From: Eli Zaretskii <eliz@gnu.org>
To: kbrown@cornell.edu
Cc: 32230@debbugs.gnu.org, eggert@cs.ucla.edu
Subject: bug#32230: 27.0.50; GCC 7 warning due to -Wformat-overflow
Date: Sat, 21 Jul 2018 10:26:15 +0300 [thread overview]
Message-ID: <83effxyrqg.fsf@gnu.org> (raw)
In-Reply-To: <83fu0dyt9r.fsf@gnu.org> (message from Eli Zaretskii on Sat, 21 Jul 2018 09:53:04 +0300)
> Date: Sat, 21 Jul 2018 09:53:04 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 32230@debbugs.gnu.org, eggert@cs.ucla.edu
>
> But do you understand why it says "between 5 and 8 bytes"? The
> corresponding argument to snprintf is either 4 or 6, so it should be
> between 5 and 7. Where could the extra byte come from? Is that
> because glyphless.ch is a 25-bit field?
I meant sprintf, of course. And if the above is the reason, then
perhaps using something like
(unsigned int) glyph->u.glyphless.ch & 0xffffff
is a cleaner solution (assuming it shuts up the warning)?
next prev parent reply other threads:[~2018-07-21 7:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-20 22:02 bug#32230: 27.0.50; GCC 7 warning due to -Wformat-overflow Ken Brown
2018-07-21 6:53 ` Eli Zaretskii
2018-07-21 7:26 ` Eli Zaretskii [this message]
2018-07-21 12:42 ` Ken Brown
2018-07-21 12:47 ` Eli Zaretskii
2018-07-21 16:26 ` Ken Brown
2018-07-21 16:40 ` Eli Zaretskii
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