From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 1B9013858C5E; Thu, 21 Mar 2024 21:43:46 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1B9013858C5E
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1711057427;
	bh=4PM3ZzLOhyzTpeSsqRhgvXsdqausYBJ1YhuaTRidOuY=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=mTVfeBWLu5B55Tq5HKDsnZ9jwx7U6qb65Hc/bzypoYs4ftBMmfpFI6XuVbANEsf1s
	 Yyg3iz2LrJiNTNMQz2iezHCkZIbrNN71kJMutuYPhhAi9P/iTGj6V2jHz1bA0M2uN2
	 HCD637ZcmiwG9uyo4YDwUP8G8ywa+O3eSEe5x03Y=
From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/99599] [11/12/13 Regression] Concepts requirement falsely
 reporting cyclic dependency, breaks tag_invoke pattern
Date: Thu, 21 Mar 2024 21:43:46 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: rejects-valid
X-Bugzilla-Severity: normal
X-Bugzilla-Who: redi at gcc dot gnu.org
X-Bugzilla-Status: SUSPENDED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.5
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-99599-4-q8lQAml3Ox@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-99599-4@http.gcc.gnu.org/bugzilla/>
References: <bug-99599-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99599

--- Comment #22 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Here we go, this still fails on trunk, just by making the data member priva=
te:

template<typename T> class indirect {
public:
  template<typename U> requires // (!is_indirect<U>) &&
    requires (const T& t, const U& u) { t =3D=3D u; }
  friend constexpr bool operator=3D=3D(const indirect&, const U&) { return =
false; }

private:
  T* _M_ptr{};
};

indirect<int> i;
bool b =3D i =3D=3D 1;=