void stat(struct stat*) { }

namespace ns
{
  using ::stat;
  struct stat { };
}


This should be ill-formed, because the function declaration also adds "struct stat" to the global namespace, so the using-declaration adds that to ns, and defining struct ns::stat should conflict.


Clang says:

using.cc:6:3: error: declaration conflicts with target of using declaration already in scope
  struct stat { };
  ^
using.cc:1:18: note: target of using declaration
void stat(struct stat*) { }
                 ^
using.cc:5:11: note: using declaration
  using ::stat;
          ^
1 error generated.


and EDG says:

"using.cc", line 6: error: class "stat" cannot be defined in the current scope
    struct stat { };
           ^

1 error detected in the compilation of "using.cc".