Modularisation – coupling and cohesion

This is related to the second of the things requested by Jesper, which was encapsulation.  Encapsulation is a tool to use when designing software.  It’s a bit abstract, and I don’t think people always agree on what it means.  To me, encapsulation is part of the bigger term modularisation, which doesn’t immediately help because it’s … Continue reading Modularisation – coupling and cohesion

Exceptions 3: Where to put catch blocks and handle exceptions

This is the third article in a series about exceptions: BasicsTypes and filteringWhere to put catch blocks and handle exceptionsFinishing up Where your catch blocks are and where exceptions are dealt with matters - probably best to avoid sticking a pin into your code randomly to choose the spot.Image credit The location of catch blocks … Continue reading Exceptions 3: Where to put catch blocks and handle exceptions

Recursion and iteration – loop unrolling

This article is part of a series on recursion and iteration: Introduction to iterationIntroduction to recursionMutual recursion and tail recursionBlurring the linesLoop unrolling In this article I will talk about loop unrolling, and the wonder / horror that is Duff's device. Image credit Loop unrolling Loop unrolling is something to do only when you're very … Continue reading Recursion and iteration – loop unrolling

Recursion and iteration – blurring the lines

This article is part of a series on recursion and iteration Introduction to iterationIntroduction to recursionMutual recursion and tail recursionBlurring the linesLoop unrolling In this article I will look at how the lines between iteration and recursion can get a bit blurry. This breaks down into three areas: Iteration = fast, recursion = slow isn't … Continue reading Recursion and iteration – blurring the lines

Recursion and iteration – mutual recursion and tail recursion

This is part of a series of articles about iteration and recursion. Introduction to iterationIntroduction to recursionMutual recursion and tail recursionBlurring the linesLoop unrolling I have covered the basics of recursion in a previous article. In this article I will go onto two more advanced, rare and obscure versions of recursion - mutual recursion and … Continue reading Recursion and iteration – mutual recursion and tail recursion

Recursion and iteration – an introduction to recursion

This is the second article in a series about recursion and iteration. Introduction to iterationIntroduction to recursionMutual recursion and tail recursionBlurring the linesLoop unrolling I will assume that you have already read the article on iteration, and this article will focus on recursion. Like iteration, recursion is a way of repeatedly doing the same or … Continue reading Recursion and iteration – an introduction to recursion