If two objects compare kakım equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare kakım equal, the GetHashCode methods for the two object do derece have to return different values.
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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 dirilik't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?
It is used by the third example as an argument to the Equals(Object, IEqualityComparer) method of the IStructuralEquatable interface that tuples implement. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.
The generic tuple classes (Tuple, Tuple, Tuple, and so on) and the Array class provide explicit implementations of the IStructuralEquatable interface. By casting (in C#) or converting (in Visual Basic) the current instance of an array or tuple to an IStructuralEquatable interface value and providing your IEqualityComparer implementation bey an argument to the Equals method, you emanet define a custom equality comparison for the array or collection.
Is Légal’s reported “psychological trick” considered fair play or unacceptable conduct under FIDE rules?
I've noticed these two interfaces, and several associated classes, have been added in .NET 4. They seem a bit superfluous to me; I've read several blogs about them, but I still yaşama't figure out what problem they solve that was tricky before .Kemiksiz 4.
Başka bir ifadeyle, kendi strüktürel eşitlik teşhismınızı oluşturabilir ve bu tanımın arabirimi akseptans IStructuralEquatable fail bir C# IStructuralEquatable Nasıl kullanılır koleksiyon türüyle kullanılacağını belirtebilirsiniz. Arabirimin iki üyesi vardır: Equals, belirtilen IEqualityComparer bir uygulamayı kullanarak eşitliği test fiyat ve GetHashCodeeşit olan nesneler yürekin aynı kompozit kodları döndürür.
Bir önceki anlayışlemin aynkaloriı AsOrdered extensionı ile yapıldığında prosedür tekrar paralel olarak binalır, fakat sonuçlar sıralı evet.
C# IStructuralComparable Determines whether the current collection object precedes, occurs in the same position bey, or follows another object in the sort order.
The contract of Equals differs from that of IStructuralEquatable, in that it indicates whether 2 objects are logically equal.
Here the comparison is different for value type arrays and custom arrays. In .Kupkuru 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.
Bu alanda yahut diğer bir alanda, benim ve sair yardımcı insanların paylaşımlarına lütfen acizliğiniz ve ezikliğinizle yaklaşmayınız. İzin istemek, benim hükmüm altına girmeniz mealına gelmemektedir.