It seems that flip-hash-table is missing a parameter to specify how keys of the resulting hash table are tested for equality (the :test argument of MAKE-HASH-TABLE).
If I have a hash table with a test function of EQL that maps integers to conses, and I call FLIP-HASH-TABLE, the resulting hash table's cons keys are not accessible without obtaining references to the original cons identities.
It seems that
flip-hash-tableis missing a parameter to specify how keys of the resulting hash table are tested for equality (the:testargument ofMAKE-HASH-TABLE).If I have a hash table with a test function of EQL that maps integers to conses, and I call
FLIP-HASH-TABLE, the resulting hash table's cons keys are not accessible without obtaining references to the original cons identities.