Bir İnceleme C# IStructuralEquatable Temel Özellikleri
Bir İnceleme C# IStructuralEquatable Temel Özellikleri
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Why do we have IStructuralComparable and IStructuralEquatable when there already exist the IComparable and IEquatable interfaces? The answer I would offer is that, in general, it's desirable to differentiate between reference comparisons and structural comparisons.
= 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.
It differs from reference equality, which indicates that two object references are equal because they reference the same physical object.
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 derece really maintainable. Anyone using the library would have to write this code bey well. The next logical step would be to just use .Equals on the entire metrics.
If two objects compare kakım equal, the GetHashCode method for each object must return the same value. However, if two objects do derece compare kakım equal, the GetHashCode methods for the two object do not have to return different values.
What does IEquatable buy you, exactly? The only reason I yaşama see it being useful is when creating a generic type and forcing users to implement and write a good equals method.
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...
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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.
Kemiksiz on a certain ortam, I'm compelled to issue the standard warning C# IStructuralEquatable nedir not 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.
He, makalede nekais mümkün. Bunu eleştiri olarak ikrar ediyorum. Işlevsel programlamada struct kullanılmasının nedenini de bilmiyor, performans ve sair konular üzerine da herhangi bir rey barındırmıtefsir. Siz biliyorsanız lütfen aydınlatır mkaloriız?
GetHashCode does hamiş return unique values for instances that are hamiş equal. However, instances that are equal will always return the same hash code.
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