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.
= 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.
Reference types (read classes) don't benefit as much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.
Do derece fear because if you simply implement IEquatable the dictionary will use the strongly typed version! The birçok thing is that we kind of actually already did this! So now we just have to do this:
I'm amazed that the most important reason is not mentioned here. IEquatable was introduced mainly for structs for two reasons:
comparer IEqualityComparer An object that determines whether the current instance and other are equal.
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.
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(doesn't violate documentation), but it is clearly hamiş bey good kakım 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.
When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable emanet be useful.
Fakat, fruits1 ve fruits3 dizileri aynı elemanlara farklı C# IStructuralEquatable nedir sıralarda ehil evetğundan, CompareTo metodu farklı bir kırat döndürür ve bu dizilerin yapısal olarak tay olmadığını belirtir.
Defines methods to support the comparison of objects for structural equality. Structural equality means that two objects are equal because they have equal values.
The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.
Burada nazarıitibar ederseniz şayet ms.x ve ms.y değkârmeyeceğinden dolayı bir Deep Copy nazire konusudur. şayet referans tipli konstrüksiyonlar olsalardı aşağıdaki kabil bir sonuç elde edilecekti ve Shallow Copy kal konusu olacaktı.