If equality is not needed for the derived class you güç skip IEquatable but you need to override the CanEqual to prevent it being equal with base classes (unless of course they should be considered equal).
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g. MyType and Object) which will still use the identity comparison. I suspect it's derece a great idea to do this unless it's going to be a very heavily used type in your code, where everyone will become very familiar with it and
LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why yaşama't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?
In this equating the values in arrays may be same or different but their object references are equal.
I never put much thought into using a struct over a class or even additional optimizations because to me the struct was optimized already. When I was working on fixing a bug in our DeviceDisplay to not trigger new events unless a value changed a whole new world opened up to me.
The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects. This is also made C# IStructuralEquatable Temel Özellikleri 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 Frank and I also dicussed all of this awesome in detail on Merge Conflict on episode 111:
Each of your objects should use a hashcode based on the contents of the object. If you have a value type containing 3 ints, use those when computing the hash code. Like this, all objects with identical content will have the same hash code, independent of app domain and other circumstances.
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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 dirilik create a ValueTuple and simply compare them birli they are super optimized, don't create any objects, and reduce this to a single line of code!