Constraining Variable Templates and Template Aliases
Explore how to apply constraints to variable templates and template aliases in C++. Understand using concepts like std::integral and std::floating_point to restrict template parameters, improving code safety and readability. This lesson helps you learn to prevent invalid template instantiations with practical examples.
We'll cover the following...
We'll cover the following...
As we know, apart from function templates and class templates, we also have variable templates and alias templates in C++. These make no exception of the need to define constraints. The same rules for constraining the template arguments discussed so far apply to these two. In this lesson, we’ll demonstrate them shortly. Let’s start with variable templates.
Constraining variable templates
It’s a typical example to define the PI constant for ...