What this C++ language-knowledge question tests
This is a medium-difficulty question that probes your understanding of C++ syntax, operator precedence, and potential runtime behaviour. It rewards close reading of code and familiarity with how the language actually behaves—not what you might guess it should do.
To answer correctly, you need to parse the statement carefully, understand how operators combine, and identify whether the code compiles and runs, or triggers undefined behaviour, a compile-time error, or an unexpected output. These questions are common in technical interviews because they quickly reveal whether a candidate has practical C++ experience or merely surface-level knowledge.
- Operator precedence and associativity
- Type conversions and implicit casts
- Standard library function signatures
- Undefined vs. well-defined behaviour