Hakkında herşey C# IStructuralEquatable Temel Özellikleri

Hakkında herşey C# IStructuralEquatable Temel Özellikleri

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If equality is hamiş needed for the derived class you can 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).

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 .

If you want to implement IEquatable in a class hierarchy you yaşama use the following pattern. It prevents derived (including sibling) classes from being equal.

LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why sevimli't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?

This code technically works, but is sort of a hot mess and is not really maintainable. Anyone using the library would have to write this code birli well. The next logical step would be to just use .Equals on the entire metrics.

The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.

1 My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaved the comparison of the elements to a comparer passed in by the user. But I'm not really sure if I really got it.

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...

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

Task oluşturmanın maslahatlemci üzerinde maliyeti vardır ve çok kısa süren işlemler midein bir task kurmak genelde henüz yavaş çalışan uygulamalara münasebet evet.

C# IStructuralEquatable Defines methods to support the comparison of objects for structural equality.

Now that our struct is immutable the actual issue comes up when you need to compare these values. When I started to write the code to fix the bug I just decided that "hey I have the old C# IStructuralEquatable Temel Özellikleri values, I emanet just compare each of them":

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

Burada nazarıitibar ederseniz şayet ms.x ve ms.y değustalıkmeyeceğinden dolayı bir Deep Copy söz konusudur. şayet referans tipli bünyelar olsalardı süflidaki gibi bir sonuç elde edilecekti ve Shallow Copy laf konusu olacaktı.