The following code crashes g++.  If operator B is removed, g++ will no
longer crash.  The output is provided at the bottom.

--- BEGIN bug.cpp ---
struct A {
  typedef float (&B)[4][4];
  typedef const float (&C)[4][4];
 
  A() { }
  ~A() { }
 
  operator C() const;
  operator B();
};
 
void TestFunc()
{
  (A::C)A();
}                                                                               
--- END bug.cpp ---

--- begin output.txt ---
bug.cpp: In function `void TestFunc ()':
bug.cpp:14: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:http://bugzilla.redhat.com/bugzilla/> for instructions.
--- END output.txt ---