Benim C# IStructuralEquatable Nasıl kullanılır Başlarken Çalışmak

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In certain scenarios (such bey using the value type birli a key in a dictionary) it güç murder performance in one foul swoop.

Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:

IStructuralEquatable is an interface in C# that defines methods for determining whether two objects are structurally equal. It's often used in scenarios where you want to compare the structure of objects, typically within collections, and derece just compare references or individual values.

Although I think the gains from not boxing will be less than the cost for having CanEqual. In that case you should seal your types and you no longer need CanEqual. Sealing also özgü some performance benefits.

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 equality of collection objects.

The IEquatable implementation will require one less cast for these classes and kakım a result will be slightly faster than the standard object.Equals method that would be used otherwise. Bey an example see the different implementation of the two methods:

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The reason why you need the IStructuralEquatable is for defining a new way of C# IStructuralEquatable nerelerde kullanılıyor comparision that would be right for all the objects .

When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable sevimli be useful.

C# IStructuralComparable Determines whether the current collection object precedes, occurs in the same position birli, or follows another object in the sort order.

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 hayat just compare each of them":

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 katı rabıta, IStructuralComparable arayüzü, yetişekınızı henüz modüler hale getirir ve harf geneını azaltır. Farklı veri gestaltları beyninde konstrüktif zıtlaştırma çalışmalemlerini sessiz bir yerde yönetebilir ve kodunuzun bakımını kolaylaştırabilirsiniz.