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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/95626] [concepts] incorrect ambiguous overload with constraints "A && !B" vs "!B" Date: Wed, 10 Jun 2020 18:52:42 +0000 [thread overview] Message-ID: <bug-95626-4-V0xVfJtbmB@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-95626-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95626 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- This is not a bug, subsumption doesn't work for !B To make it work you need to define a concept, as in your second example. This is explained in the C++20 draft by the note in [temp.constr.op] p5, which was added by https://wg21.link/p1971r0#US111 *** This bug has been marked as a duplicate of bug 92102 ***
next prev parent reply other threads:[~2020-06-10 18:52 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-06-10 18:29 [Bug c++/95626] New: " godeffroy.valet at m4x dot org 2020-06-10 18:52 ` redi at gcc dot gnu.org [this message] 2020-06-11 9:05 ` [Bug c++/95626] " godeffroy.valet at m4x dot org
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