hanchenye-llvm-project/clang/test/Parser/cxx0x-decl.cpp

// RUN: %clang_cc1 -verify -fsyntax-only -std=c++0x %s

// Make sure we know these are legitimate commas and not typos for ';'.
namespace Commas {
  int a,
  b [[ ]],
  c alignas(double);
}