From: Rich Felker <dalias@libc.org>
To: musl@lists.openwall.com
Subject: Re: Bug report on iswalpha
Date: Tue, 5 Aug 2014 17:23:18 -0400 [thread overview]
Message-ID: <20140805212318.GN1674@brightrain.aerifal.cx> (raw)
In-Reply-To: <CAEX4NpRJP+ricsDidittgks8sMNAp3hUBFFRfBZ9oWSmimWM8Q@mail.gmail.com>
On Tue, Aug 05, 2014 at 02:10:25PM -0700, Alon Zakai wrote:
> I see what you mean, yes, this does seem like undefined behavior then, as
> it's invalid in that locale. Thanks for the quick response!
Just to be clear -- given musl's current C locale, it's not UB in
musl. In musl's current C locale, mbtowc() for "\xc3\xb4" produces
(wchar_t)0xf4, so the behavior is well-defined and the "true" result
is correct. On the other hand, the behavior is undefined for glibc.
Rich
prev parent reply other threads:[~2014-08-05 21:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-05 20:35 Alon Zakai
2014-08-05 21:02 ` Rich Felker
2014-08-05 21:10 ` Alon Zakai
2014-08-05 21:23 ` Rich Felker [this message]
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