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Re: What does "lacks a prefix" mean?
From: |
Stefan Monnier |
Subject: |
Re: What does "lacks a prefix" mean? |
Date: |
Fri, 10 Jul 2015 13:04:30 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
>> let* says "I need variables which depend on each
>> other" and if they're really not, that look strange.
If let behaved like let* it wouldn't look strange to you. Many other
functional languages dropped the "simultaneous let" and only kept the
equivalent of let* (or even letrec).
>> And probably it's a bit slower.
Regarding efficiency, there's no clear winner between the two.
It's basically irrelevant.
>> And non-parallelizable theoretically :)
In practice neither is easily parallelizable anyway. And the work
needed to auto-convert a "let*" to a "let" when possible is trivial in
comparison to what's needed to parallelize the code.
So again, it's really irrelevant.
Stefan
- What does "lacks a prefix" mean?, BobD, 2015/07/08
- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/08
- Re: What does "lacks a prefix" mean?, Vaidheeswaran C, 2015/07/08
- Re: What does "lacks a prefix" mean?, Vaidheeswaran C, 2015/07/08
- Re: What does "lacks a prefix" mean?, BobD, 2015/07/08
- 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 <=
- Re: What does "lacks a prefix" mean?, Emanuel Berg, 2015/07/11
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- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/11
- Re: What does "lacks a prefix" mean?, Filipp Gunbin, 2015/07/13
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- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/10
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- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/09
- RE: What does "lacks a prefix" mean?, Drew Adams, 2015/07/09
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- 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
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- Re: What does "lacks a prefix" mean?, Barry Margolin, 2015/07/10
- RE: What does "lacks a prefix" mean?, Drew Adams, 2015/07/10