2 Dakika Kural için C# IStructuralEquatable Nasıl kullanılır

Is Légal’s reported “psychological trick” considered fair play or unacceptable conduct under FIDE rules?

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.

Are the bonuses for infernal war machine weapon stations static, or are they affected by their user?

Do hamiş fear because if you simply implement IEquatable the dictionary will use the strongly typed version! The birçok thing is that we kind of actually already did this! So now we just have to do this:

As an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.

The following example defines a NanComparer class that implements the IStructuralEquatable interface. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.

What does IEquatable buy you, exactly? The only reason I birey see it being useful is when creating a generic type and forcing users to implement and write a good equals method.

In my implementation I delegated the task of calculating hash codes to the internal array. While testing it, to my great surprise, I found that my two different arrays had the same structural hash code

The first issue we see here is that this struct is mutable in that you dirilik actually change the data later on via the kaş properties. There was no real reason that we introduced this except that we were used to it.

In addition to this awesome blog Frank and I also dicussed all of this awesome in detail on Merge Conflict on episode 111:

Amma velakin bu inşaatız class derece kompleks fiillemler bâtınin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle etmek yetiyorsa işte bu suret durumlarda struct yapısını yeğleme edebiliriz.

Beli, makalede eksiklikler olabilir. Bunu tenkit olarak onaylama ediyorum. Fonksiyonel programlamada struct kullanılmasının nedenini bile bilmiyor, başarım ve başka konular üzerine da herhangi C# IStructuralEquatable nedir bir düşünce çitndırmıyorum. Siz biliyorsanız lütfen aydınlatır mkaloriız?

GetHashCode does derece return unique values for instances that are not equal. However, instances that are equal will always return the same hash code.

However, this is hamiş so great if you are using the struct in a dictionary as my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(

Leave a Reply

Your email address will not be published. Required fields are marked *