C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım
C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım
Blog Article
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.
Bu tür bir hakkındalaştırma, makale esaslıklarının sıralamasının önemli başüstüneğu durumlarda, strüktürel benzerliklerin veya farklılıkların belirlenmesine yardımcı mümkün.
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.
IStructuralComparable arayüzü, umumiyetle Array ve Tuple kabilinden done dokumaları aracılığıyla uygulanır. Bu muta konstrüksiyonları, elemanlarının sıralamasını ve yapkaloriı dikkate alarak içinlaştırma yapar.
You generic method has a type parameter T but the type is hamiş part of the signature of the function so how is T supposed to be used in the function? Anyway, you kişi use .Kemiksiz tuples or anonymous types to create hash codes by combining values but I am hamiş sure this answers your question.
– Royi Namir Commented Mar 3, 2012 at 18:04 @RoyiNamir user844541's answer is correct, but maybe it is still hard for you to understand without a concrete example, if you are familiar with IEqualityComparer and how C# IStructuralEquatable nerelerde kullanılıyor it is used by Linq's Distinct(), then after check the source code to see how it implement IStructuralEquatable on referencesource.microsoft.com/#mscorlib/system/collections/…, then you will see how it work.
After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.
We birey also make our own container play well with these other containers by implementing these interfaces.
Important Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable dirilik be useful.
This member is an explicit interface member implementation. It can be used only when the Array instance is cast to an IStructuralEquatable interface.
That is, you dirilik create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. The interface başmaklık two members: Equals, which tests for equality by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.
You observations does not conflict with the documentation and there is no bug in the implementation.
3 feature called Tuple Equality! That is right, you birey 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!