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From: "anders.granlund.0 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/67048] New: GCC rejects well-formed program using empty anonymous enum specifier in a variable declaration
Date: Wed, 29 Jul 2015 03:15:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67048

            Bug ID: 67048
           Summary: GCC rejects well-formed program using empty anonymous
                    enum specifier in a variable declaration
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: anders.granlund.0 at gmail dot com
  Target Milestone: ---

Consider the following well-formed program (prog.cc):

enum {} x;
int main() {}

Compile it with the following command line:

g++ prog.cc -std=c++14 -pedantic-errors

The following error message is given. I expected to get no error messages since
the program is well-formed.

prog.cc:1:6: error: ISO C++ forbids empty anonymous enum [-Wpedantic]
 enum {} x;
      ^

I have tried this with gcc HEAD 6.0.0 20150728 here:

http://melpon.org/wandbox/permlink/BXXfLL4WOU5lBOfk