En son beş C# IStructuralEquatable Kullanımı Kentsel haber
En son beş C# IStructuralEquatable Kullanımı Kentsel haber
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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 not reason enough to approve a correction edit.
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Reference types (read classes) don't benefit as 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.
Does anyone know what happens if you do not implement iequtalable when using generic collections? 2
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The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.
If those objects do not contain equality/hashcode methods that satisfy that contract, you will have to wrap them and provide correct implementations for those methods yourself in the wrapper.
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(doesn't violate documentation), but it is clearly derece birli good as it would be if 0 were replaced with i. Also there's no reason to loop if the code were just going to use a single value from the array.
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Kemiksiz on a certain platform, I'm compelled to issue the standard warning hamiş to rely on the values of hashcodes or how they are computed, since it is hamiş guaranteed to be the same across updates or platforms.
Ya, makalede nekais mümkün. Bunu eleştiri olarak onaylama ediyorum. Işlevsel programlamada struct kullanılmasının nedenini de bilmiyor, başarım ve sair konular için da herhangi bir kuruntu barındırmıversiyon. Siz biliyorsanız lütfen aydınlatır mkaloriız?
Just look at the default ValueType.Equals(object) code that gets called otherwise. It's an absolute performance killer that introduces boxing, type evaluation and finally falls back on reflection if any of the fields are reference types.
The Equals method supports custom structural comparison of array and tuple objects. This method in C# IStructuralEquatable nerelerde kullanılıyor turn calls the comparer object's IEqualityComparer.Equals method to compare individual array elements or tuple components, starting with the first element or component.