From: Xavier Leroy <xavier.leroy@inria.fr>
To: Yamagata Yoriyuki <yoriyuki@mbg.ocn.ne.jp>
Cc: sjah@land.ru, caml-list@inria.fr
Subject: Re: [Caml-list] string_of_float -> float_of_string locale dependency bug
Date: Mon, 14 Jun 2004 17:58:22 +0200 [thread overview]
Message-ID: <20040614175822.B28810@pauillac.inria.fr> (raw)
In-Reply-To: <20040615.002347.94548124.yoriyuki@mbg.ocn.ne.jp>; from yoriyuki@mbg.ocn.ne.jp on Tue, Jun 15, 2004 at 12:23:47AM +0900
> Camomile needs to set LC_ALL to acquire LC_NUMERIC value. Camomile
> does not use LC_NUMERIC value currently, but it provides API to
> getting all LC_* values for the user.
Fine. So what about restoring LC_NUMERIC after getting its value, like you
helpfully suggest that the Caml run-time system does?
> > The C library API for internationalization is largely broken, and as
> > you can see there is nothing we can do to work around the fact that
> > the current locale is a global variable for the whole program.
>
> You can temporally save the current LC_NUMERIC value, change its value
> to C, and restore the value after the conversion. What is a problem?
Speed. setlocale() is quite expensive, and string <-> float
conversions can be extremely frequent.
- Xavier Leroy
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next prev parent reply other threads:[~2004-06-14 15:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-13 13:30 Evgeny Chukreev
2004-06-13 15:05 ` Yamagata Yoriyuki
2004-06-14 9:54 ` Xavier Leroy
2004-06-14 12:00 ` Evgeny Chukreev
2004-06-14 15:23 ` Yamagata Yoriyuki
2004-06-14 15:57 ` Evgeny Chukreev
2004-06-14 16:04 ` Xavier Leroy
2004-06-14 16:27 ` Shawn Wagner
2004-06-14 15:58 ` Xavier Leroy [this message]
2004-06-14 21:51 ` Yamagata Yoriyuki
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