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Re: 1.5.6: (bound? ) missing from optargs.scm
From: |
Steve Tell |
Subject: |
Re: 1.5.6: (bound? ) missing from optargs.scm |
Date: |
Fri, 29 Mar 2002 01:40:57 -0500 (EST) |
On Thu, 28 Mar 2002, Thien-Thi Nguyen wrote:
> 2001-05-10 Marius Vollmer <address@hidden>
>
> * optargs.scm (bound?): Removed. We should not play games with
> the magical undefined value.
>
> i don't particularly understand what kinds of games are no longer being
> played, nor what is the suggested way to achieve prior functionality.
> "doc bug" means some kind of blurb explaining these things is due in
> NEWS.
That helps a little. After a little thought I found an obvious
workaround, using the default-value facility. That brings up the
question: with this change, when will it ever be useful to _not_ provide a
default value for a keyword or optional argument to a procedure built with
lambda*?
I suppose I can see how a "magical undefined value" could be a bit too
much like perl's "undef" for the purists, but this does make
lambda*/define* less useful IMHO.
Anyway, I am now successfuly building on 1.4 and 1.5.6, with 1.3.4 testing
still remaining. I feel like I have to support 1.3.4 until more of the
major linux distributions start shipping with 1.4 or later.
Steve
--
Steve Tell address@hidden
- 1.5.6: (bound? ) missing from optargs.scm, Steve Tell, 2002/03/28
- Re: 1.5.6: (bound? ) missing from optargs.scm, Thien-Thi Nguyen, 2002/03/28
- Re: 1.5.6: (bound? ) missing from optargs.scm, Thien-Thi Nguyen, 2002/03/28
- Re: 1.5.6: (bound? ) missing from optargs.scm,
Steve Tell <=
- Re: 1.5.6: (bound? ) missing from optargs.scm, Thien-Thi Nguyen, 2002/03/29
- Re: 1.5.6: (bound? ) missing from optargs.scm, Steve Tell, 2002/03/29
- Re: 1.5.6: (bound? ) missing from optargs.scm, Thien-Thi Nguyen, 2002/03/29
- Re: 1.5.6: (bound? ) missing from optargs.scm, Marius Vollmer, 2002/03/31
- Re: 1.5.6: (bound? ) missing from optargs.scm, Thien-Thi Nguyen, 2002/03/31
- Re: 1.5.6: (bound? ) missing from optargs.scm, Marius Vollmer, 2002/03/31
- Re: 1.5.6: (bound? ) missing from optargs.scm, Marius Vollmer, 2002/03/31