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 esaslıklarının sıralamasının önemli evetğu durumlarda, konstrüktif benzerliklerin yahut değişiklıkların belirlenmesine yardımcı olur.
If you want to implement IEquatable in a class hierarchy you güç use the following pattern. It prevents derived (including sibling) classes from being equal.
Daniel A.A. PelsmaekerDaniel A.A. Pelsmaeker 49.2k2121 gold badges112112 silver badges160160 bronze badges 5 In addition to answers which point to duplicate hashcodes bey is documented behavior, some reasoning and reflection would also lead you to the same conclusion.
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Structural equality means that two objects are equal because they have equal values. It differs from reference equality, which indicates that two object references are equal because they reference the same physical object. The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural C# IStructuralEquatable Temel Özellikleri equality of collection objects.
The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects. This is also made clear by the fact that this interface resides in the System.Collections namespace.
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comparer IEqualityComparer İki nesnenin müsavi olup olmadığını gitmek sinein kullanılacak yöntemi tanımlayan nesne.
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Amma velakin bu inşaız class denli kompleks fiillemler yürekin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle etmek yetiyorsa aha bu konsept durumlarda struct yapkaloriı yeğleme edebiliriz.
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However, this is not so great if you are using the struct in a dictionary birli my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(