Boost C++ Application Development Cookbook - Second Edition

How to do it...

We can rewrite the function like this:

#include <boost/array.hpp>typedef boost::array<char, 4> array4_t;array4_t& vector_advance(array4_t& val);

Here, boost::array<char, 4> is just a simple wrapper around an array of four char elements.

This code answers all the questions from our first example and is much more readable than the code from the second example.