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// { dg-do assemble  }

// { dg-options "-Wconversion" }

// Test that we resolve this case as mandated by the standard, but also

// warn about it.  We choose op char* not because it is a member of B --

// the standard says that all conversion ops are treated as coming from

// the type of the argument -- but because it is non-const.

struct A  {

  operator const char *() const { return ""; }

};

struct B : public A {

  operator char *() { return 0; }

};

int main()

{

  B b;

  if ((const char *)b != 0)  // { dg-warning "choosing 'B" "B" } surprising overload resolution

  // { dg-warning "for conversion" "conv" { target *-*-* } 19 }

  // { dg-message "note" "note" { target *-*-* } 19 }

    return 1;

  if ((const char *)(const B)b == 0)

    return 2;

  if ((const char *)(const B &)b == 0)

    return 3;

}