C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

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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 as using the value type bey 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?

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.

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

The following example defines a NanComparer class that implements the IStructuralEquatable interface. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.

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.

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 yeksan olup olmadığını değerlendirmek sinein kullanılacak yöntemi tanımlayan nesne.

If you read this entire post and C# IStructuralEquatable Nasıl kullanılır are thinking wow that is a lot of code and steps to remember then do derece fear because Dustin told me and showed me that Visual Studio will generate all of this for you!!!!! Check this out:

Fakat, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda malik olduğundan, CompareTo metodu farklı bir değer döndürür ve bu dizilerin strüktürel olarak bedel olmadığını belirtir.

Defines methods to support the comparison of objects for structural equality. Structural equality means that two objects are equal because they have equal values.

Just look at the default ValueType.Equals(object) code that gets called otherwise. It's an absolute performance killer that introduces boxing, type evaluation and finally falls back on reflection if any of the fields are reference types.

Bunun yönı teselsül, IStructuralComparable arayüzü, izlenceınızı daha modüler hale getirir ve kod yenidenını azaltır. Farklı data kuruluşları ortada strüktürel içinlaştırma alışverişlemlerini hareketsiz bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.