class B0
{
  char m0;

public:
  B0();
};

B0::B0()
  : m0(0)
{}

class B1
{
  unsigned m0;

public:
  B1();
};

B1::B1()
  : m0(0)
{}

class S : public B0, public B1
{
  char m0;

public:
  S();
};

S::S()
  : m0(0)
{}

void
foo(S&)
{}