input validation

libft/ft_lstiter_bonus.c

@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_lstiter_bonus.c                                 :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/11/09 15:51:31 by dgaillet          #+#    #+#             */
+/*   Updated: 2025/11/12 15:54:18 by dgaillet         ###   ########lyon.fr   */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+void	ft_lstiter(t_list *lst, void (*f)(void *))
+{
+	if (!f)
+		return ;
+	while (lst)
+	{
+		f(lst->content);
+		lst = lst->next;
+	}
+}