inheritance2composition

This is the code that I describe in my blog post discussing refactoring inheritance to composition. You can find the post here: http://giorgosgaganis.com/2016/10/20/refactoring-inheritance-to-composition-a-practical-step-by-step-example

sparsepost

Code base used as example for the sparse array post: https://giorgosgaganis.com/2016/09/17/replacing-hashmap-with-a-sparse-array-as-an-optimization-for-my-tree-string-index/