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bug#12392: emacs-gtk misinterprets floating-point numbers under certain
From: |
Holger Arnold |
Subject: |
bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2 |
Date: |
Fri, 21 Sep 2012 22:08:02 +0200 |
User-agent: |
KMail/4.9.1 (Linux/3.5.4-1-default; KDE/4.9.1; i686; ; ) |
On Thursday 13 September 2012 at 01:20:29, Paul Eggert wrote:
> This particular problem looks like it's probably an OpenSUSE bug, but
> in general one cannot combine LC_NUMERIC=C with random encodings in
> LC_CTYPE. It's safer if Emacs uses the C locale when parsing floating
> point numbers. Here's a proposed patch to do that. Can you apply
> this against the Emacs trunk and give it a try?
I have not yet had a chance to test these patches. But is it really the
correct approach to set the locale to "C" whenever a number literal is read or
written and to set it back afterward? (Btw., is setlocale() thread-safe?)
Wouldn't it be simpler and more reliable to have number conversion functions
that are independent of the current locale?
> +/* Cache for the C locale object.
> + Marked volatile so that different threads see the same value
> + (avoids locking). */
> +static volatile locale_t c_locale_cache;
Maybe I'm missing something, but declaring a variable volatile does not
automatically make it thread-safe, does it?
Holger
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, (continued)
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Holger Arnold, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Eli Zaretskii, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Holger Arnold, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Eli Zaretskii, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Holger Arnold, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Eli Zaretskii, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Holger Arnold, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Eli Zaretskii, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Holger Arnold, 2012/09/22
- bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2, Achim Gratz, 2012/09/22
bug#12392: emacs-gtk misinterprets floating-point numbers under certain locales on openSUSE 12.2,
Holger Arnold <=