Combining a lookup with a conversion

What this C++ code-reading question tests

This is a medium-difficulty code-comprehension question that combines two fundamental C++ concepts: lookup and type conversion. It asks you to trace through a code snippet and predict its output, which requires careful attention to how the language resolves names and transforms types.

To answer correctly, you need to understand the order in which C++ performs lookup (which declarations are visible and how precedence works) and how implicit or explicit conversions apply when values are used in expressions or passed to functions. These skills matter in interview settings because they separate candidates who have read production C++ code from those who have only written toy programs.

• Name lookup and scope resolution
• Implicit type conversion and operator overloading
• Function call resolution and argument matching