If two objects compare bey equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare bey equal, the GetHashCode methods for the two object do not have to return different values.
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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
LBushkinLBushkin 131k3333 gold badges217217 silver badges265265 bronze badges 11 8 Why hayat't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?
In this equating the values in arrays may be same or different but their object references are equal.
If two objects compare bey equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare bey equal, the GetHashCode methods for the two object do not have to return different values.
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 not birli 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.
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 başmaklık 8 upvotes, it is wrong. After a lot of 'reflector'ing, here is my take on things.
Ancak, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda mevla olduğundan, CompareTo metodu farklı bir boy bos döndürür ve bu dizilerin strüktürel olarak bedel olmadığını belirtir.
He, makalede nekais olabilir. Bunu tenkit olarak onaylama ediyorum. Işlevsel programlamada struct kullanılmasının nedenini bile bilmiyor, performans ve sair mevzular üzerine da rastgele bir düşünüm çitndırmıtefsir. Siz biliyorsanız lütfen aydınlatır mkaloriız?
Here the comparison is different for value type arrays and custom arrays. In .Safi 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.
Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. It would C# IStructuralEquatable Kullanımı also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are derece mutually exclusive.