Recently, I stumbled upon the use of std::print in C++ code, which intrigued me. I wondered how C++ had adopted the printf mechanism from C, especially since there is cout. After looking at a few examples, I realized the brilliance of this new method, which provides a more concise and convenient formatting output than cout … Read more
(Search Attributes: C++ Variadic Templates Tutorial, Template Metaprogramming in Practice, Application of Fold Expressions) Three Stages of Technical Evolution 1. C-style Approach: Flexible but Risky #include <cstdarg> double cstyle_sum(int count, …) { va_list args; va_start(args, count); // Manual maintenance of parameter count double total = 0; for(int i=0; i<count; i++) { double num = va_arg(args, … Read more
In the world of C++, handling variable arguments is like a technological evolution from the “Stone Age” to the “Interstellar Age”. From the perilous C-style techniques to type-safe template magic, and finally to the concise and elegant fold expressions, each method represents different programming philosophies and characteristics of their respective eras. Today, let us embark … Read more