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.
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 .
Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:
Default property. The second time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom NanComparer object. As the output from the example shows, the first three method calls return true, whereas the fourth call returns false.
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comparer IEqualityComparer An object C# IStructuralEquatable nedir that determines whether the current instance and other are equal.
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.
The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.
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When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable birey be useful.
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Do derece send hash codes across application domains or processes. In some cases, hash codes may be computed on a per-process or per-application domain basis.
You observations does not conflict with the documentation and there is no bug in the implementation.
Specifically, I do derece know the exact type of the object. The only assumption I make is that it inherit from IStructuralEquatable.