En C# IStructuralEquatable Kullanımı Sırları

En C# IStructuralEquatable Kullanımı Sırları

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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.

Bu tür bir zıtlaştırma, makale mirlıklarının sıralamasının önemli evetğu durumlarda, yapısal benzerliklerin yahut farklılıkların belirlenmesine yardımcı kabil.

Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:

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 emanet't be overridden and always compares by reference.

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

Your concern is that Object.GetHashCode() does hamiş provide values that are stable and the concern is very valid bey birey be seen in the first box headed by Caution in the documentation:

1 My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaved the comparison of the elements to a comparer passed in by the user. But I'm hamiş really sure if I really got it.

In my implementation I delegated the task of calculating hash codes to the internal array. While testing it, to my great surprise, I found that my two different arrays had the same structural hash code

comparer IEqualityComparer İki nesnenin müsavi olup olmadığını gitmek yürekin kullanılacak yöntemi C# IStructuralEquatable Kullanımı tanımlayan nesne.

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

Safi on a certain ortam, I'm compelled to issue the standard warning not to rely on the values of hashcodes or how they are computed, since it is hamiş guaranteed to be the same across updates or platforms.

The contract of Equals differs from that of IStructuralEquatable, in that it indicates whether 2 objects are logically equal.

Is there any legal justification for content on the web without an explicit licence being freeware? more hot questions

The Equals method supports custom structural comparison of array and tuple objects. This method in turn calls the comparer object's IEqualityComparer.Equals method to compare individual array elements or tuple components, starting with the first element or component.