ft_lstmap.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_lstmap.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: antandre <antandre@student.42barcel>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/06/26 16:54:00 by antandre          #+#    #+#             */
/*   Updated: 2024/06/26 17:38:01 by antandre         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"
#include <stdlib.h>

/*
 * Iterates the list 'lst' and applies the function 'f' to it content
 * of each node. Create a resulting list of the correct and successive
 * application of the function 'f' over each node.
 * The 'del' function is used to delete the contents of a node, if needed.
 */

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

	new = NULL;
	while (lst)
	{
		tmp = ft_lstnew(f(lst->content));
		if (!tmp)
		{
			ft_lstclear(&new, del);
			return (0);
		}
		ft_lstadd_back(&new, tmp);
		lst = lst->next;
	}
	return (new);
}