Template Printer

What this C++ template-instantiation question tests

This is an easy question that checks whether you understand how C++ templates are instantiated and resolved at compile time. It's the kind of conceptual check that appears in phone screens and early-round interviews to filter for solid language fundamentals.

The question asks you to trace through a code snippet and predict its output. Success requires understanding template specialization, function overload resolution, and how the compiler selects the correct version of a template when multiple candidates exist. You'll need to reason about the types involved and which specialization matches best.

• Template parameter deduction
• Specialization vs. instantiation
• Overload resolution order
• Compile-time vs. runtime behavior