ft_lstmap_bonus.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   ft_lstmap.c                                        :+:    :+:            */
/*                                                     +:+                    */
/*   By: jaberkro <jaberkro@student.codam.nl>         +#+                     */
/*                                                   +#+                      */
/*   Created: 2021/10/28 15:50:11 by jaberkro      #+#    #+#                 */
/*   Updated: 2021/10/28 22:08:16 by jaberkro      ########   odam.nl         */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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

/* Iterates the list ’lst’ and applies the function
’f’ to the content of each element. Creates a new
list resulting of the successive applications of
the function ’f’. The ’del’ function is used to
delete the content of an element if needed.
 */