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Re: Using empty_string as the only "" string
From: |
Andreas Schwab |
Subject: |
Re: Using empty_string as the only "" string |
Date: |
Wed, 25 Apr 2007 00:11:39 +0200 |
User-agent: |
Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.97 (gnu/linux) |
"Juanma Barranquero" <address@hidden> writes:
> The doc also says: "For other types (e.g., lists, vectors, strings),
> two arguments with the same contents or elements are not necessarily
> `eq' to each other: they are `eq' only if they are the same object,
> meaning that a change in the contents of one will be reflected by the
> same change in the contents of the other."
>
> So, as I said, it is an issue of object identity. I didn't say that
> the results above would be "wrong", only surprising, and a noticeable
> change in the current behaviour.
The key word in the documentation is "necessarily". Since the objects we
talk about are immutable there is no conflict with the specification.
Andreas.
--
Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
- Using empty_string as the only "" string, Dmitry Antipov, 2007/04/24
- Re: Using empty_string as the only "" string, Juanma Barranquero, 2007/04/24
- Re: Using empty_string as the only "" string, David Kastrup, 2007/04/24
- Re: Using empty_string as the only "" string, Lennart Borgman (gmail), 2007/04/24
- Re: Using empty_string as the only "" string, David Kastrup, 2007/04/24
- Re: Using empty_string as the only "" string, Andreas Schwab, 2007/04/24
- Re: Using empty_string as the only "" string, Kenichi Handa, 2007/04/24
- Re: Using empty_string as the only "" string, Andreas Schwab, 2007/04/25
- Re: Using empty_string as the only "" string, David Kastrup, 2007/04/25
- Re: Using empty_string as the only "" string, Andreas Schwab, 2007/04/25
- Re: Using empty_string as the only "" string, Lennart Borgman (gmail), 2007/04/24