The C++20 standard added Ranges, which are an abstraction of containers that allow the program to operate uniformly on containers' elements. Furthermore, Ranges represent a very modern and concise way of writing expressive code. We'll learn that this expressiveness is even greater with pipes and adaptors.
Learning how Ranges work
How to do it...
In this section, we'll write a program that will help us learn the main use case of Ranges in conjunction with pipes and adaptors. Given an array of temperatures, we want to filter out the negative ones and convert the positives (warm temperatures) into Fahrenheit:
- On a new source file, type the following code. As you can see, two lambda functions and a for ...
