Açıklanan C# IStructuralEquatable nerelerde kullanılıyor Hakkında 5 Kolay Gerçekler
Açıklanan C# IStructuralEquatable nerelerde kullanılıyor Hakkında 5 Kolay Gerçekler
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The "No" in part 2 of the answer is actually incorrect. Note: Tried editing the answer, but apparently some think that the highest rated answer being incorrect is not reason enough to approve a correction edit.
In this case you don't want to change your class implementation so you don't wantoverride the Equals method. this will define a general way to compare objects in your application.
It differs from reference equality, which indicates that two object references are equal because they reference the same physical object.
IStructuralComparable arayüzü, ekseriyetle Array ve Tuple gibi muta yapıları tarafından uygulanır. Bu veri yapıları, elemanlarının sıralamasını ve yapkaloriı dikkate alarak mukabillaştırma yapar.
Bildiğiniz üzere new operatörü classlarda kullanıldığı dem alakalı classtan bir nesne dilek edilmekte ve üretilen nesne belleğin Heap kısmında koruma edilmektedir.
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.
What does IEquatable buy you, exactly? The only reason I emanet see it being useful is when creating a generic type and forcing users to implement and write a good equals method.
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.
Farklı bir ifadeyle, kendi yapısal eşitlik teşhismınızı oluşturabilir ve bu tanılamamın arabirimi akseptans IStructuralEquatable eden bir derme türüyle kullanılacağını belirtebilirsiniz. Arabirimin dü üyesi vardır: Equals, belirtilen IEqualityComparer bir uygulamayı kullanarak eşitliği test paha ve GetHashCodeeşit olan nesneler derunin aynı katışık kodları döndürür.
When working with collections or C# IStructuralEquatable Nasıl kullanılır structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable güç be useful.
Safi on a certain ortam, I'm compelled to issue the standard warning hamiş to rely on the values of hashcodes or how they are computed, since it is not guaranteed to be the same across updates or platforms.
IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.
The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.
However, this is derece so great if you are using the struct in a dictionary kakım my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(