En C# IStructuralEquatable Kullanımı Sırları

En C# IStructuralEquatable Kullanımı Sırları

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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.

Bu sayede, data mimarilarının bâtınindeki verilerin sıralanması veya kontralaştırılması çalışmalemleri özelleştirilebilir ve denetleme edilebilir hale hasılat.

Reference types (read classes) don't benefit bey much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.

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It is used by the third example bey an argument to the Equals(Object, IEqualityComparer) method of the IStructuralEquatable interface that tuples implement. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.

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

So, I am apparently wrong birli unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed takım of values a requirement?

Kısaca anlayacağınız “int” gibi, “bool” üzere boy bos tipli bir değişebilir kurmak istiyorsanız struct yapkaloriı tercih edebilirsiniz.

comparer IEqualityComparer İki nesnenin bedel olup olmadığını kullanmak sinein kullanılacak yöntemi tanılamamlayan nesne.

Bir önceki işlemlemin aynkaloriı AsOrdered extensionı ile kuruluşldığında işlem yeniden koşut olarak kuruluşlır, fakat hatimelar sıralı olabilir.

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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 values, I güç just compare each of them":

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.

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