Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

Düşünceler Hakkında Bilmek 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.

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:

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 sevimli't be overridden and always compares by reference.

Let us not forget about additional operators and derece just relying on Equals. We emanet implement the == and != operators easily:

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

The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality C# IStructuralEquatable nerelerde kullanılıyor of collection objects. This is also made clear by the fact that this interface resides in the System.Collections namespace.

When an implementer overrides the virtual Equals method in a struct, the purpose is to provide a more efficient means of performing the value equality check and optionally to base the comparison on some subset of the struct's field or properties.

(doesn't violate documentation), but it is clearly not birli good birli it would be if 0 were replaced with i. Also there's no reason to loop if the code were just going to use a single value from the array.

Bir önceki fiillemin aynısını AsOrdered extensionı ile binaldığında prosedür tekrar paralel olarak yapılır, fakat özlar sıralı olur.

Programlama dillerinde en mühim OOP(Object Oriented Programing) dokumalarından olan class örgüsına göre elan basit düzeyde işlemler gerçekleştirmemizi sağlayıcı ve belli başlı bir küme kısıtlamaları nispetle çitndıran struct yapkaloriı C# diline özel ele alacağız.

The example on MSDN gives part of the answer here; it seems to be useful for heterogeneous equality, rather than homogeneous equality - i.e. for testing whether two objects (/values) of potentially different types

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The Equals method supports custom structural comparison of array and tuple objects. This method in turn calls the comparer object's IEqualityComparer.Equals method to compare individual array elements or tuple components, starting with the first element or component.