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Re: another nit.
- To: Dirk Herrmann <dirk at ida dot ing dot tu-bs dot de>
- Subject: Re: another nit.
- From: Michael Livshin <mlivshin at bigfoot dot com>
- Date: 06 Jul 2000 16:24:34 +0200
- Cc: Han-Wen Nienhuys <hanwen at cs dot uu dot nl>, Guile Mailing List <guile at sourceware dot cygnus dot com>
- Organization: who? me?
- References: <Pine.LNX.4.21.0007061604220.14582-100000@marvin.ida.ing.tu-bs.de>
Dirk Herrmann <dirk@ida.ing.tu-bs.de> writes:
> On 6 Jul 2000, Michael Livshin wrote:
>
> > (if #f #f) will yield you the `unspecified' object in any Scheme.
>
> As will (set! foo bar)? No: There is no such thing as an unspecified
> object in R5RS. R5RS says about 'unspecified':
>
> If the value of an expression is said to be "unspecified," then the
> expression must evaluate to some object without signalling an error, but
> the value depends on the implementation; this report explicitly does not
> say what value should be returned.
um... that's right.
--mike,
heading home to sleep.
--
SIGTHTBABW: a signal sent from Unix to its programmers at random
intervals to make them remember that There Has To Be A Better Way.
-- Erik Naggum