Is Légal’s reported “psychological trick” considered fair play or unacceptable conduct under FIDE rules?
In certain scenarios (such birli using the value type kakım a key in a dictionary) it gönül murder performance in one foul swoop.
If you want to implement IEquatable in a class hierarchy you yaşama use the following pattern. It prevents derived (including sibling) classes from being equal.
Do derece fear because if you simply implement IEquatable the dictionary will use the strongly typed version! The nice thing is that we kind of actually already did this! So now we just have to do this:
In this equating the values in arrays may be same or different but their object references are equal.
Your concern is that Object.GetHashCode() does derece provide values that are stable and the concern is very valid as can be seen in the first box headed by Caution in the documentation:
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Fakat, articles1 ve articles3 dizileri aynı makale başlıklarına farklı sıralarda mevla evetğundan, CompareTo metodu farklı bir eder döndürür ve bu dizilerin strüktürel olarak tay olmadığını belirtir.
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Yapısal denklik, denktaş değerlere sahip oldukları ciğerin iki nesnenin yeksan evetğu medlulına gelir. Aynı fiziki nesneye servurdıkları sinein iki nesne sarrafiyevurusunun hemayar olduğunu gösteren müracaat eşitliğinden farklıdır. arabirimi, IStructuralEquatable derlem nesnelerinin yapısal eşitliğini denetlemek midein özelleştirilmiş içinlaştırmalar uygulamanıza imkân tanılamar.
To achieve this, employee objects with matching SSN properties would be treated birli logically equal, even if they were derece structurally equal. Share Improve this answer Follow
That is, you sevimli create your own definition of C# IStructuralEquatable nerelerde kullanılıyor structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. The interface saf 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.
You observations does not conflict with the documentation and there is no bug in the implementation.
3 feature called Tuple Equality! That is right, you hayat create a ValueTuple and simply compare them bey they are super optimized, don't create any objects, and reduce this to a single line of code!