Definitive Guide C# IStructuralEquatable Temel Özellikleri için

Definitive Guide C# IStructuralEquatable Temel Özellikleri için

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Keep in mind that for this interface to work correctly, the types within the collection or structure must also implement IStructuralEquatable or provide their own structural equality logic.

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

Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals sevimli't be overridden and always compares by reference.

I'm amazed that the most important reason is not mentioned here. IEquatable was introduced mainly for structs for two reasons:

– Royi Namir Commented Mar 3, 2012 at 18:04 @RoyiNamir user844541's answer is correct, but maybe it is still hard for you to understand without a concrete example, if you are familiar with IEqualityComparer and how it is used by Linq's Distinct(), then after check the source code to see how it implement IStructuralEquatable on referencesource.microsoft.com/#mscorlib/system/collections/…, then you C# IStructuralEquatable Temel Özellikleri will see how it work.

IStructuralEquatable is quite new and unknown, but I read somewhere that it gönül be used to compare the contents of collections and arrays. Am I wrong, or is my .Kupkuru wrong?

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 not kakım good kakım 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.

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

This member is an explicit interface member implementation. It güç be used only when the Array instance is cast to an IStructuralEquatable interface.

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

Bunun semtı aralık, IStructuralComparable arayüzü, programınızı henüz modüler hale getirir ve harf tekrarını azaltır. Farklı data bünyeları ortada yapısal katlaştırma fiillemlerini hiçbir bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.