Move the first member of the chain to be just before the second. Fails
if either of the elements is not a chain->member
or they are equal. To move an element to the start of the chain, you may
use either of:
?- ignore(send(Ch, move_before, Element, Ch?head)).
?- send(Ch, move_after, Element).
See also chain->move_after, chain->before
and chain->after.
Diagnostics: Fails silently if either argument is not a chain->member
of the chain.
- See also
- - chain
->insert
- chain->before
- chain->insert_after
- chain->move_after
