Beginning C++23: From Beginner to Pro

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023

I. Horton, P. Van WeertBeginning C++23https://doi.org/10.1007/978-1-4842-9343-0_11

11. Modules and Namespaces

Ivor Horton¹   and Peter Van Weert²

(1)

Stratford-upon-Avon, Warwickshire, UK

(2)

Kessel-Lo, Belgium

 

While cramming all your code into a single source file is always possible (even for huge programs), a larger code base is far easier to manage if you organize related source code (functions, constants, types, and so on) into logical, composable units, each in their own files. Not least because you and others can then construct different applications out of these same building blocks. As of C++20, the composition unit of choice is a module.

The more your ...