En son beş C# IStructuralEquatable Kullanımı Kentsel haber

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Does anyone know what happens if you do hamiş implement iequtalable when using generic collections? 2

You generic method özgü a type parameter T but the type is derece part of the signature of the function so how is T supposed to be used in the function? Anyway, you emanet use .Safi tuples or anonymous types to create hash codes by combining values but I am derece sure this answers your question.

45IStructuralEquatable seObj = x as IStructuralEquatable; 64IStructuralEquatable seObj = obj birli IStructuralEquatable;

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. As 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 comparision that would be right for all the objects .

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Kupkuru on a certain platform, I'm compelled to issue the standard warning derece to rely on the values of hashcodes or how they are computed, since it is hamiş guaranteed to be the same across updates or platforms.

That is, you emanet 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.

Here the comparison is different for value type arrays and custom arrays. In C# IStructuralEquatable nedir .Net 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.

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