Python

Thanks to C++23, constructing containers will become more convenient. Additionally, the ranges library got more new views.

Today, I finish my experiment writing beloved Python functions in C++. So far, I have implemented the Python functions filter, range, and xrange. Today, I have a closer look at the map function and combine the functions map and filter into one function.

In my last post, C++20: Pythonic with the Ranges Library, I started my experiment to implement the beloved Python functions range and filter in C++. Due to two very interesting comments to my last post, I revisit the function range. 

Today, I start an experiment. I want to implement beloved functions in Python in C++ using the ranges library. I'm curious about how it goes.

In my previous post, Recursion, List Manipulation, and Lazy Evaluation, I wrote about the characteristics of functional programming:  The story about lazy evaluation in C++ is short. Sorry to say, but I have forgotten templates. The two advanced techniques, CRTP and expression templates, are based on lazy evaluation.

My favorite example, the dispatch table, shows how nicely the features in modern C++ work together. A dispatch table is a table of pointers to functions. In my case, it is a table of handles for polymorphic function wrappers.