Worth noting that the article is from 2007. As of C++11 (from 12 years ago) you ...

sgerenser 10 months ago | parent | context | favorite | on: Nobody Understands C++: Intro (2007)

Worth noting that the article is from 2007. As of C++11 (from 12 years ago) you can write the equivalent code with just C++ and the standard library (range-based for loops, std:function).