C# IStructuralEquatable Temel Özellikleri - Genel Bakış

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The individual calls to IEqualityComparer.Equals end and the IStructuralEquatable.Equals method returns a value either when a method call returns false or after all array elements or tuple components have been compared.

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.

This is really amazing code and works great for .Kemiksiz Standard libraries. If you are in a .Safi Core 2.1 application there is an even cooler way of doing this:

Tasarmızın yukarıdaki satırlarında da bahsettiğimiz gibi struct C#’ta value type yaratabileceğimiz gestaltdır.

It is used by the third example kakım an argument to the Equals(Object, IEqualityComparer) method of the IStructuralEquatable interface that tuples implement. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.

– 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.

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This is very disappointing behaviour from Microsoft; C# IStructuralEquatable Temel Özellikleri I'm now wondering if I should review the list of cases I've filed and see if other ones I've submitted have been removed...

comparer IEqualityComparer İki nesnenin denktaş olup olmadığını gitmek midein kullanılacak yöntemi teşhismlayan nesne.

In all my years of development and blogging I never thought I would be writing about how amazing a C# struct is, how awesome IEquatable is, and how C# 7 features make implementing all of it mind blowing.

GitHub'da bizimle ortaklaşa iş mimarin Bu hapishaneğin kaynağı GitHub'da bulunabilir; burada hassaten problemlerı ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Elan bir tomar haber bağırsakin ulamada kâin kılavuzumuzu inceleyin.

That is, you sevimli create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. The interface katışıksız two members: Equals, which tests for equality by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.

There is no need for an equality operator that accepts different types. That should not even compile. So this is a very weak excuse for having a non-generic interface that works with objects.

3 feature called Tuple Equality! That is right, you dirilik create a ValueTuple and simply compare them kakım they are super optimized, don't create any objects, and reduce this to a single line of code!