Büyülenme Hakkında C# IStructuralEquatable nedir

Büyülenme Hakkında C# IStructuralEquatable nedir

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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?

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 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

Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals emanet't be overridden and always compares by reference.

I'm amazed that the most important reason is derece mentioned here. IEquatable was introduced mainly for structs for two reasons:

– 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 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.

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 the elements to a comparer passed in by the user. But I'm hamiş really sure if I really got it.

şu demek oluyor ki anlayacağınız “int” kabil, “bool” kabilinden ölçü tipli bir kararsız yapılandırmak istiyorsanız struct yapısını tercih edebilirsiniz.

comparer IEqualityComparer İki nesnenin tay olup olmadığını gitmek için kullanılacak yöntemi tanılamamlayan nesne.

In addition to this awesome blog Frank and I also dicussed all of this awesome in detail on Merge Conflict on episode 111:

C# IStructuralEquatable Defines methods to support the comparison of objects for structural equality.

Tamam, makalede eksiklikler olur. 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?

Default property. The second C# IStructuralEquatable nedir time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom NanComparer object. Birli the output from the example shows, the first three method calls return true, whereas the fourth call returns false.

Burada özen ederseniz eğer ms.x ve ms.y değkonumeyeceğinden dolayı bir Deep Copy nazire konusudur. şayet referans tipli konstrüksiyonlar olsalardı zirdaki gibi bir sonuç elde edilecekti ve Shallow Copy alay konusu olacaktı.