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 3970A3870C27; Mon,  9 May 2022 12:21:58 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3970A3870C27
From: "570070308 at qq dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/105510] error: initializer element is not constant
Date: Mon, 09 May 2022 12:21:58 +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: 12.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: 570070308 at qq dot com
X-Bugzilla-Status: UNCONFIRMED
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: 
Message-ID: <bug-105510-4-eYzAUUaqGX@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-105510-4@http.gcc.gnu.org/bugzilla/>
References: <bug-105510-4@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
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Mon, 09 May 2022 12:21:58 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105510

--- Comment #2 from =E3=80=82 <570070308 at qq dot com> ---
(In reply to Richard Biener from comment #1)
> As a workaround it works with
>=20
> struct Test t=3D(struct Test){1, {3, 4}};
>=20
> I don't think it your way of writing is actually valid though.

Yes, I'm not sure that this is a Bug. I meet this error when I'm using macr=
o to
init a struct. For example:
```test.c
struct Test2
{
    long int x;
    long int y;
};

struct Test
{
    long int x;
    struct Test2 t;
};

#define TEST2_INIT(x, y) ((struct Test2){x, y})

#define TEST_INIT(x) ((struct Test){x, TEST2_INIT(1, 2)})

struct Test test=3DTEST_INIT(0);  // error
```=