Bir İnceleme C# IStructuralEquatable Temel Özellikleri

Bir İnceleme 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?

Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.

Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:

Daniel A.A. PelsmaekerDaniel A.A. Pelsmaeker 49.2k2121 gold badges112112 silver badges160160 bronze badges 5 In addition to answers which point to duplicate hashcodes as is documented behavior, some reasoning and reflection would also lead you to the same conclusion.

This code technically works, but is sort of a hot mess and is not really maintainable. Anyone using the library would have to write this code as well. The next logical step would be to just use .Equals on the entire metrics.

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

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Fakat, articles1 ve articles3 dizileri aynı makale mebdelıklarına farklı sıralarda malik olduğundan, CompareTo metodu farklı bir kadir döndürür ve bu dizilerin strüktürel olarak hemayar olmadığını belirtir.

Projeyi yayınladıgınız devir user secrets kullanılmıyor. Bu sadece geliştirme aşamasında kullanılabilir.

I had the same question. When I ran LBushkin's example I was surprised to see that I got a different answer! Even though that C# IStructuralEquatable Nasıl kullanılır answer özgü 8 upvotes, it is wrong. After a lot of 'reflector'ing, here is my take on things.

Fakat, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda iye evetğundan, CompareTo metodu farklı bir ölçü döndürür ve bu dizilerin yapısal olarak müsavi 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 dirilik just compare each of them":

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Burada dikkat ederseniz şayet ms.x ve ms.y bileğişlemmeyeceğinden dolayı bir Deep Copy nazire konusudur. şayet referans tipli örgülar olsalardı bayağıdaki gibi bir sonuç elde edilecekti ve Shallow Copy lakırtı konusu olacaktı.