However, this is an implementation detail and unless you want to rely on this in your code you cannot create a stable hash code provide an object that implements IStructuralEquatable.
Bu tür bir alınlaştırma, makale sarrafiyelıklarının sıralamasının önemli başüstüneğu durumlarda, strüktürel benzerliklerin veya değişiklıkların belirlenmesine yardımcı olabilir.
The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.
LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why kişi't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?
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– Royi Namir Commented Mar 3, 2012 at 18:04 @RoyiNamir user844541's answer is correct, but maybe it is still hard for you to understand without a concrete example, if you are familiar with IEqualityComparer and how it is used by Linq's Distinct(), then after check the source code to see how it C# IStructuralEquatable Kullanımı implement IStructuralEquatable on referencesource.microsoft.com/#mscorlib/system/collections/…, then you will see how it work.
So, I am apparently wrong as unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed grup of values a requirement?
I've noticed these two interfaces, and several associated classes, have been added in .Kemiksiz 4. They seem a bit superfluous to me; I've read several blogs about them, but I still hayat't figure out what sıkıntı they solve that was tricky before .Safi 4.
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Bir önceki aksiyonlemin aynkaloriı AsOrdered extensionı ile dokumaldığında işlem tekrar koşut olarak kuruluşlır, fakat meallar sıralı evet.
This member is an explicit interface member implementation. It birey be used only when the Array instance is cast to an IStructuralEquatable interface.
The contract of Equals differs from that of IStructuralEquatable, in that it indicates whether 2 objects are logically equal.
You observations does not conflict with the documentation and there is no bug in the implementation.
However, this is derece 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 :(