| // PR c++/63540 | |
| // { dg-do compile { target c++11 } } | |
| template <typename T, | |
| typename = decltype(*static_cast<T*>(0) = 0)> int break_it(); | |
| template <typename> int break_it(); | |
| struct Base { | |
| Base(const Base &); | |
| void operator=(Base &&); | |
| }; | |
| struct Derived : Base { | |
| using Base::operator=; | |
| }; | |
| int a = break_it<Derived>(); | |
| Derived v(v); |