ft_lstmap.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_lstmap.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: maceccar <maceccar@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/11/10 15:40:24 by maceccar          #+#    #+#             */
/*   Updated: 2023/11/10 15:46:08 by maceccar         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

t_list	*ft_lstmap(t_list *lst, void *(*f)(void *), void (*del)(void *))
{
	t_list	*res;
	t_list	*tmp;

	if (!lst || !del)
		return (NULL);
	res = NULL;
	while (lst)
	{
		tmp = ft_lstnew(f(lst->content));
		if (!tmp)
		{
			while (res)
			{
				tmp = res->next;
				del(lst->content);
				res = tmp;
			}
			del(lst->content);
			free(lst);
			return (NULL);
		}
		ft_lstadd_back(&res, tmp);
		lst = lst->next;
	}
	return (res);
}