[r6rs-discuss] peculiar semantics for a predicate

From: R. Kent Dybvig <dyb>
Date: Thu, 25 Oct 2007 21:35:34 -0400

> According to R6RS library chapter 13, the argument to
> hashtable? *must* be a hashtable, which means the
> hashtable? predicate always returns true. When given
> a non-hashtable as an argument, it raises an exception
> instead of returning.
>
> I doubt whether this was the intended semantics, but
> those of us who take R6RS conformance seriously will
> implement it faithfully.

Hmm. Users might not hold failure to strictly conform to R6RS in this
instance against an implementor, so I may risk it.

Kent
Received on Thu Oct 25 2007 - 21:35:34 UTC