dll_replace

[LeonorMalaga]

t_dlist dll_replace(t_dlist elem, void data) { t_dlist new;

new = dll_new(data);
if (!new)
    return (NULL);
if (elem->prev)
    elem->prev->next = new;
if (elem->next)
    elem->next->prev = new;
new->prev = elem->prev;
new->next = elem->next;
free(elem);
return (new);

}