From: Joerg Sonnenberger <joerg@britannica.bec.de>
To: tech@mdocml.bsd.lv
Subject: Re: mdocml: The st_size member of struct stat is off_t, which is signed, all
Date: Wed, 11 Mar 2015 02:18:01 +0100 [thread overview]
Message-ID: <20150311011801.GA22191@britannica.bec.de> (raw)
In-Reply-To: <20150311011032.GB22101@athene.usta.de>
On Wed, Mar 11, 2015 at 02:10:32AM +0100, Ingo Schwarze wrote:
> [ Moving this to tech@ ]
>
> Hi Joerg,
>
> Joerg Sonnenberger wrote on Tue, Mar 10, 2015 at 10:47:38PM +0100:
> > On Tue, Mar 10, 2015 at 09:18:22AM -0500, schwarze@mdocml.bsd.lv wrote:
>
> >> Log Message:
> >> -----------
> >> The st_size member of struct stat is off_t, which is signed,
> >> all required by POSIX. So don't compare it against against
> >> an unsigned constant.
>
> > Well, the change truncates the value.
>
> How so? The actual width of size_t will hardly be narrower
> than the width of off_t on any sane platform, or am i mistaken?
Most 32bit platforms are exactly like that. size_t will be 32bit, off_t
will be 64bit. So casting the off_t to size_t will rip out the higher
bits.
Joerg
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next prev parent reply other threads:[~2015-03-11 1:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1281237932347383369.enqueue@fantadrom.bsd.lv>
[not found] ` <20150310214738.GA20964@britannica.bec.de>
2015-03-11 1:10 ` Ingo Schwarze
2015-03-11 1:18 ` Joerg Sonnenberger [this message]
2015-03-11 13:30 ` Ingo Schwarze
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