How to namespace everything

When creating a library, it is important to namespace everything. Doing so ensures that of the APIs provided by the library cause name collisions with the user's code or with facilities provided by other libraries. In this recipe, we will demonstrate how to do this in our own libraries.

Getting ready

As with all of the recipes in this chapter, ensure that all of the technical requirements have been met, including installing Ubuntu 18.04 or higher and running the following in a Terminal window:

> sudo apt-get install build-essential git cmake

This will ensure your operating system has the proper tools to compile and execute the examples in this recipe. Once you have done this, open a new...