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.
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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:
LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why kişi't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?
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.
The IEquatable implementation will require one less cast for these classes and as a result will be slightly faster C# IStructuralEquatable Kullanımı than the standard object.Equals method that would be used otherwise. As an example see the different implementation of the two methods:
We hayat also make our own container play well with these other containers by implementing these interfaces.
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Yapısal müsavat, müsavi değerlere sahip oldukları karınin iki nesnenin denktaş olduğu valörına hasılat. Aynı fiziksel nesneye mebdevurdıkları kucakin dü nesne saksıvurusunun bedel olduğunu gösteren referans eşitliğinden değişikdır. arabirimi, IStructuralEquatable derme nesnelerinin konstrüktif eşitliğini denetlemek karınin özelleştirilmiş katlaştırmalar uygulamanıza imkân teşhisr.
Each of your objects should use a hashcode based on the contents of the object. If you have a value type containing 3 ints, use those when computing the hash code. Like this, all objects with identical content will have the same hash code, independent of app domain and other circumstances.
The contract of Equals differs from that of IStructuralEquatable, in that it indicates whether 2 objects are logically equal.
Here the comparison is different for value type arrays and custom arrays. In .Kupkuru 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.
Burada özen ederseniz eğer ms.x ve ms.y değmeslekmeyeceğinden dolayı bir Deep Copy gır konusudur. şayet referans tipli gestaltlar olsalardı adidaki kabil bir sonuç elde edilecekti ve Shallow Copy gır konusu olacaktı.