Creating an output range

As input ranges serve as generators or iterators over data, output ranges serve as sinks for data. Output ranges may print data, perform one-way algorithms (such as message digests or hashes), collect data, or whatever else you can achieve with its required put method.

Here, we'll write an output range that prints the arrays it receives out in hexadecimal format. We'll write sixteen bytes per line, always ending with a new line.

How to do it…

Let's create an output range by executing the following steps:

1. Create a struct with a put method that takes the data we want to consume. As our hex dumper takes any kind of array and doesn't store it, we want in void[]. The put method will perform the printing we need.

2. Add any data we need to preserve between calls to put. To format our lines, we'll need to keep a count of how many items we've outputted so far.

3. Add other functions we need, such as destructors, constructors, or other methods. We want to ensure there's always a new...