C# IStructuralEquatable Nasıl kullanılır Ile ilgili detaylı notlar

C# IStructuralEquatable Nasıl kullanılır Ile ilgili detaylı notlar

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The "No" in part 2 of the answer is actually incorrect. Note: Tried editing the answer, but apparently some think that the highest rated answer being incorrect is hamiş reason enough to approve a correction edit.

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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.

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This code technically works, but is sort of a hot mess and is hamiş really maintainable. Anyone using the library would have to write this code kakım well. The next logical step would be to just use .Equals on the entire metrics.

The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.

After some more testing I found that any two arrays with the same first element have the C# IStructuralEquatable Kullanımı same hash. I still think this is strange behavior.

Ancak, articles1 ve articles3 dizileri aynı makale başlangıçlıklarına farklı sıralarda malik olduğundan, CompareTo metodu farklı bir eder döndürür ve bu dizilerin strüktürel olarak hemayar olmadığını belirtir.

Important Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Strüktürel muadelet, hemayar bileğerlere iye oldukları derunin dü nesnenin hemayar olduğu mealına gelir. Aynı fiziksel nesneye esasvurdıkları bağırsakin dü nesne esasvurusunun tay olduğunu gösteren müracaat eşitliğinden değişikdır. arabirimi, IStructuralEquatable koleksiyon nesnelerinin konstrüktif eşitliğini denetlemek bağırsakin özelleştirilmiş zıtlaştırmalar uygulamanıza olanak tanır.

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

Now that our struct is immutable the actual issue comes up when you need to compare these values. When I started to write the code to fix the bug I just decided that "hey I have the old values, I sevimli just compare each of them":

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Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. It would also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are derece mutually exclusive.