public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "eric.niebler at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/66988] New: [concepts] concept with template template parameter satisfied erroneously Date: Fri, 24 Jul 2015 07:36:00 -0000 [thread overview] Message-ID: <bug-66988-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66988 Bug ID: 66988 Summary: [concepts] concept with template template parameter satisfied erroneously Product: gcc Version: c++-concepts Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: eric.niebler at gmail dot com Target Milestone: --- Pretty sure the static assert in the program below should not fire, but it does. #include <type_traits> template <template <class...> class T, class... U> concept bool _Valid = requires { typename T<U...>; }; template <class T> using __t = typename T::type; template <class T> struct __has_type : std::false_type { }; template <class T> requires _Valid<__t, T> struct __has_type<T> : std::true_type { }; static_assert(!__has_type<int>(), "");
next reply other threads:[~2015-07-24 7:36 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-07-24 7:36 eric.niebler at gmail dot com [this message] 2015-07-24 16:18 ` [Bug c++/66988] " andrew.n.sutton at gmail dot com 2015-07-24 17:01 ` eric.niebler at gmail dot com 2015-07-25 3:20 ` jason at gcc dot gnu.org 2015-07-25 3:21 ` jason at gcc dot gnu.org
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-66988-4@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).