ft_lstmap.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_lstmap.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ibeliaie <ibeliaie@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/05/20 12:17:55 by ibeliaie          #+#    #+#             */
/*   Updated: 2023/05/25 14:21:40 by ibeliaie         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

/* iterate 'lst' & apply 'f' on each node, creating list as result of success */
t_list	*ft_lstmap(t_list *lst, void *(*f)(void *), void (*del)(void *))
{
	t_list	*new_list;
	t_list	*new_node;

	new_list = NULL;
	new_node = NULL;
	if (!lst || !f || !del)
		return (NULL);
	while (lst)
	{
		new_node = ft_lstnew(f(lst->content));
		if (!new_node)
		{
			ft_lstclear(&new_list, del);
			return (NULL);
		}
		ft_lstadd_back(&new_list, new_node);
		lst = lst->next;
	}
	return (new_list);
}