Search Results

I could create an interface and a concretion, but then the implementation isn't portable There's a design trade-off between using a sealed class (or a class with a finite number of subclasses) an …

If I'm understanding you correctly, you're trying to find a statically-typed way to say "a value of type Section can be either a value of type Highlights, Chart, or Tweets". There are many terms for t …

From Comparing Floating Point Numbers, 2012 Edition There is no silver bullet. You have to choose wisely. If you are comparing against zero, then relative epsilons and ULPs based comparisons …

This is fairly common in ML-style languages like Standard ML/OCaml/F#/Haskell where it's much easier to create the wrapper types. It provides you with two benefits: It allows a piece of code to enfo …

From your comments it seems you have something like this: Send(Data data, Address address, A a, B b, C c) { ... } Send(Data data, Address address, A a, D d, E e, F f) { ... } Send(Data data, Addres …

Scala allows this and calls the resulting type a Compound Type. Your example would look something like this in Scala: def seekAndRead(stream: IReaderStream with ISeekable) { stream.seek(5) // OK …

There is a deeper issue here: the fact that C# and Java insist most/all types must be distinguishable by name rather than structure: e.g. class MyPoint2D and class YourPoint2D are separate types even …

It seems to me on 2nd through that it's meant to be a class that should hold state, and not know how to call out to the .NET Framework to find info. Spot on. What you have is just a data containe …

Your first link does address the issue - it's laziness combined with side effects that is problematic, because the order of side effects matters. For pure computations, the main thing that changes is …

Conditional compilation effectively creates multiple versions of the code base. That's exactly the purpose of version control branches. The other alternative is put whatever code needs to vary in its …

It seems like the presentation and data should be defined in separate classes, but I can't think of a good way to do this while maintaining the ability to traverse the tree. Any suggestions? The …

Disclaimer: My C# experience is probably less than 8 hours total so the syntax that follows may not be accurate. So, somewhere between Device1.Method1; and Device2.Method3; When switching between …

A simple solution would be to make them immutable and produce new world objects for the next world state. This gives the Level complete control over the world's state without allowing objects to inter …

You can't. That's the thing about interfaces - they allow anyone to implement them at any time. There's an infinite number of potential implementations for your interface, and you can't force any of t …

I would assume this to be a data structure. Specifically, it's a record. Like a method to add new offers because there's more logic in doing so than just adding it to the list? Is there som …