That is, you hayat create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface.
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This is really amazing code and works great for .Kupkuru Standard libraries. If you are in a .Kemiksiz Core 2.1 application there is an even cooler way of doing this:
Bey far as I see this is only exposed through the StructuralComparisons class. The only way I güç figure out to make this useful is to make a StructuralEqualityComparer helper class bey follow:
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If two objects compare bey equal, the GetHashCode method for each object must return the same value. However, if two objects do derece compare birli equal, the GetHashCode methods for the two object do hamiş have to return different values.
After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.
When an implementer overrides the virtual Equals method in a struct, the purpose is to provide a more efficient means of performing the value equality check and optionally to base the comparison on some subset of the struct's field or properties.
Reading through the excellent blog post by Sergey on struct equality performance he mentions that the default implementations are pretty slow and using boxing for each member. Additionally, he mentions that a memory comparison may not give you the correct results in this super simple example:
In addition to this awesome blog Frank and I also dicussed all of this awesome in detail C# IStructuralEquatable Temel Özellikleri on Merge Conflict on episode 111:
Amma velakin bu özümlemeız class kadar kompleks teamüllemler bâtınin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle etmek yetiyorsa ahacık bu stil durumlarda struct yapkaloriı yeğleme edebiliriz.
Defines methods to support the comparison of objects for structural equality. Structural equality means that two objects are equal because they have equal values.
Here the comparison is different for value type arrays and custom arrays. In .Kemiksiz 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.
Bu alanda veya gayrı bir alanda, benim ve sair yardımcı insanların paylaşımlarına lütfen acizliğiniz ve ezikliğinizle yaklaşmayınız. İzin istemek, benim hükmüm şeşna girmeniz demeına gelmemektedir.