C# IStructuralEquatable Kullanımı - Genel Bakış

Wiki Article

If equality is derece needed for the derived class you güç skip IEquatable but you need to override the CanEqual to prevent it being equal with base classes (unless of course they should be considered equal).

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?

IStructuralEquatable is an interface in C# that defines methods for determining whether two objects are structurally equal. It's often used in scenarios where you want to compare the structure of objects, typically within collections, and not just compare references or individual values.

You generic method saf a type parameter T but the type is derece part of the signature of the function so how is T supposed to be used in the function? Anyway, you kişi use .Kemiksiz tuples or anonymous types to create hash codes by combining values but I am not sure this answers your question.

Your browser isn’t supported anymore. Update it to get the best YouTube experience and our latest features. Learn more

So, I am apparently wrong kakım unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed seki of values a requirement?

I've noticed these two interfaces, and several associated classes, have been added in .Kupkuru 4. They seem a bit superfluous to me; I've read several blogs about them, but I still gönül't figure out what sorun they solve that was tricky before .Kemiksiz 4.

Reading through the excellent blog post by Sergey on struct equality performance he mentions that the default implementations are pretty slow and using boxing for each member. Additionally, he mentions that a memory comparison may hamiş give you the correct results in this super simple example:

When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable hayat be useful.

C# IStructuralComparable Determines whether the current collection object precedes, occurs in the same position birli, or follows another object in the sort order.

The example on MSDN gives C# IStructuralEquatable nedir part of the answer here; it seems to be useful for heterogeneous equality, rather than homogeneous equality - i.e. for testing whether two objects (/values) of potentially different types

GetHashCode does hamiş return unique values for instances that are hamiş equal. However, instances that are equal will always return the same hash code.

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