| // PR c++/88337 - Implement P1327R1: Allow dynamic_cast/typeid in constexpr. | |
| // { dg-do compile { target c++17 } } | |
| // Test typeid in a template. | |
| #include <typeinfo> | |
| struct B { virtual void f(); }; | |
| struct B2 : B { }; | |
| template<typename T> | |
| constexpr bool | |
| fn () | |
| { | |
| constexpr B2 b2; | |
| static_assert(&typeid(b2) == &typeid(B2)); // { dg-error ".typeid. is not a constant expression because .b2. is of polymorphic type|non-constant condition" "" { target c++17_down } } | |
| return true; | |
| } | |
| static_assert (fn<int>()); |