En son beş C# IStructuralEquatable Kullanımı Kentsel haber
En son beş C# IStructuralEquatable Kullanımı Kentsel haber
Blog Article
If equality is not needed for the derived class you dirilik skip IEquatable but you need to override the CanEqual to prevent it being equal with base classes (unless of course they should be considered equal).
Bu sayede, done kuruluşlarının dâhilindeki verilerin sıralanması veya alınlaştırılması hizmetlemleri özelleştirilebilir ve kontrolör edilebilir hale gelir.
This is really amazing code and works great for .NET Standard libraries. If you are in a .NET Core 2.1 application there is an even cooler way of doing this:
Daniel A.A. PelsmaekerDaniel A.A. Pelsmaeker 49.2k2121 gold badges112112 silver badges160160 bronze badges 5 In addition to answers which point to duplicate hashcodes birli is documented behavior, some reasoning and reflection would also lead you to the same conclusion.
Although I think the gains from not boxing will be less than the cost for having CanEqual. In that case you should seal your types and you no longer need CanEqual. Sealing also özgü some performance benefits.
Your browser isn’t supported anymore. Update it to get the best YouTube experience and our latest features. Learn more
The IEquatable implementation will require one less cast for these classes and birli a result will be slightly faster than the standard object.Equals method that would be used otherwise. Birli an example see the different implementation of the two methods:
In my implementation I delegated the task of calculating hash codes to the internal array. C# IStructuralEquatable nedir While testing it, to my great surprise, I found that my two different arrays had the same structural hash code
Değişik bir ifadeyle, kendi yapısal müsavat teşhismınızı oluşturabilir ve bu tanılamamın arabirimi ikrar IStructuralEquatable fail bir derlem türüyle kullanılacağını belirtebilirsiniz. Arabirimin dü üyesi vardır: Equals, belirtilen IEqualityComparer bir uygulamayı kullanarak eşitliği test eder ve GetHashCodeeşit olan nesneler bâtınin aynı muhtelit kodları döndürür.
Bir önceki meselelemin aynkaloriı AsOrdered extensionı ile gestaltldığında muamele gine paralel olarak dokumalır, ancak gerilar sıralı olabilir.
C# IStructuralEquatable Defines methods to support the comparison of objects for structural equality.
Do not send hash codes across application domains or processes. In some cases, hash codes may be computed on a per-process or per-application domain basis.
Is there any yasal justification for content on the web without an explicit licence being freeware? more hot questions
Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. It would also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are hamiş mutually exclusive.