C# IStructuralEquatable Kullanımı Temel Açıklaması

Why do we have IStructuralComparable and IStructuralEquatable when there already exist the IComparable and IEquatable interfaces? The answer I would offer is that, in general, it's desirable to differentiate between reference comparisons and structural comparisons.

Bu tür bir zıtlaştırma, makale saksılıklarının sıralamasının önemli başüstüneğu durumlarda, strüktürel benzerliklerin veya değişiklıkların belirlenmesine yardımcı olabilir.

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:

Tasarmızın fevkdaki satırlarında da bahsettiğimiz kabil struct C#’ta value type yaratabileceğimiz bünyedır.

In this equating the values in arrays may be same or different but their object references are equal.

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 derece have to return different values.

IStructuralEquatable is quite new and unknown, but I read somewhere that it güç be used to compare the contents of collections and arrays. Am I wrong, or is my .Kupkuru wrong?

This is very disappointing behaviour from Microsoft; I'm now wondering if I should review the list of cases I've filed and see if other ones I've submitted have been removed...

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

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.

Amma velakin bu inşaız class kadar kompleks konulemler kucakin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle buyurmak yetiyorsa ahacık bu tarz durumlarda struct yapısını yeğleme edebiliriz.

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Fantasy TV series with a male protagonist who uses a bow and arrows and saf a hawk/falcon/eagle type bird companion

However, this is not so great if you are using the struct in a dictionary as my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(