Two typeids

What this C++ type identity question tests

This is a Cracked-level C++ question that probes your understanding of type identity and how the language's type system represents types at runtime. It requires close reading of a code snippet and precise knowledge of C++ semantics around type comparison.

Questions in this category often appear in technical interviews where candidates need to distinguish between compile-time type equivalence, runtime type information (RTTI), and the behaviour of standard library tools for type inspection. The question rewards understanding not just what a piece of code does, but why the language produces that specific result.

• Type identity and type equivalence in C++
• The typeid operator and std::type_info
• How const, pointer, and reference qualifiers affect type identity
• Comparing type information across different scopes and declarations