| // Test that a synthesized op= can override one from a base. | |
| // { dg-do run } | |
| struct B; | |
| struct A | |
| { | |
| virtual B& operator=(const B&); | |
| }; | |
| struct B: A | |
| { | |
| B(int i): i(i) { } | |
| int i; | |
| // implicitly-declared op= | |
| }; | |
| B& A::operator=(const B& b) { return static_cast<B&>(*this); } | |
| int main() | |
| { | |
| B b1 (123); | |
| B b2 (0); | |
| A& ar = b1; | |
| ar = b2; | |
| return b1.i; | |
| } |