public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "ppalka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/112749] GCC accepts invalid code in concepts (requires clause incorrectly satisfied) Date: Tue, 28 Nov 2023 20:44:27 +0000 [thread overview] Message-ID: <bug-112749-4-K6XkQIMv5E@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-112749-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112749 Patrick Palka <ppalka at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |DUPLICATE CC| |ppalka at gcc dot gnu.org Status|UNCONFIRMED |RESOLVED --- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> --- Thanks for the bug report, I think this is pretty much a dup of PR102419. GCC is behaving correctly here: the normal form of the constraint C1<W1<T>> is just 'true (with empty parameter mapping)' which is independent of the template parameter, so the constraint is trivially satisfied for any choice of T. To get the behavior you desire, define C1 in a way that depends on its template parameter e.g. template<class T> concept C1 = requires { typename T; }; *** This bug has been marked as a duplicate of bug 102419 ***
prev parent reply other threads:[~2023-11-28 20:44 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-11-28 18:22 [Bug c++/112749] New: " novulae at hotmail dot com 2023-11-28 20:44 ` ppalka 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-112749-4-K6XkQIMv5E@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: linkBe 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).