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Message-ID: <20150920164435.GB10551@port70.net>
Date: Sun, 20 Sep 2015 18:44:35 +0200
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: Re: out of range struct tm fields in strftime
* Rich Felker <dalias@...c.org> [2015-09-20 12:36:29 -0400]:
> On Sun, Sep 20, 2015 at 02:44:50PM +0200, Szabolcs Nagy wrote:
> > out of range tm fields should not be treated as ub
> > as noted in the thread
> > http://sourceware.org/ml/libc-alpha/2015-09/msg00546.html
> >
> > i have a patch but there might be simpler approaches
>
> Wouldn't it be less invasive to just make some small changes like
> putting a U on some of the constants so that the arithmetic happens as
> unsigned?
>
that might be simpler (and probably generates better
code for div,mod by const)
but for the nl_langinfo item computation the range
has to be limited properly (tm_wday and tm_mon are
affected).
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