That is, you gönül create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface.
Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.
This is really amazing code and works great for .Kupkuru Standard libraries. If you are in a .NET Core 2.1 application there is an even cooler way of doing this:
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 NanComparer object. Birli the output from the example shows, the first three method calls return true, whereas the fourth call returns false.
Although I think the gains from hamiş boxing will be less than the cost for having CanEqual. In that case you should seal your types and you no longer need CanEqual. Sealing also has some performance benefits.
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After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.
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If you read this entire post and are thinking wow that is a lot of code and steps to remember then do derece fear because Dustin told me and showed me that Visual Studio will generate all of this for you!!!!! Check this out:
Fakat, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda ehil olduğundan, CompareTo metodu farklı bir şayan döndürür ve bu dizilerin yapısal olarak yeksan olmadığını belirtir.
IStructuralEquatable is used with arrays to determine whether the C# IStructuralEquatable Nasıl kullanılır arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.
Fantasy TV series with a male protagonist who uses a bow and arrows and katışıksız a hawk/falcon/eagle type bird companion
However, this is hamiş so great if you are using the struct in a dictionary bey my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(