putstr.o
new file mode 100644
index 0000000..ecfa1a3
Binary files /dev/null and b/ft_putstr.o differ
diff --git a/ft_strlen.o b/ft_strlen.o
new file mode 100644
index 0000000..6b9b640
Binary files /dev/null and b/ft_strlen.o differ
diff --git a/libftprintf.a b/libftprintf.a
new file mode 100644
index 0000000..20a55e9
Binary files /dev/null and b/libftprintf.a differ