src/ft_lstmap.c


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

t_list *
ft_lstmap (t_list *lst, void *(*f) (void *), void (*del) (void *))
{
  t_list *new_list;
  t_list *node;
  void *content;

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