[llvm-bugs] [Bug 39979] New: syntax error for enum type name in _Generic

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=39979

            Bug ID: 39979
           Summary: syntax error for enum type name in _Generic
           Product: clang
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: anders.granlund.0 at gmail.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org,
                    neeilans at live.com, richard-llvm at metafoo.co.uk

I tried to compile the following program (prog.c):

  int main()
  {
    _Generic(0, enum { e }: 0, default: 0);
  }

using the following command line:

  clang prog.c -std=c11 -pedantic-errors "-w"

The expected behaviour is that the code should compile without errors, but I
get some syntax error.

Note that this works in gcc.

Link to online compiler:

  https://wandbox.org/permlink/uUHq74Z4sn8wisgX

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