What this C++ language-knowledge question tests
This is a tricky C++ question that probes deep familiarity with the language's core features and their sometimes counterintuitive behaviour. It rewards candidates who read code closely and understand how C++ resolves what might appear ambiguous at first glance.
To approach problems like this, walk through the code line by line, paying careful attention to operator precedence, type conversions, and any language-specific gotchas. The answer hinges on understanding a particular C++ behaviour that many candidates overlook or misremember under pressure.
- Operator precedence and associativity
- Type coercion and implicit conversions
- Language-specific quirks and gotchas