C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

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comparer IEqualityComparer An object that determines whether the current instance and other are equal.

Bu tür bir karşıtlaştırma, makale başlangıçlıklarının sıralamasının önemli başüstüneğu durumlarda, konstrüktif benzerliklerin yahut değişiklıkların belirlenmesine yardımcı olur.

g. MyType and Object) which will still use the identity comparison. I suspect it's hamiş 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

Bey far kakım I see this is only exposed through the StructuralComparisons class. The only way I hayat figure out to make this useful is to make a StructuralEqualityComparer helper class kakım follow:

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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.

1 My understanding is that it's used for collection like types, and encapsulates the structural part of the comparison, but leaved the comparison of C# IStructuralEquatable Temel Özellikleri the elements to a comparer passed in by the user. But I'm not really sure if I really got it.

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Ray BooysenRay Booysen 29.6k1414 gold badges8686 silver badges111111 bronze badges 6 so when you are dealing with objects, is == assumed to only mean the exact same memory address (same instance)

If you read this entire post and are thinking wow that is a lot of code and steps to remember then do not fear because Dustin told me and showed me that Visual Studio will generate all of this for you!!!!! Check this out:

C# IStructuralComparable Determines whether the current collection object precedes, occurs in the same position bey, or follows another object in the sort order.

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

Just look at the default ValueType.Equals(object) code that gets called otherwise. It's an absolute performance killer that introduces boxing, type evaluation and finally falls back on reflection if any of the fields are reference types.

While writing my own immutable ByteArray class that uses a byte array internally, I implemented the IStructuralEquatable interface.