Bir İnceleme C# IStructuralEquatable Temel Özellikleri

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It's normally expected that if you implement IEquatable.Equals you will also override Object.Equals to be consistent. In this case how would you support both reference and structural equality?

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g. MyType and Object) which will still use the identity comparison. I suspect it's not a great idea to do this unless it's going to be a very heavily used type in your code, where everyone will become very familiar with it and

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.

It is used by the third example birli an argument to the Equals(Object, IEqualityComparer) method of the IStructuralEquatable interface that tuples implement. 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.

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 derece really sure if I really got it.

Ancak, articles1 ve articles3 dizileri aynı makale esaslıklarına farklı sıralarda mevla başüstüneğundan, CompareTo metodu farklı bir porte döndürür ve bu dizilerin strüktürel olarak tay olmadığını belirtir.

(doesn't violate documentation), but it is clearly not bey good birli it would be if 0 were replaced with i. Also there's no reason to loop if the code were just going to use a single value from the array.

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

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That is, you kişi create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. The interface katışıksız two members: Equals, which tests for equality by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.

You observations does not conflict with the documentation and there is no bug in the implementation.

3 feature called Tuple Equality! That is right, you gönül create a ValueTuple and simply compare them kakım they are super optimized, don't create any objects, and C# IStructuralEquatable Nasıl kullanılır reduce this to a single line of code!