C++ 20 introduces modules, a feature that eliminates the problems introduced by traditional header files. The syntax of using a module: import , is quite similar to modern scripting languages like Python and JavaScript. I’m very curious about how import works under C++ and what changes does this new feature bring to modern C++. In this article, I’ll try a simple example with modules.

Setup

The modules feature is quite new, so we need the latest compilers and tools supporting C++ 20 standards.

Here I’d recommend Clang 10. Just download the pre-built binaries and make sure you could use clang++ tools…