C# IStructuralEquatable Kullanımı Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable Kullanımı Için Adım Haritaya göre Yeni Adım

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If two objects compare kakım equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare bey equal, the GetHashCode methods for the two object do not have to return different values.

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This is really amazing code and works great for .Kemiksiz Standard libraries. If you are in a .Kemiksiz 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. Kakım the output from the example shows, the first three method calls return true, whereas the fourth call returns false.

Although I think the gains from hamiş boxing will be less than the cost for having CanEqual. In that case you should seal your types and you no longer need CanEqual. Sealing also özgü some performance benefits.

comparer IEqualityComparer An object that determines whether the current instance and other are equal.

Aynı mesleklemi her bir iterasyon muhtevain bir task oluşturup yapabiliyorken sebep Koşut bir döngü oluşturmalıyız?

I've noticed these two interfaces, and several associated classes, have been added in .Safi 4. They seem a bit superfluous to me; I've read several blogs about them, but I still kişi't figure out what sorun they solve that was tricky before C# IStructuralEquatable Nasıl kullanılır .NET 4.

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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.

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

Defines methods to support the comparison of objects for structural equality. Structural equality means that two objects are equal because they have equal values.

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

Bunun yanı düzen, IStructuralComparable arayüzü, yetişekınızı daha modüler hale getirir ve şifre geneını azaltır. Farklı done örgüları beyninde strüktürel huzurlaştırma konulemlerini bir bir yerde yönetebilir ve kodunuzun bakımını kolaylaştırabilirsiniz.