Seeing Real-World Examples of Using Type Traits

In the previous lesson of the section, we explored the various type traits that the standard library provides. It’s difficult and unnecessary to find examples for each and every type trait. However, it’s worth showcasing some examples where multiple type traits can be used for solving a problem. We’ll do this next.

Implementing a copy algorithm

The first example problem we’ll take a look at is a possible implementation for the std::copy standard algorithm (from the <algorithm> header). Keep in mind that what we’ll see next is not the actual implementation but a possible one that helps us learn more about the use of type traits. The signature of this algorithm is as follows: