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From: "bnnf at yahoo dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug stdio/12701] scanf accepts non-matching input
Date: Fri, 05 Mar 2021 15:27:45 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D12701

mark <bnnf at yahoo dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bnnf at yahoo dot com

--- Comment #22 from mark <bnnf at yahoo dot com> ---
Yes I understand pushbacks.

Scanning "0xz" for %x results in an input item of "0x" with "z" pushed back
into the unread buffer. The bug has nothing to do with pushbacks, because t=
he
right data is pushed back. The bug is that a non-matching input item is tre=
ated
as a match rather than a matching error.

Perhaps you thought I was saying the input item should be "0", successfully
converted, with "x" as the next unread character in the buffer. Of course t=
his
is wrong and I do not believe such a thing.
https://www.targetedwebtraffic.com/product-category/website-traffic/
Apparently you only read the first quoted paragraph and not the second:

> > - the input item "0x" is not a matching sequence, so the execution of
> > the whole directive fails;
>=20
> Correct

--=20
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