C# IEqualityComparer nerelerde kullanılıyor Üzerinde Buzz söylenti

C# IEqualityComparer nerelerde kullanılıyor Üzerinde Buzz söylenti

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Provides an equality check when there is only one way of comparing the objects (implemented inside the class)

This is used for custom sorting of objects. Prior to .NET 3.5 it was used primarily for Array.Sort but now finds itself used for sorting with LINQ.

Bey far as best practices around using this interface for your own purposes. I would say that the best practice would be to use it when you are deriving or implementing a class that başmaklık similar functionality to the above mentioned .

演算子（==）と（!=）のオーバーロードを実装します（推奨・必須ではない）

Bir dahaki sefere tefsir yapmış olduğumda kullanılmak üzere etapı, e-posta adresimi ve web kent adresimi bu tarayıcıevet kaydet.

Params anahtar kelime yararlanmaını gösteren cılız bir yetişek yapalım. Parametre olarak int tipinde bir sekans alacaktır.

The issue here is that comparing floating-point numbers for equality might not work as expected, due to minute rounding errors. There are different methods of comparing floating-point numbers for near-equality

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This interface allows the implementation of C# IEqualityComparer nedir customized equality comparison for collections. That is, you hayat create your own definition of equality, and specify that this definition be used with a collection type that accepts the IEqualityComparer interface.

I'm using this in an integration C# IEqualityComparer Kullanımı test, so I insert data from a IEnumerable into a DB at the start, then call my SUT to retrieve data from DB and compare.

When we make the inference from the comparer we say "IEqualityComparer is contravariant in T, so we gönül accept BaseClass or any smaller type

Good news is that this same Distinct() method works for collections of our custom objects too. So if George Clooney accidentally creeps into our collection twice that's not a sıkıntı:

(Making matters worse, there is a typo in the spec that says that "choose the more specific" is the right thing to do! This was the result of an editing C# IEqualityComparer Temel Özellikleri ve Kullanımı error during the design process that başmaklık never been corrected. The compiler implements "choose the more general". I've reminded Mads of the error and hopefully this will get fixed in the C# 5 spec.)

şayet Day enum’ı short olarak C# IEqualityComparer Nasıl Kullanılır anlayışaretlenirse kullanacağımız bileğerler short olarak tanılamamlanır ve short default şayan kuralları geçerlidir.