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.
In certain scenarios (such as using the value type kakım a key in a dictionary) it can murder performance in one foul swoop.
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 güç't you just specify an IEqualityComparer yourself that does this? What does the IStructuralEquatable interface add to this?
Bildiğiniz kabil new cerrahü classlarda kullanıldığı devir müteallik classtan bir nesne istem edilmekte ve üretilen nesne belleğin Heap kısmında korunum edilmektedir.
The generic tuple classes (Tuple, Tuple, Tuple, and so on) and the Array class provide explicit implementations of the IStructuralEquatable interface. By casting (in C#) or converting (in Visual Basic) the current instance of an array or tuple to an IStructuralEquatable interface value and providing your IEqualityComparer implementation as an argument to the C# IStructuralEquatable Kullanımı Equals method, you kişi define a custom equality comparison for the array or collection.
What does IEquatable buy you, exactly? The only reason I güç 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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To achieve this, employee objects with matching SSN properties would be treated kakım logically equal, even if they were derece structurally equal. Share Improve this answer Follow
The example on MSDN gives part of the answer here; it seems to be useful for heterogeneous equality, rather than homogeneous equality - i.e. for testing whether two objects (/values) of potentially different types
GetHashCode does not return unique values for instances that are not equal. However, instances that are equal will always return the same hash code.
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