Hakkında herşey C# IStructuralEquatable Temel Özellikleri

Hakkında herşey C# IStructuralEquatable Temel Özellikleri

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

In this case you don't want to change your class implementation so you don't wantoverride the Equals method. this will define a general way to compare objects in your application.

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

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

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The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.

So, I am apparently wrong birli unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed kaş of values a requirement?

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.

comparer IEqualityComparer İki nesnenin hemayar olup olmadığını gitmek yürekin kullanılacak yöntemi tanımlayan nesne.

Bu örnekte, articles1 ve articles2 dizileri aynı makale esaslıklarına aynı sırada malik evetğundan, C# IStructuralEquatable nerelerde kullanılıyor CompareTo metodu 0 döndürerek bu dizilerin yapısal olarak müsavi bulunduğunu belirtir.

Fakat, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda sahip başüstüneğundan, CompareTo metodu farklı bir mesabe döndürür ve bu dizilerin yapısal olarak denktaş olmadığını belirtir.

Now that our struct is immutable the actual issue comes up when you need to compare these values. When I started to write the code to fix the bug I just decided that "hey I have the old values, I kişi just compare each of them":

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Burada nazarıitibar ederseniz şayet ms.x ve ms.y değteamülmeyeceğinden dolayı bir Deep Copy kavil konusudur. şayet referans tipli bünyelar olsalardı süflidaki kabil bir sonuç elde edilecekti ve Shallow Copy kelime konusu olacaktı.