C# IStructuralEquatable nerelerde kullanılıyor Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable nerelerde kullanılıyor Için Adım Haritaya göre Yeni Adım

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The "No" in part 2 of the answer is actually incorrect. Note: Tried editing the answer, but apparently some think that the highest rated answer being incorrect is derece reason enough to approve a correction edit.

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This is really amazing code and works great for .NET Standard libraries. If you are in a .Kemiksiz Core 2.1 application there is an even cooler way of doing this:

As far bey I see this is only exposed through the StructuralComparisons class. The only way I sevimli figure out to make this useful is to make a StructuralEqualityComparer helper class as follow:

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

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 for the structural equality of collection objects.

The IEquatable implementation will require one less cast for these classes and birli a result will be slightly faster than the standard object.Equals method that would be used otherwise. Kakım an example see the different implementation of the two methods:

We hayat also make our own container play well with these other containers by implementing these interfaces.

The reason why you need the IStructuralEquatable is for defining a new way of comparision that would be right for all the objects .

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

Safi on a certain ortam, 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.

IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.

There is no need for an equality operator that accepts different types. That should hamiş even compile. So this is a C# IStructuralEquatable nerelerde kullanılıyor 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 hamiş mutually exclusive.