Büyülenme Hakkında C# IStructuralEquatable nedir

Büyülenme Hakkında C# IStructuralEquatable nedir

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The "No" in part 2 of the answer is actually incorrect. Note: Tried editing the answer, but apparently some think that the highest rated answer being incorrect is hamiş reason enough to approve a correction edit.

= to provide value equality checks (vs the default reference equality check). The MSDN documentation suggests you only do it for immutable types. There are also issues involving interfaces and operator overloading.

Reference types (read classes) don't benefit birli much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.

LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why emanet't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?

This code technically works, but is sort of a hot mess and is not really maintainable. Anyone using the library would have to write this code birli well. The next logical step would be to just use .Equals on the entire metrics.

45IStructuralEquatable seObj = x bey IStructuralEquatable; 64IStructuralEquatable seObj = obj kakım IStructuralEquatable;

What does IEquatable buy you, exactly? The only reason I güç see it being useful is when creating a generic type and forcing users to implement and write a good equals method.

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

Reading through the excellent blog post by Sergey on struct equality performance he mentions that the default implementations are pretty slow and using boxing for each member. Additionally, he mentions that a memory comparison may derece give you the correct results in this super simple example:

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.

C# IStructuralComparable Determines whether the current collection object precedes, occurs in the same position as, or follows another object in the sort order.

The contract of Equals differs from that of IStructuralEquatable, in that it indicates whether 2 objects are logically equal.

GetHashCode does derece return unique values for instances that are not equal. However, instances that are equal will always return the C# IStructuralEquatable nerelerde kullanılıyor same hash code.

Bunun cepheı aralık, IStructuralComparable arayüzü, yetişekınızı daha modüler hale getirir ve harf tekrarını azaltır. Farklı bilgi konstrüksiyonları arasında konstrüktif muhaliflaştırma aksiyonlemlerini yekta bir yerde yönetebilir ve kodunuzun hizmetını kolaylaştırabilirsiniz.