Açıklaması C# IStructuralEquatable Nasıl kullanılır Hakkında 5 Basit Tablolar
Açıklaması C# IStructuralEquatable Nasıl kullanılır Hakkında 5 Basit Tablolar
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Why do we have IStructuralComparable and IStructuralEquatable when there already exist the IComparable and IEquatable interfaces? The answer I would offer is that, in general, it's desirable to differentiate between reference comparisons and structural comparisons.
Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.
Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?
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 dirilik't be overridden and always compares by reference.
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comparer IEqualityComparer An object that determines whether the current instance and other are equal.
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Reading through the excellent blog post by Sergey on struct equality performance he mentions that the default implementations are pretty slow and using boxing for each member. Additionally, he mentions that a memory comparison may derece give you the correct results in this super simple example:
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IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.
Default property. The second time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom C# IStructuralEquatable Temel Özellikleri NanComparer object. Bey the output from the example shows, the first three method calls return true, whereas the fourth call returns false.
3 feature called Tuple Equality! That is right, you güç create a ValueTuple and simply compare them birli they are super optimized, don't create any objects, and reduce this to a single line of code!