1// Test that we resolve this case as mandated by the standard, but also 2// warn about it. We choose op char* not because it is a member of B -- 3// the standard says that all conversion ops are treated as coming from 4// the type of the argument -- but because it is non-const. 5// Special Options: -Wconversion 6 7struct A { 8 operator const char *() const { return ""; } 9}; 10 11struct B : public A { 12 operator char *() { return 0; } 13}; 14 15int main() 16{ 17 B b; 18 if ((const char *)b != 0) // WARNING - surprising overload resolution 19 return 1; 20 if ((const char *)(const B)b == 0) 21 return 2; 22 if ((const char *)(const B &)b == 0) 23 return 3; 24} 25