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 87C743858D3C; Mon, 20 Nov 2023 05:05:48 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 87C743858D3C
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1700456748;
	bh=vjhaaa5HJ0mvqffNHDoK/q0289qh5lBUdvcxMDj0bHk=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=x3PbuI9VEu0b00BARFql+CNCHGaGaEhpe4n3qIsXQPznzLbLxD2kbmo+m3iMIcfLA
	 jJICnLgzihl/ezxVwO9vhyTLVZLXNfd1u8tT4+BiftXuABh/HDrN1byLrfSqbMpOvE
	 9Z2/q1KEoc0zZsHKkJVcFZ1dWm8fr4VmCmh5zNQ8=
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/112594] Non-type template parameter created with converting
 constructor sometimes has original type
Date: Mon, 20 Nov 2023 05:05:48 +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: 14.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_status everconfirmed cf_reconfirmed_on
Message-ID: <bug-112594-4-iRlKSKT6we@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-112594-4@http.gcc.gnu.org/bugzilla/>
References: <bug-112594-4@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=3D112594

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-11-20

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

This fails in a similar way so it is not related to i being static here:
```

    template<typename T>
    concept C =3D true;

    struct n {
        constexpr n(int a) : i(a) {}
        int i;
    };

    template<n N>
    using get_n_i_type =3D decltype(N.i);

    template<int X>
    int f() {
        using iii =3D get_n_i_type<X>;
    #if 1  // Change to 0 and this compiles
        static_assert(C<iii>);
    #endif
        return iii{};
    }

    template int f<3>();
```


I will file another related bug seperately which seems like a regression on=
 the
trunk.=