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Easy · template_metaprogramming · Quant Developer interview question · auto-return, return-type-deduction, template-functions, c++14, c++17, arithmetic
C++14 auto return type deduction enables the compiler to infer a function's return type, simplifying generic programming. In quantitative finance, this is essential for writing clean, reusable arithmetic functions that operate on diverse numeric types like prices, volumes, and PnL. This technique is a cornerstone of generic arithmetic in modern high-frequency trading (HFT) codebases. Task Implement three template functions using auto return type deduction to perform common order-related computa