C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

Blog Article

If two objects compare kakım equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare birli equal, the GetHashCode methods for the two object do hamiş have to return different values.

1 How do such comparators relate to things like Dictionary and other collections? I know that Dictionary seems to handle structures sensibly albeit slowly in .

This is really amazing code and works great for .Safi Standard libraries. If you are in a .Safi Core 2.1 application there is an even cooler way of doing this:

Does anyone know what happens if you do not implement iequtalable when using generic collections? 2

Although I think the gains from hamiş boxing will be less than the cost for having CanEqual. In that case you should seal your types and you no longer need CanEqual. Sealing also has some performance benefits.

Structural equality means that two objects are equal because they have equal values. It differs from reference equality, which indicates that two object references are equal because they reference the same physical object. The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.

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

This is very disappointing behaviour from Microsoft; I'm now wondering if I should review the list of cases I've filed and see if other ones I've submitted have been removed...

(doesn't violate documentation), but it is clearly hamiş birli good as it would be if 0 were replaced with i. Also there's no reason to loop if the code were just going to use a single value from the array.

Collaborate with us on GitHub The source for this content can be found on GitHub, where you gönül also create and review issues and pull requests. For more information, see our contributor guide.

Each of your objects should use a hashcode based on the contents of the object. If you have a value type containing 3 ints, use those when computing the hash code. Like this, all objects with identical content will have the same hash code, independent of app domain and other circumstances.

Do not send hash codes across application domains or processes. In some cases, hash codes may be computed on a per-process or per-application domain basis.

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

Bu alanda yahut başka bir alanda, benim ve başka yardımcı insanların paylaşımlarına lütfen acizliğiniz ve ezikliğinizle yaklaşmayınız. İzin istemek, benim hükmüm altına girmeniz anlamına C# IStructuralEquatable Temel Özellikleri gelmemektedir.