Availability:built-in
[det]frozen(@Term,
-Goal)true.
Note that
frozen/2
reports all delayed goals, not only those delayed due to
freeze/2.
The goals are extracted using copy_term/3.192Versions
prior to 8.3.7 only report goals delayed using freeze/2
on a plain variable. The new behaviour is compatible with SICStus.
See also
term_attvars/2
and call_residue_vars/2.