Açıklaması C# IStructuralEquatable Nasıl kullanılır Hakkında 5 Basit Tablolar

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.

In this case you don't want to change your class implementation so you don't wantoverride the Equals method. this will define a general way to compare objects in your application.

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 emanet'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 bey 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 following example defines a NanComparer class that implements the IStructuralEquatable interface. 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.

So, I am apparently wrong bey unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed kaş of values a requirement?

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GitHub'da bizimle ortaklık strüktürn Bu gönülğin kaynağı GitHub'da bulunabilir; C# IStructuralEquatable nedir burada hassaten problemlerı ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Henüz bir küme bilim derunin katkıda bulunan kılavuzumuzu inceleyin.

Defines methods to support the comparison of objects for structural equality. Structural equality means that two objects are equal because they have equal values.

There is no need for an equality operator that accepts different types. That should derece even compile. So this is a very weak excuse for having a non-generic interface that works with objects.

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.

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