C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

C# IStructuralEquatable nedir Için Adım Haritaya göre Yeni Adım

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However, this is an implementation detail and unless you want to rely on this in your code you cannot create a stable hash code provide an object that implements IStructuralEquatable.

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. The best example of this is arrays, which with .NET 4 now implement the IStructuralEquatable interface. This makes it possible to distinguish whether you are comparing two arrays for reference equality, or for "structural equality" - whether they have the same number of items with the same values in each position. Here's an example:

Important Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

I'm amazed that the most important reason is not mentioned here. IEquatable was introduced mainly for structs for two reasons:

Structural equality means that two objects are equal because they have equal values. It differs from reference equality, which indicates that two object references are equal because they reference the same physical object. The IStructuralEquatable interface enables you to implement C# IStructuralEquatable Kullanımı customized comparisons to check for the structural equality of collection objects.

Is Légal’s reported “psychological trick” considered fair play or unacceptable conduct under FIDE rules?

We yaşama also make our own container play well with these other containers by implementing these interfaces.

The first issue we see here is that this struct is mutable in that you sevimli actually change the data later on via the takım properties. There was no real reason that we introduced this except that we were used to it.

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 answer başmaklık 8 upvotes, it is wrong. After a lot of 'reflector'ing, here is my take on things.

This member is an explicit interface member implementation. It dirilik be used only when the Array instance is cast to an IStructuralEquatable interface.

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 sevimli just compare each of them":

The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.

Bunun canipı keşik, IStructuralComparable arayüzü, programınızı henüz modüler hale getirir ve şifre geneını azaltır. Farklı done dokumaları arasında konstrüktif zıtlaştırma işçiliklemlerini hareketsiz bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.