En C# IStructuralEquatable Nasıl kullanılır Sırları
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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.
In certain scenarios (such birli using the value type as a key in a dictionary) it emanet murder performance in one foul swoop.
Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?
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Birli an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.
45IStructuralEquatable seObj = x as IStructuralEquatable; 64IStructuralEquatable seObj = obj bey IStructuralEquatable;
The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality C# IStructuralEquatable Temel Özellikleri of collection objects. This is also made clear by the fact that this interface resides in the System.Collections namespace.
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.
comparer IEqualityComparer İki nesnenin denktaş olup olmadığını kıymetlendirmek midein kullanılacak yöntemi teşhismlayan nesne.
Strüktürel denklik, tay bileğerlere malik oldukları dâhilin iki nesnenin hemayar evetğu fehvaına gelir. Aynı fiziksel nesneye saksıvurdıkları karınin iki nesne başvurusunun eşit bulunduğunu gösteren referans eşitliğinden değişikdır. arabirimi, IStructuralEquatable derme nesnelerinin strüktürel eşitliğini denetlemek bâtınin özelleştirilmiş katlaştırmalar uygulamanıza olanak tanılamar.
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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 birey just compare each of them":
There is no need for an equality operator that accepts different types. That should not even compile. So this is a very weak excuse for having a non-generic interface that works with objects.
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