Question preview
Template sum 2 is a easy quant interview question on language knowledge in Cpp, asked at Google.
Join to unlock this question, detailed solutions, and our complete library of quant finance interview prep.
This is an easy C++ language-knowledge question that probes understanding of template instantiation and how the compiler resolves template definitions. It is the kind of question Google uses to ensure candidates have solid fundamentals in C++ template mechanics, not just library usage.
To answer correctly, you need to trace through the template definition, understand how arguments are substituted, and predict what code the compiler will generate. The question rewards careful reading of the code and mental execution—no external tools needed, but attention to detail is essential.