struct mlistelem * mlist_replace(mlist_t list, void *data)
{
struct mlistelem *e;
e = mlist_get(list,data);
if (e == NULL)
return NULL;
memcpy(mlistelem_dataptr(e), data,list->data_size);
return e;
}
MList* mlist_insert(MList* list, void* data, int position) {
MList *new_list;
MList *tmp_list;
if (position < 0)
return mlist_append(list, data);
else if (position == 0)
return mlist_prepend(list, data);
tmp_list = mlist_get(list, position);
if (!tmp_list)
return mlist_append (list, data);
new_list = mlist_new();
new_list->data = data;
new_list->prev = tmp_list->prev;
tmp_list->prev->next = new_list;
new_list->next = tmp_list;
tmp_list->prev = new_list;
return list;
}