[Bug c++/61355] New: gcc doesn't normalize type in non-type template parameters

[Bug c++/61355] New: gcc doesn't normalize type in non-type template parameters

[vanyacpp at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61355

            Bug ID: 61355
           Summary: gcc doesn't normalize type in non-type template
                    parameters
           Product: gcc
           Version: 4.8.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vanyacpp at gmail dot com

template<class T, T I>
struct X {
};

int test() {
    X<int(), test> x;
}

GCC rejects this code with a message:

3.cpp: In function ‘int test()’:
3.cpp:6:18: error: ‘int()’ is not a valid type for a template non-type
parameter
     X<int(), test> x;
                  ^
3.cpp:6:21: error: invalid type in declaration before ‘;’ token
     X<int(), test> x;
                     ^

I believe type int() should be normalized to int (*)().
>From gcc-bugs-return-452797-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 29 13:44:06 2014
Return-Path: <gcc-bugs-return-452797-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Delivered-To: listarch-gcc-bugs@gcc.gnu.org
Received: (qmail 2754 invoked by alias); 29 May 2014 13:44:05 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Delivered-To: mailing list gcc-bugs@gcc.gnu.org
Received: (qmail 2713 invoked by uid 48); 29 May 2014 13:44:01 -0000
From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/61355] gcc doesn't normalize type in non-type template parameters
Date: Thu, 29 May 2014 13:44:00 -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: 4.8.2
X-Bugzilla-Keywords: rejects-valid
X-Bugzilla-Severity: normal
X-Bugzilla-Who: redi at gcc dot gnu.org
X-Bugzilla-Status: NEW
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: keywords bug_status cf_reconfirmed_on everconfirmed
Message-ID: <bug-61355-4-I9dQexHxdu@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-61355-4@http.gcc.gnu.org/bugzilla/>
References: <bug-61355-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2014-05/txt/msg02489.txt.bz2
Content-length: 464

https://gcc.gnu.org/bugzilla/show_bug.cgi?ida355

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-05-29
     Ever confirmed|0                           |1

[Bug c++/61355] gcc doesn't normalize type in non-type template parameters

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61355

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |support at neoee dot net

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 82773 has been marked as a duplicate of this bug. ***

[Bug c++/61355] gcc doesn't normalize type in non-type template parameters

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61355

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zhonghao at pku dot org.cn

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 86251 has been marked as a duplicate of this bug. ***

[Bug c++/61355] gcc doesn't normalize type in non-type template parameters

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61355

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ppalka at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |ppalka at gcc dot gnu.org
             Status|NEW                         |ASSIGNED

[Bug c++/61355] gcc doesn't normalize type in non-type template parameters

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61355

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:

https://gcc.gnu.org/g:fba228e259dd5112851527f2dbb62c5601100985

commit r12-4238-gfba228e259dd5112851527f2dbb62c5601100985
Author: Patrick Palka <ppalka@redhat.com>
Date:   Thu Oct 7 16:39:16 2021 -0400

    c++: NTTP with array/function type after substitution [PR61355]

    We're performing the [temp.param]/10 adjustment at parse time but not
    also at substitution time.

            PR c++/61355

    gcc/cp/ChangeLog:

            * pt.c (convert_template_argument): Perform array/function to
            pointer conversion on the substituted type of an NTTP.

    gcc/testsuite/ChangeLog:

            * g++.old-deja/g++.pt/nontype5.C: Adjust.
            * g++.dg/template/param6.C: New test.

[Bug c++/61355] gcc doesn't normalize type in non-type template parameters

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61355

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED
   Target Milestone|---                         |12.0

--- Comment #5 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Fixed for GCC 12.

[Bug c++/61355] gcc doesn't normalize type in non-type template parameters

[vanyacpp at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61355

--- Comment #6 from Ivan Sorokin <vanyacpp at gmail dot com> ---
(In reply to Patrick Palka from comment #5)
> Fixed for GCC 12.

Thanks!