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.

1 How do such comparators relate to things like Dictionary and other collections? I know that Dictionary seems to handle structures sensibly albeit slowly in .

That is right! When we override Equals we must also override and implement GetHashCode. I am no HashCode expert, but in the same article from Sergey is a snippet of using a ValueTuple to simplify this entire call to 1 line of code just like our fancy ValueTuple Equality above.

Does anyone know what happens if you do hamiş implement iequtalable when using generic collections? 2

I'm amazed that the most important reason is derece mentioned here. IEquatable was introduced mainly for structs for two reasons:

comparer IEqualityComparer An object that determines whether the current instance and other are equal.

1 My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaved the comparison of the elements to a comparer passed in by the user. But I'm derece really sure if I really got it.

Ancak, articles1 ve articles3 dizileri aynı makale temellıklarına farklı sıralarda sahip başüstüneğundan, CompareTo metodu farklı bir şayan döndürür ve bu dizilerin konstrüktif olarak eşit olmadığını belirtir.

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

Yapısal eşitlik, bedel değerlere mevla oldukları sinein iki nesnenin bedel evetğu mazmunına gelir. Aynı fiziksel nesneye mirvurdıkları kucakin iki nesne temelvurusunun müsavi olduğunu gösteren müracaat eşitliğinden farklıdır. arabirimi, IStructuralEquatable koleksiyon nesnelerinin strüktürel eşitliğini denetlemek karınin özelleştirilmiş karşıtlaştırmalar uygulamanıza olanak tanılamar.

Each of your objects should use a hashcode based on the contents of the object. If you have a value type containing 3 ints, use those when computing the hash code. Like this, all objects with identical content will have the same hash code, independent of app domain and other circumstances.

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?

GetHashCode does derece return unique values for instances that are derece equal. However, instances that C# IStructuralEquatable Temel Özellikleri 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.