More protection

- substr if start > str length
- all list functions check for NULL reference
- not modifying const pointers

1 files changed, 3 insertions, 3 deletions

diff --git a/ft_lstmap_bonus.c b/ft_lstmap_bonus.c
index 2c97c84..47d72a0 100644
--- a/ft_lstmap_bonus.c
+++ b/ft_lstmap_bonus.c
@@ -6,7 +6,7 @@
 /*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/10/09 09:03:57 by cacharle          #+#    #+#             */
-/*   Updated: 2019/10/15 15:28:47 by cacharle         ###   ########.fr       */
+/*   Updated: 2019/10/17 09:07:55 by cacharle         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,11 +17,11 @@ t_list	*ft_lstmap(t_list *lst, void *(*f)(void *))
 {
 	t_list	*mapped;
 
-	if (lst == NULL)
+	if (lst == NULL || f == NULL)
 		return (NULL);
 	if ((mapped = ft_lstnew(lst->content)) == NULL)
 		return (NULL);
-	mapped->content = f(mapped->content);
+	mapped->content = (*f)(mapped->content);
 	mapped->next = ft_lstmap(lst->next, f);
 	return (mapped);
 }