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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/99637] bit_cast doesn't work with padding bits and it should
Date: Thu, 18 Mar 2021 09:19:51 +0000	[thread overview]
Message-ID: <bug-99637-4-LqHsAh4D4r@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-99637-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99637

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #5)
> (In reply to Jonathan Wakely from comment #4)
> > So the result cannot be created.
> 
> Not during constant evaluation, anyway.

And outside of constant evaluation with undefined behavior with the exception
of bit_cast to unsigned char / std::byte?

  parent reply	other threads:[~2021-03-18  9:19 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-17 20:46 [Bug c++/99637] New: " hanicka at hanicka dot net
2021-03-17 20:58 ` [Bug c++/99637] " jakub at gcc dot gnu.org
2021-03-17 21:19 ` hanicka at hanicka dot net
2021-03-17 21:22 ` jakub at gcc dot gnu.org
2021-03-17 21:23 ` redi at gcc dot gnu.org
2021-03-18  9:12 ` redi at gcc dot gnu.org
2021-03-18  9:19 ` jakub at gcc dot gnu.org [this message]
2021-03-18 10:35 ` redi at gcc dot gnu.org
2023-04-26  7:51 ` m.cencora at gmail dot com

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