C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

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That is, you emanet create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface.

Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.

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.

Default property. The second time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom NanComparer object. Kakım the output from the example shows, the first three method calls return true, whereas the fourth call returns false.

Bey an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.

Structural equality means that two objects are equal because they have equal values. It differs from reference equality, which indicates that two object references are equal because they reference the same physical object. The IStructuralEquatable interface enables you to implement customized comparisons to check C# IStructuralEquatable nedir for the structural equality of collection objects.

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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.

Gayrı bir ifadeyle, kendi strüktürel muadelet tanımınızı oluşturabilir ve bu tanılamamın arabirimi onaylama IStructuralEquatable fail bir derlem türüyle kullanılacağını belirtebilirsiniz. Arabirimin dü üyesi vardır: Equals, tamlanan IEqualityComparer bir uygulamayı kullanarak eşitliği test değer ve GetHashCodeeşit olan nesneler derunin 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 katışıksız 8 upvotes, it is wrong. After a lot of 'reflector'ing, here is my take on things.

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

Are the bonuses for infernal war machine weapon stations static, or are they affected by their user?

3 feature called Tuple Equality! That is right, you gönül create a ValueTuple and simply compare them kakım they are super optimized, don't create any objects, and reduce this to a single line of code!