Craig Brozefsky <[EMAIL PROTECTED]> writes:
> [[library procedure]] (assq obj alist)
[...]
>>> why do assq-ref and friends return #f when the key is not found
^^^^
>From Guile's geiler dokumentation:
- primitive: assq-ref ALIST KEY
- primitive: assv-ref ALIST KEY
- primitive: assoc-ref ALIST KEY
Like `assq', `assv' and `assoc', except that only the value
associated with KEY in ALIST is returned. These functions are
equivalent to
(let ((ent (ASSOCIATOR KEY ALIST)))
(and ent (cdr ent)))
where ASSOCIATOR is one of `assq', `assv' or `assoc'.
Not too logical, but at least it's documented. :)
Jost
