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From: "de34 at live dot cn" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/78014] -Wformat -vs- size_t
Date: Wed, 19 Oct 2022 03:29:43 +0000	[thread overview]
Message-ID: <bug-78014-4-6w0FDWAG8q@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-78014-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78014

Jiang An <de34 at live dot cn> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |de34 at live dot cn

--- Comment #9 from Jiang An <de34 at live dot cn> ---
Additionally, what happens when I write `using my_size_t =
decltype(sizeof(0));` (C++) or `typedef typeof(sizeof(0)) my_size_t;` (GNU C or
C23)?

I think such enhancement of warnings effectively requires size_t to be some
kind of "strong typedef", and the "strength" should be generated from sizeof,
alignof, etc..

Perhaps the built-in operator- between pointers also needs to generate such
"strength" for the purpose of ptrdiff_t.

      parent reply	other threads:[~2022-10-19  3:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-78014-4@http.gcc.gnu.org/bugzilla/>
2022-10-19  1:49 ` sam at gentoo dot org
2022-10-19  3:29 ` de34 at live dot cn [this message]

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