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

= to provide value equality checks (vs the default reference equality check). The MSDN documentation suggests you only do it for immutable types. There are also issues involving interfaces and operator overloading.

It differs from reference equality, which indicates that two object references are equal because they reference the same physical object.

LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why gönül't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?

In this equating the values in arrays may be same or different but their object references are equal.

I never put much thought into using a struct over a class or even additional optimizations because to me the struct was optimized already. When I was working on fixing a bug in our DeviceDisplay to not trigger new events unless a value changed a whole new world opened up to me.

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.

In my implementation I delegated the task of calculating hash codes to the internal array. While testing it, to my great surprise, I found that my two different arrays had the same structural hash code

özge bir ifadeyle, kendi strüktürel eşitlik tanımınızı oluşturabilir ve bu tanımın arabirimi kabul IStructuralEquatable eden bir derlem türüyle kullanılacağını belirtebilirsiniz. Arabirimin iki üyesi vardır: Equals, belirtilen IEqualityComparer bir uygulamayı kullanarak eşitliği test değer ve GetHashCodeeşit olan nesneler midein aynı muhtelit kodları döndürür.

I had the same question. When I ran LBushkin's example I was surprised to see that I got a different answer! Even though that answer saf 8 upvotes, it is wrong. After a lot of 'reflector'ing, here is my take on things.

GitHub'da bizimle ortaklaşa C# IStructuralEquatable Temel Özellikleri iş strüktürn Bu yürekğin kaynağı GitHub'da bulunabilir; burada hassaten sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Henüz aşkın bilim derunin katkıda mevcut kılavuzumuzu inceleyin.

The contract of Equals differs from that of IStructuralEquatable, in that it indicates whether 2 objects are logically equal.

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Specifically, I do hamiş know the exact type of the object. The only assumption I make is that it inherit from IStructuralEquatable.