A.1. Motivation

Even with the full power of template metaprogramming and the Boost Metaprogramming Library at our disposal, some C++ coding jobs still require a great deal of boilerplate code repetition. We saw one example in Chapter 5, when we implemented tiny_size:

   template <class T0, class T1, class T2>
   struct tiny_size
     : mpl::int_<3> {};