public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/102013] Incorrect aggregate initialization of union
Date: Mon, 23 Aug 2021 23:06:32 +0000	[thread overview]
Message-ID: <bug-102013-4-UNaYzcghd6@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-102013-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102013

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is interesting:
struct A { int x = 6; };
struct B { int x = 3; };
union U {
    A a;
    B b;
};
static_assert (U{}.a.x==6);
U a{};
int main() {
    if (a.a.x != 6)
      __builtin_abort();
}

The static_assert works ....

      parent reply	other threads:[~2021-08-23 23:06 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-22 16:11 [Bug c++/102013] New: " fchelnokov at gmail dot com
2021-08-23  9:05 ` [Bug c++/102013] " rguenth at gcc dot gnu.org
2021-08-23 23:06 ` pinskia at gcc dot gnu.org [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-102013-4-UNaYzcghd6@http.gcc.gnu.org/bugzilla/ \
    --to=gcc-bugzilla@gcc.gnu.org \
    --cc=gcc-bugs@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).