instance-deleted-p

Purpose
Determine if a unit instance has been deleted.

Package   :gbbopen

Module   :gbbopen-core

Arguments and values

Returns
True if the unit instance is deleted; nil otherwise.

See also
    *skip-deleted-unit-instance-class-change*
    check-for-deleted-instance
    delete-instance
    incomplete-instance-p

Example
Create, then delete, then check, a hyp unit instance:

  > (instance-deleted-p (delete-instance (make-instance 'hyp)))
  t
  >

instance-deleted-p