ft_lstmap.c File Reference

#include "../includes/libft.h"
#include "../includes/types.h"

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Functions
t_list *	ft_lstmap (t_list *lst, void *(*f)(void *), void(*del)(void *))
	Creates a new linked list with the results of applying a function to each element of the original list. This function takes a linked list and two function pointers, then applies the first function to the content of each element in the list and creates a new list with the results.

Function Documentation

ft_lstmap()

t_list * ft_lstmap	(	t_list *	lst,
		void *(*)(void *)	f,
		void(*)(void *)	del
	)

Creates a new linked list with the results of applying a function to each element of the original list. This function takes a linked list and two function pointers, then applies the first function to the content of each element in the list and creates a new list with the results.

Parameters

lst	The linked list to iterate over.
f	The function to apply to each element.
del	The function to delete each element.

Returns

A pointer to the new linked list, or NULL if an error occurs.

Definition at line 26 of file ft_lstmap.c.

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

References s_list::content, ft_lstadd_back(), ft_lstclear(), ft_lstnew(), and s_list::next.

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