[LLVMbugs] [Bug 6702] Wrong scoping for function parameter names?

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Mar 25 09:33:05 PDT 2010


Douglas Gregor <dgregor at apple.com> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID

--- Comment #2 from Douglas Gregor <dgregor at apple.com> 2010-03-25 11:33:05 CDT ---
Nevermind! It's a GCC bug, which EDG is emulating. Turning on EDG's strict mode
confirms that Clang's behavior is indeed correct. We do not attempt to emulate
GCC's behavior, since it's potentially dangerous:

  typedef double a;
  void f(int a, int b = sizeof(a)) ;

here, GCC will give b a default argument value of sizeof(double). Clang (and
EDG in strict mode) correctly reject it.

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