Benim C# IStructuralEquatable Nasıl kullanılır Başlarken Çalışmak

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If two objects compare birli equal, the GetHashCode method for each object must return the same value. However, if two objects do hamiş compare bey equal, the GetHashCode methods for the two object do hamiş have to return different values.

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Hatmızın yukarıdaki satırlarında da bahsettiğimiz kabil struct C#’ta value type yaratabileceğimiz strüktürdır.

You generic method saf 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 güç use .Kemiksiz tuples or anonymous types to create hash codes by combining values but I am hamiş sure this answers your question.

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So, I am apparently wrong birli unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed grup of values a requirement?

Consider that there are only ~4.2 billion different hashcodes. Yaşama 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 set - there are bound to be duplicates.

(doesn't violate documentation), but it is clearly not as good bey 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.

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To achieve this, employee objects with matching SSN properties would be treated bey logically equal, even if they were not structurally equal. Share Improve this answer Follow

The contract of Equals differs from that of IStructuralEquatable, in that it indicates whether 2 objects are logically equal.

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Specifically, I do derece know the exact type of the object. The only assumption I make is that it inherit from IStructuralEquatable.