Atoms in association lists

[sidney%acorn@oak.lcs.mit.edu]

The behavior of assoc in current versions of Gold Hill's GCLISP is
to not signal an error when it encounters an atom in an alist. It is not
a matter of evaluating the car of an atom as nil, thus
  (assoc nil '((a   1) b (nil 5)) => (nil 5)

This behavior is a deficiency in the error checking, even if technically
not a bug. It is not an intentional interpretation of the standard.
GCLISP v3.0, our first version which fully conforms to CLtL, corrects
this.

-- sidney markowitz <sidney%acorn@oak.lcs.mit.edu>
   Gold Hill Computers