Author Archives: Pierre IRRMANN

Functional Inspiration – A simple Option type

Posted on 26/02/2013 by Pierre IRRMANN

In F#, the option type is a built-in Discriminated Union type which allows to handle nicely the fact that an expression can represent some value or none. In C#, we have almost this construct when we use the Nullable<T>, but … Continue reading →

Posted in Functional Inspiration | Tagged , | Comments Off

Elitism ? Or just raising the bar ?

Posted on 26/01/2013 by Pierre IRRMANN

Last Thursday, I’ve attended an open forum organised by ALT.NET France user group, about the Software Craftsmanship Community and the “Fier d’être développeur” (“Proud to be dev”) groups, in order to compare their intents and try to explain why they … Continue reading →

Posted in Practices | Tagged , , | Comments Off

RPSLS — Rock Paper Scissors Lizard Spock

Posted on 22/11/2012 by Pierre IRRMANN

Let’s start with a tweet from earlier today : Anyone bored and have an android phone?play.google.com/store/apps/det… — Leonard Hofstadter (@TheRealLeonardH) November 22, 2012 If you follow the link, you’ll get to a Google Play application that allows you to play … Continue reading →

Posted in Uncategorized | Comments Off

Cartesian products in LINQ (fluent syntax)

Posted on 01/11/2012 by Pierre IRRMANN

Have you ever tried to combines sequences in order to build Cartesian products in LINQ ? This is really easily achieved using the query expressions syntax, writing for instance : var ints = Enumerable.Range(1, 4); var longs = Enumerable.Range(1, 3).Select(i … Continue reading →

Posted in LINQ | Tagged , , | Comments Off

Polymorphic enums in C#, implementation revealed

Posted on 29/09/2012 by Pierre IRRMANN

How can we implement a polymorphic enum to mimic the Java ones ? In a previous post, as an answer to @cyriux’s one, I showed how we could try to use a polymorphic enum in C# in order to mimic … Continue reading →

Posted in Syntax Puzzles | Tagged , , , | Comments Off