That is, you gönül 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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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.
Kırmızın yukarıdaki satırlarında da bahsettiğimiz kadar struct C#’ta value type yaratabileceğimiz mimaridır.
Bildiğiniz kabilinden new operatörü classlarda kullanıldığı devir müntesip classtan bir nesne talep edilmekte ve üretilen nesne belleğin Heap kısmında muhafaza edilmektedir.
The generic tuple classes (Tuple, Tuple, Tuple, and so on) and the Array class provide explicit implementations of the IStructuralEquatable interface. By casting (in C#) or converting (in Visual Basic) the current instance of an array or tuple to an IStructuralEquatable interface value and providing your IEqualityComparer implementation kakım an argument to the Equals method, you sevimli define a custom equality comparison for the array or collection.
If those objects do C# IStructuralEquatable nedir not contain equality/hashcode methods that satisfy that contract, you will have to wrap them and provide correct implementations for those methods yourself in the wrapper.
Consider that there are only ~4.2 billion different hashcodes. Sevimli you create more than this many different objects of the type on which GetHashCode is called? In this case it is easy to see the answer is "yes". So GetHashCode is a sort of compressing projection onto a smaller seki - there are bound to be duplicates.
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If you read this entire post and are thinking wow that is a lot of code and steps to remember then do not fear because Dustin told me and showed me that Visual Studio will generate all of this for you!!!!! Check this out:
This member is an explicit interface member implementation. It emanet be used only when the Array instance is cast to an IStructuralEquatable interface.
The contract of Equals differs from that of IStructuralEquatable, in that it indicates whether 2 objects are logically equal.
There is no need for an equality operator that accepts different types. That should derece even compile. So this is a very weak excuse for having a non-generic interface that works with objects.
Specifically, I do derece know the exact type of the object. The only assumption I make is that it inherit from IStructuralEquatable.