Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

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However, this is an implementation detail and unless you want to rely on this in your code you cannot create a stable hash code provide an object that implements IStructuralEquatable.

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Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?

Kakım far as I see this is only exposed through the StructuralComparisons class. The only way I kişi figure out to make this useful is to make a StructuralEqualityComparer helper class as follow:

Let us hamiş forget about additional operators and not just relying on Equals. We yaşama implement the == and != operators easily:

The generic tuple classes (Tuple, Tuple, Tuple, and so on) and the Array class provide explicit implementations of the IStructuralEquatable interface. By casting (in C#) or converting (in Visual Basic) the current instance of an array or tuple to an IStructuralEquatable interface value and providing your IEqualityComparer implementation as an argument to the Equals method, you hayat define a custom equality comparison for the array or collection.

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

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Ray BooysenRay Booysen 29.6k1414 gold badges8686 silver badges111111 bronze badges 6 so when you are dealing with objects, is == assumed to only mean the exact same memory address (same instance)

If you read this entire post and are thinking wow that is a lot of code and steps to remember then do derece fear because Dustin told me and showed me that Visual Studio will generate all of this for you!!!!! Check this out:

To achieve this, employee objects with matching SSN properties would be treated bey logically equal, even if they were hamiş structurally equal. Share Improve this answer Follow

The example on MSDN gives 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

Default property. The second time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom NanComparer C# IStructuralEquatable Temel Özellikleri object. Birli the output from the example shows, the first three method calls return true, whereas the fourth call returns false.

Burada nazarıitibar ederseniz şayet ms.x ve ms.y değhizmetmeyeceğinden dolayı bir Deep Copy kelam konusudur. şayet referans tipli dokumalar olsalardı kötüdaki üzere bir sonuç elde edilecekti ve Shallow Copy nazire konusu olacaktı.