From: Mike Frysinger <vapier@gentoo.org>
To: Peng Yu <pengyu.ut@gmail.com>
Cc: libc-help <libc-help@sourceware.org>
Subject: Re: Why is st_size defined as a signed int?
Date: Tue, 27 Apr 2021 12:06:51 -0400 [thread overview]
Message-ID: <YIg2m5EikyfZwI1C@vapier> (raw)
In-Reply-To: <CABrM6wmmr_QU4Z=d8gsPMr812AWtgrf80kNs1+1Qezvn_0RN6A@mail.gmail.com>
On 27 Apr 2021 09:01, Peng Yu via Libc-help wrote:
> https://github.com/bminor/glibc/blob/master/bits/stat.h#L47
>
> I see st_size is defined as __off_t, which should be a signed int. But
> can a file size be negative. If not, why not use an unsigned int to
> represent the file size? Thanks.
it's an offset, not a size. lseek can legitimately be negative.
otherwise, at this point, the interfaces are ossified by POSIX, and glibc
simply has to match whatever it has.
-mike
next prev parent reply other threads:[~2021-04-27 16:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-27 14:01 Peng Yu
2021-04-27 16:06 ` Mike Frysinger [this message]
2021-04-27 17:05 ` Andrew Bell
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