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 derece reason enough to approve a correction edit.
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That is right! When we override Equals we must also override and implement GetHashCode. I am no HashCode expert, but in the same article from Sergey is a snippet of using a ValueTuple to simplify this entire call to 1 line of code just like our fancy ValueTuple Equality above.
As far bey I see this is only exposed through the StructuralComparisons class. The only way I sevimli figure out to make this useful is to make a StructuralEqualityComparer helper class bey follow:
Kakım an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.
Your concern is that Object.GetHashCode() does not provide values that are stable and the concern is very valid as sevimli be seen in the first box headed by Caution in the C# IStructuralEquatable Kullanımı documentation:
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.
This is very disappointing behaviour from Microsoft; I'm now wondering if I should review the list of cases I've filed and see if other ones I've submitted have been removed...
(doesn't violate documentation), but it is clearly not bey good birli 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.
In Xamarin.Essentials we use the C# struct all over the place to encapsulate "small groups of related variables" for our event handlers. They are groups of data that don't need to be created by the developers consuming the data and are only really used for reading the data.
Programlama dillerinde en mühim OOP(Object Oriented Programing) binalarından olan class strüktürsına bakılırsa elan basit düzeyde teamüllemler gerçekleştirmemizi sağlayan ve belli bir küme kısıtlamaları nispetle çitndıran struct yapkaloriı C# diline özel ele alacağız.
Defines methods to support the comparison of objects for structural equality. Structural equality means that two objects are equal because they have equal values.
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.
While writing my own immutable ByteArray class that uses a byte array internally, I implemented the IStructuralEquatable interface.