From: prj@po.cwru.edu (Paul Jarc)
Cc: guile-user@gnu.org, hanwen@cs.uu.nl
Subject: Re: C++ declaration style programming?
Date: Wed, 21 Jan 2004 11:06:24 -0500 [thread overview]
Message-ID: <m3oesx2smh.fsf@multivac.cwru.edu> (raw)
In-Reply-To: <20040121154109.SIFC267436.web02-imail.rogers.com@localhost>
Viktor Pavlenko <vvp@rogers.com> wrote:
> let* is a binding construct by definition and it is an error to
> bind the same identifier twice (r5rs).
Guile complains about duplicate bindings in let or letrec, but not
let*; the second binding simply shadows the first. I believe that's
what R5RS specifies. (So it is possible to accidentally shadow an
existing binding, which may cause trouble in subsequent code similar
to set!.)
> Using side effects to re-bind a variable within the binding
> expression of let* sounds like cheating :)
There are other forms of side effects, like I/O.
paul
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next prev parent reply other threads:[~2004-01-21 16:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-21 15:41 C++ declaration style programming? Viktor Pavlenko
2004-01-21 16:06 ` Paul Jarc [this message]
2004-01-22 2:24 ` Thien-Thi Nguyen
2004-01-22 4:28 ` Viktor Pavlenko
-- strict thread matches above, loose matches on Subject: below --
2004-01-21 14:22 Viktor Pavlenko
2004-01-21 14:26 ` Han-Wen Nienhuys
2004-01-20 22:17 Han-Wen Nienhuys
2004-01-21 3:58 ` Viktor Pavlenko
2004-01-21 12:40 ` Han-Wen Nienhuys
2004-01-21 4:57 ` Issac Trotts
2004-01-21 5:00 ` Stephen Compall
2004-01-21 12:45 ` Han-Wen Nienhuys
2004-01-21 5:03 ` Lynn Winebarger
2004-01-21 21:46 ` Keith Wright
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