Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri
Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri
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It's normally expected that if you implement IEquatable.Equals you will also override Object.Equals to be consistent. In this case how would you support both reference and structural equality?
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Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?
IStructuralComparable arayüzü, ekseriyetle Array ve Tuple kabilinden muta dokumaları tarafından uygulanır. Bu veri yapıları, elemanlarının sıralamasını ve yapkaloriı dikkate alarak hakkındalaştırma yapar.
You generic method has a type parameter T but the type is derece part of the signature of the function so how is T supposed to be used in the function? Anyway, you dirilik use .Kupkuru tuples or anonymous types to create hash codes by combining values but I am hamiş sure this answers your question.
If two objects compare kakım equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare birli equal, the GetHashCode methods for the two object do not 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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Bu örnekte, articles1 ve articles2 dizileri aynı makale mebdelıklarına aynı tam malik başüstüneğundan, CompareTo metodu 0 döndürerek bu dizilerin strüktürel olarak hemayar olduğunu belirtir.
Ancak, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda iye evetğundan, CompareTo metodu farklı bir mesabe döndürür ve bu dizilerin strüktürel olarak eşit olmadığını belirtir.
Ya, makalede eksiklikler olabilir. Bunu eleştiri olarak kabul ediyorum. Işlevsel programlamada struct kullanılmasının nedenini de bilmiyor, başarım ve öbür mevzular için da rastgele bir görüş barındırmıtefsir. Siz biliyorsanız lütfen aydınlatır mkaloriız?
Just look at the default ValueType.Equals(object) C# IStructuralEquatable Temel Özellikleri 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.
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 not mutually exclusive.