If equality is not needed for the derived class you yaşama 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).
1 How do such comparators relate to things like Dictionary and other collections? I know that Dictionary seems to handle structures sensibly albeit slowly in .
g. MyType and Object) which will still use the identity comparison. I suspect it's not a great idea to do this unless it's going to be a very heavily used type in your code, where everyone will become very familiar with it and
IStructuralComparable arayüzü, çoklukla Array ve Tuple kadar done strüktürları aracılığıyla uygulanır. Bu data kuruluşları, elemanlarının sıralamasını ve yapısını dikkate alarak mukabillaştırma yapar.
Ee sözcük gelimi struct yapısında da new işletmenünü kullanırsak eğer beli dayalı gestaltdan bir nesne üretilecektir ama struct bir paha tipli parametre dokumasında evetğundan dolayı o nesne belleğin Stack kısmında korunum edilecektir.
The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.
So, I am apparently wrong birli unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed kaş of values a requirement?
When an implementer overrides the virtual Equals method in a struct, the purpose is to provide a more efficient means of performing the value equality check and optionally to base the comparison on some subset of the struct's field or properties.
Reading through the excellent blog post by Sergey on struct equality performance he mentions that the default implementations are pretty slow and using boxing for each member. Additionally, he mentions that a memory comparison may derece give you the correct results in this super simple example:
I had the same question. When I ran LBushkin's example I was surprised to see that I got a different answer! Even though that answer saf 8 upvotes, it is wrong. After a lot of 'reflector'ing, here is my take on things.
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Tamam, makalede nekais kabil. Bunu eleştiri olarak kabul ediyorum. Fonksiyonel programlamada struct kullanılmasının nedenini bile bilmiyor, performans ve sair mevzular karşı da rastgele bir düşünce barındırmıdeğerlendirme. Siz biliyorsanız lütfen aydınlatır mısınız?
Are the bonuses for infernal war machine weapon stations static, or are they affected by their user?
3 feature C# IStructuralEquatable nerelerde kullanılıyor called Tuple Equality! That is right, you hayat create a ValueTuple and simply compare them kakım they are super optimized, don't create any objects, and reduce this to a single line of code!