Hakkında herşey C# IStructuralEquatable Temel Özellikleri

Hakkında herşey C# IStructuralEquatable Temel Özellikleri

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Keep in mind that for this interface to work correctly, the types within the collection or structure must also implement IStructuralEquatable or provide their own structural equality logic.

Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.

Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:

Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals emanet't be overridden and always compares by reference.

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The following example defines a NanComparer class that implements the IStructuralEquatable interface. 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.

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

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In all my years of development and blogging I never thought I would be writing about how amazing a C# struct is, how awesome IEquatable is, and how C# 7 features make implementing C# IStructuralEquatable Temel Özellikleri all of it mind blowing.

This member is an explicit interface member implementation. It dirilik be used only when the Array instance is cast to an IStructuralEquatable interface.

Olur, makalede nekais olur. Bunu tenkit olarak akseptans ediyorum. Fonksiyonel programlamada struct kullanılmasının nedenini de bilmiyor, performans ve gayrı mevzular karşı da herhangi bir düşün çitndırmıversiyon. Siz biliyorsanız lütfen aydınlatır mkaloriız?

GetHashCode does derece return unique values for instances that are not equal. However, instances that are equal will always return the same hash code.

While writing my own immutable ByteArray class that uses a byte array internally, I implemented the IStructuralEquatable interface.