ft_lstlast: initial implementation

Makefile

@@ -6,7 +6,7 @@
 #    By: kcolin <marvin@42.fr>                      +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2024/10/14 13:43:59 by kcolin            #+#    #+#              #
-#    Updated: 2024/10/21 11:49:58 by kcolin           ###   ########.fr        #
+#    Updated: 2024/10/21 12:06:41 by kcolin           ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -49,7 +49,8 @@ SOURCES = ft_isalpha.c \
 OBJECTS = $(SOURCES:.c=.o)
 BONUS_SOURCES =	ft_lstnew_bonus.c \
 	ft_lstadd_front_bonus.c \
-	ft_lstsize_bonus.c
+	ft_lstsize_bonus.c \
+	ft_lstlast_bonus.c
 BONUS_OBJECTS = $(BONUS_SOURCES:.c=.o)
 
 .PHONY: all

ft_lstlast_bonus.c

@@ -0,0 +1,52 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_lstlast_bonus.c                                 :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/21 12:03:16 by kcolin            #+#    #+#             */
+/*   Updated: 2024/10/21 12:04:50 by kcolin           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+t_list	*ft_lstlast(t_list *lst)
+{
+	t_list	*current;
+
+	current = lst;
+	while (current->next != NULL)
+	{
+		current = current->next;
+	}
+	return (current);
+}
+
+/*
+#include <stdio.h>
+#include <stdlib.h>
+
+int	main(void)
+{
+	t_list	*list;
+	t_list	*new;
+
+	list = ft_lstnew("Hello There!");
+	printf("current:\t%p\n", list);
+	printf("content:\t%s\n", (char *)list->content);
+	printf("next:\t\t%p\n", list->next);
+	printf("length:\t%d\n", ft_lstsize(list));
+	new = ft_lstnew("New Element!");
+	ft_lstadd_front(&list, new);
+	printf("current:\t%p\n", list);
+	printf("content:\t%s\n", (char *)list->content);
+	printf("next:\t\t%p\n", list->next);
+	printf("length:\t%d\n", ft_lstsize(list));
+	printf("last:\t\t%p\n", ft_lstlast(list));
+	free(list->next);
+	free(list);
+	return (0);
+}
+*/

libft.h

@@ -6,7 +6,7 @@
 /*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/10/15 10:11:54 by kcolin            #+#    #+#             */
-/*   Updated: 2024/10/21 11:11:02 by kcolin           ###   ########.fr       */
+/*   Updated: 2024/10/21 12:11:28 by kcolin           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -72,5 +72,6 @@ typedef struct s_list
 t_list	*ft_lstnew(void *content);
 void	ft_lstadd_front(t_list **lst, t_list *new);
 int		ft_lstsize(t_list *lst);
+t_list	*ft_lstlast(t_list *lst);
 
 #endif