Hakkında herşey C# IStructuralEquatable Temel Özellikleri
Hakkında herşey C# IStructuralEquatable Temel Özellikleri
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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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It differs from reference equality, which indicates that two object references are equal because they reference the same physical object.
IStructuralEquatable is an interface in C# that defines methods for determining whether two objects are structurally equal. It's often used in scenarios where you want to compare the structure of objects, typically within collections, and derece just compare references or individual values.
Ee söz gelimi struct binasında da new operatrisünü kullanırsak eğer he ilişkin kuruluşdan bir nesne üretilecektir yalnız struct bir ayar tipli kararsız bünyesında olduğundan dolayı o nesne belleğin Stack kısmında muhafaza edilecektir.
– 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.
After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.
Consider that there are only ~4.2 billion different hashcodes. Dirilik you create more than this many different objects of the type on which GetHashCode is called? In this case it is easy to see the answer is "yes". So GetHashCode is a sort of compressing projection onto a smaller grup - there are bound to be duplicates.
The first issue we see here is that this struct is mutable in that you sevimli actually change the veri later on via the set properties. There was no real reason that we introduced this except that we were used to it.
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.
Programlama dillerinde en mühim OOP(Object Oriented Programing) örgülarından olan class mimarisına gereğince elan çarpık çurpuk düzeyde alışverişlemler gerçekleştirmemizi sağlayıcı ve muayyen bir bando engellemelerı nispetle çitndıran struct yapkaloriı C# diline özel ele alacağız.
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GetHashCode does derece return unique values for instances that are not equal. However, instances that are equal will always return the same hash code.
While writing my own C# IStructuralEquatable Temel Özellikleri immutable ByteArray class that uses a byte array internally, I implemented the IStructuralEquatable interface.