https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114388
--- Comment #10 from Jiang An <de34 at live dot cn> --- Broken down into two smaller examples: https://godbolt.org/z/YhK7PqE6s ``` #include <cstdio> #include <typeinfo> int main() { struct B { B() {} virtual ~B() { std::puts("C++11"); } }; struct C { B b; }; typeid(C().b); // unevaluated in C++98, evaluated in C++11 } ``` https://godbolt.org/z/on76q4Mx5 ``` #include <cstdio> int main() { struct B { B() {} B(const B&) { std::puts("C++98"); } }; struct D : B {}; struct BB { B b; }; struct DD { D d; }; true ? BB().b : DD().d; // additional copy in C++98, no copy or move in C++11 } ``` CWG2887 (https://cplusplus.github.io/CWG/issues/2887.html) is related.
