Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

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However, this is an implementation detail and unless you want to rely on this in your code you cannot create a stable hash code provide an object that implements IStructuralEquatable.

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That is right! When we override Equals we must also override and implement GetHashCode. I am no HashCode expert, but in the same article from Sergey is a snippet of using a ValueTuple to simplify this entire call to 1 line of code just like our fancy ValueTuple Equality above.

IStructuralComparable arayüzü, genellikle Array ve Tuple kabilinden muta konstrüksiyonları aracılığıyla uygulanır. Bu veri kuruluşları, elemanlarının sıralamasını ve yapkaloriı dikkate alarak kontralaştırma yapar.

Bildiğiniz üzere new operatrisü classlarda kullanıldığı devran ilişkin classtan bir nesne istek edilmekte ve üretilen nesne belleğin Heap kısmında koruma edilmektedir.

comparer IEqualityComparer An object that determines whether the current instance and other are equal.

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

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Bu örnekte, C# IStructuralEquatable nerelerde kullanılıyor articles1 ve articles2 dizileri aynı makale başlıklarına aynı tam mevla evetğundan, CompareTo metodu 0 döndürerek bu dizilerin strüktürel olarak tay bulunduğunu belirtir.

Each of your objects should use a hashcode based on the contents of the object. If you have a value type containing 3 ints, use those when computing the hash code. Like this, all objects with identical content will have the same hash code, independent of app domain and other circumstances.

IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.

Default property. The second time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom NanComparer object. Kakım the output from the example shows, the first three method calls return true, whereas the fourth call returns false.

Burada nazarıitibar ederseniz şayet ms.x ve ms.y değmaslahatmeyeceğinden dolayı bir Deep Copy sav konusudur. Eğer referans tipli kuruluşlar olsalardı adidaki kabilinden bir sonuç elde edilecekti ve Shallow Copy kal konusu olacaktı.