libft/ft_lstmap_bonus.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_lstmap_bonus.c                                  :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kcolin <marvin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/21 17:14:36 by kcolin            #+#    #+#             */
/*   Updated: 2024/10/23 11:41:00 by kcolin           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

t_list	*ft_lstmap(t_list *lst, void *(*f)(void *), void (*del)(void *))
{
	t_list	*out;
	t_list	*next;
	void	*new_content;

	out = NULL;
	while (lst != NULL)
	{
		new_content = (*f)(lst->content);
		next = ft_lstnew(new_content);
		if (next == NULL)
		{
			ft_lstclear(&out, del);
			(*del)(new_content);
			return (NULL);
		}
		ft_lstadd_back(&out, next);
		lst = lst->next;
	}
	return (out);
}

/*
#include <stdio.h>
#include <stdlib.h>

void	*modify_string(void *data)
{
	char	*next;

	next = ft_strjoin((char *)data, "!!!");
	return (next);
}

void	print_string(void *data)
{
	printf("'%s'\n", (char *)data);
}

void	noop(void *data)
{
	(void)data;
}

int	main(void)
{
	t_list	*list;
	t_list	*out;

	list = ft_lstnew("Hello There");
	ft_lstadd_front(&list, ft_lstnew("New Element"));
	ft_lstadd_front(&list, ft_lstnew("New Element Again"));
	ft_lstadd_front(&list, ft_lstnew("How? New Element"));
	out = ft_lstmap(list, &modify_string, &free);
	printf("=> Original:\n");
	ft_lstiter(list, &print_string);
	printf("=> Modified:\n");
	ft_lstiter(out, &print_string);
	ft_lstclear(&list, &noop);
	ft_lstclear(&out, &free);
	return (0);
}
*/