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Re: What does "lacks a prefix" mean?
From: |
Barry Margolin |
Subject: |
Re: What does "lacks a prefix" mean? |
Date: |
Thu, 09 Jul 2015 19:27:11 -0400 |
User-agent: |
MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) |
In article <mailman.6612.1436455429.904.help-gnu-emacs@gnu.org>,
Filipp Gunbin <fgunbin@fastmail.fm> wrote:
> On 09/07/2015 01:24 +0200, Emanuel Berg wrote:
>
> > BobD <daycandle@gmail.com> writes:
> >
> >> But of course. I'm fooling with old elisp that uses
> >> "setq" willy-nilly, defying the notational
> >> structuring with which latter day programmers have
> >> been (properly) indoctrinated. If I must, I can
> >> wedge some let's into the code.
> >
> > And: use `let*' if any variable depend on and uses
> > a previously defined one to do its computation.
> >
> > Actually I see no harm using let* all the time.
>
> let* says "I need variables which depend on each other" and if they're
> really not, that look strange.
>
> And probably it's a bit slower.
If it is, that's a misfeature of the compiler.
> And non-parallelizable theoretically :)
Regular let isn't parallelizable. It specifies that the value
expressions are evaluated in order.
The only difference between the two is the environment within which
later expressions are evaluated.
--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
- Re: What does "lacks a prefix" mean?, (continued)
- Re: What does "lacks a prefix" mean?, Pascal J. Bourguignon, 2015/07/08
- Re: What does "lacks a prefix" mean?, BobD, 2015/07/08
- Re: What does "lacks a prefix" mean?, Emanuel Berg, 2015/07/08
- Re: What does "lacks a prefix" mean?, Filipp Gunbin, 2015/07/09
- Re: What does "lacks a prefix" mean?, Emanuel Berg, 2015/07/09
- Re: What does "lacks a prefix" mean?, Stefan Monnier, 2015/07/10
- Re: What does "lacks a prefix" mean?, Emanuel Berg, 2015/07/11
- Message not available
- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/11
- Re: What does "lacks a prefix" mean?, Filipp Gunbin, 2015/07/13
- Message not available
- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/10
- Message not available
- Re: What does "lacks a prefix" mean?,
Barry Margolin <=
- RE: What does "lacks a prefix" mean?, Drew Adams, 2015/07/09
- Message not available
- Re: What does "lacks a prefix" mean?, Pascal J. Bourguignon, 2015/07/09
- RE: What does "lacks a prefix" mean?, Drew Adams, 2015/07/10
- Message not available
- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/10
- RE: What does "lacks a prefix" mean?, Drew Adams, 2015/07/10
- Message not available
- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/09
- Re: What does "lacks a prefix" mean?, Rusi, 2015/07/09
- Re: What does "lacks a prefix" mean?, Emanuel Berg, 2015/07/09
- Message not available
- Re: What does "lacks a prefix" mean?, Rusi, 2015/07/09
- Re: What does "lacks a prefix" mean?, Emanuel Berg, 2015/07/10