Add pointer support and improve debug and valgrind in Makefile

libftprintf/libftprintf.h

@@ -6,7 +6,7 @@
 /*   By: gbaconni@student.42lausanne.ch             +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/01/18 15:26:06 by gbaconni          #+#    #+#             */
-/*   Updated: 2022/04/14 23:56:24 by gbaconni         ###   lausanne.ch       */
+/*   Updated: 2022/04/15 16:50:38 by gbaconni         ###   lausanne.ch       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,6 +17,12 @@
 # include <stdarg.h>
 # include <unistd.h>
 
+# if defined (__APPLE__)
+#  define NIL "0x0"
+# else
+#  define NIL "(nil)"
+# endif
+
 /* Helper */
 
 char	*ft_itoa_base(int n, char *base);