Reject a dictionary entry whose declared fields are outside their domains.
Applied to caller-supplied entries at the point they enter a generator: an
entry with a difficulty of 40 would otherwise pass every ceiling and be
chosen for a beginner's part.
Reject a dictionary entry whose declared fields are outside their domains.
Applied to caller-supplied entries at the point they enter a generator: an entry with a difficulty of 40 would otherwise pass every ceiling and be chosen for a beginner's part.