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 904993858C51; Tue, 17 May 2022 10:28:43 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 904993858C51
From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/61469] language feature: Support for enum underlying type
Date: Tue, 17 May 2022 10:28:43 +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: unknown
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: egallager 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: cc
Message-ID: <bug-61469-4-ajay3eiaBz@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-61469-4@http.gcc.gnu.org/bugzilla/>
References: <bug-61469-4@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: Tue, 17 May 2022 10:28:43 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D61469

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |egallager at gcc dot gnu.o=
rg

--- Comment #8 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #1)
> (In reply to nick87720z from comment #0)
> > Unlike C++, where type is specified as "enum class type ..."
>=20
> That's not how C++ does it, the correct syntax is:
>=20
>   enum foo_type : int { foo, bar, baz };

clang supports this as an extension in C:

$ clang -Weverything enum.c
warning: include location '/usr/local/include' is unsafe for cross-compilat=
ion
[-Wpoison-system-directories]
enum.c:1:6: warning: enumeration types with a fixed underlying type are a C=
lang
extension [-Wfixed-enum-extension]
enum : int { a }; int main(void) { return 0; }
     ^~~~~
2 warnings generated.

vs. with gcc:

$ /usr/local/bin/gcc enum.c
enum.c:1:6: error: expected '{' before ':' token
    1 | enum : int { a }; int main(void) { return 0; }
      |      ^=