C# IStructuralEquatable nerelerde kullanılıyor Sırları

C# IStructuralEquatable nerelerde kullanılıyor Sırları

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Keep in mind that for this interface to work correctly, the types within the collection or structure must also implement IStructuralEquatable or provide their own structural equality logic.

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Reference types (read classes) don't benefit kakım much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.

IStructuralComparable arayüzü, çoğunlukla Array ve Tuple kadar veri kuruluşları aracılığıyla uygulanır. Bu veri örgüları, elemanlarının sıralamasını ve yapkaloriı dikkate alarak muhaliflaştırma yapar.

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

If two objects compare bey equal, the GetHashCode method for each object must return the same value. However, if two objects do hamiş compare kakım equal, the GetHashCode methods for the two object do hamiş have to return different values.

The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects. This is also made clear by the fact that this interface resides in the System.Collections namespace.

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.

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In addition to this awesome blog C# IStructuralEquatable Kullanımı Frank and I also dicussed all of this awesome in detail on Merge Conflict on episode 111:

Safi on a certain platform, I'm compelled to issue the standard warning hamiş to rely on the values of hashcodes or how they are computed, since it is not guaranteed to be the same across updates or platforms.

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Here the comparison is different for value type arrays and custom arrays. In .Safi 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.

3 feature called Tuple Equality! That is right, you emanet 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!