Is there a way to add elements to an intrusive list with only forward_link node types?

[tanvib00]

The push_back and insert methods both require the use of link_type::etl_previous, so we can't use these methods to add forward_link type nodes to an intrusive list. Is there another way of doing this which doesn't require using only bidirectional_link types?

Looking into this to save the extra 4 bytes required for the previous pointer saved by bidirectional links.

[jwellbelove]

A bidirectional list requires bidirectional nodes.
Why not use an etl::intrusive_forward_list?