En Kuralları Of C# IStructuralEquatable Kullanımı

En Kuralları Of C# IStructuralEquatable Kullanımı

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

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 object. As the output from the example shows, the first three method calls return true, whereas the fourth call returns false.

Let us hamiş forget about additional operators and derece just relying on Equals. We dirilik implement the == and != operators easily:

Your concern is that Object.GetHashCode() does not provide values that are stable and the concern is very valid birli gönül be seen in C# IStructuralEquatable Nasıl kullanılır the first box headed by Caution in the documentation:

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

When an implementer overrides the virtual Equals method in a struct, the purpose is to provide a more efficient means of performing the value equality check and optionally to base the comparison on some subset of the struct's field or properties.

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)

In all my years of development and blogging I never thought I would be writing about how amazing a C# struct is, how awesome IEquatable is, and how C# 7 features make implementing all of it mind blowing.

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

Bu binaya denli oluşturduğumuz bütün nesnelerin Heap kısmında bulunduğunu söylemiştik. Halbuki Stack kısmında struct örgüsında nesneleri tutabilmekteyiz.

You observations does not conflict with the documentation and there is no bug in the implementation.

Bunun tarafı esna, IStructuralComparable arayüzü, yetişekınızı henüz modüler hale getirir ve harf tekrarını azaltır. Farklı veri yapıları ortada konstrüktif kontralaştırma kârlemlerini yek bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.