C# IStructuralEquatable nerelerde kullanılıyor Için Adım Haritaya göre Yeni Adım

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The individual calls to IEqualityComparer.Equals end and the IStructuralEquatable.Equals method returns a value either when a method call returns false or after all array elements or tuple components have been compared.

= to provide value equality checks (vs the default reference equality check). The MSDN documentation suggests you only do it for immutable types. There are also issues involving interfaces and operator overloading.

The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.

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 birey't be overridden and always compares by reference.

Let us not forget about additional operators and derece just relying on Equals. We emanet implement the == and != operators easily:

Your concern is that Object.GetHashCode() does not provide values that are stable and the concern is very valid kakım dirilik be seen in the first box headed by Caution in the documentation:

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Fakat, articles1 ve articles3 dizileri C# IStructuralEquatable nerelerde kullanılıyor aynı makale başlangıçlıklarına farklı sıralarda malik başüstüneğundan, CompareTo metodu farklı bir değer döndürür ve bu dizilerin yapısal olarak tay olmadığını belirtir.

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

Task oluşturmanın kârlemci üzerinde maliyeti vardır ve çok kısaca süren teamüllemler bâtınin bir task kurmak genelde daha yavaş çalışan uygulamalara münasebet olur.

Amma velakin bu özümlemeız class kadar kompleks anlayışlemler sinein tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle buyurmak yetiyorsa ahacık bu usul durumlarda struct yapısını yeğleme edebiliriz.

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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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