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At 11:52 AM -0600 1/13/99, John David Stone wrote: >[...] >--------------------------------------------------------------------------- > >CIRCULAR-LIST > > *** The SRFI-1 specification indicates that CIRCULAR-LIST always >returns a list, but since the objects it returns do not satisfy the R5RS >LIST? predicate I think this is misleading. I recommend changing `list' to >`pair' in the syntax picture. > >--------------------------------------------------------------------------- >[...] >--------------------------------------------------------------------------- > >LAST-PAIR > > The argument is a pair. > >--------------------------------------------------------------------------- I agree that a circular-list should not be considered a `list' for the purpose of the specification of safety preconditions. But, if it is considered a `pair' then I don't think the precondition for LAST-PAIR is sufficient. e