Hakkında C# IStructuralEquatable Temel Özellikleri
Hakkında C# IStructuralEquatable Temel Özellikleri
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If two objects compare as equal, the GetHashCode method for each object must return the same value. However, if two objects do not compare kakım equal, the GetHashCode methods for the two object do not have to return different values.
= 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.
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:
As far bey I see this is only exposed through the StructuralComparisons class. The only way I yaşama figure out to make this useful is to make a StructuralEqualityComparer helper class as follow:
This code technically works, but is sort of a hot mess and is hamiş really maintainable. Anyone using the library would have to write this code as well. The next logical step would be to just use .Equals on the entire metrics.
The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.
Is Légal’s reported “psychological trick” considered fair play or unacceptable conduct under FIDE rules?
We hayat also make our own container play well with these other containers by implementing these interfaces.
The first issue we see here is that this struct is mutable in that you kişi actually change the veri later on via the set properties. There was no real reason that we introduced this except that we were used to it.
In all my years of development and blogging I never thought I would be writing about how amazing a C# struct is, how awesome IEquatable is, and how C# 7 features make implementing all of it mind blowing.
Fakat, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda iye başüstüneğundan, CompareTo metodu farklı bir eder döndürür ve bu dizilerin yapısal olarak denktaş olmadığını belirtir.
Bu binaya denli oluşturduğumuz bütün C# IStructuralEquatable nedir nesnelerin Heap kısmında bulunduğunu söylemiştik. Halbuki Stack kısmında struct kuruluşsında nesneleri tutabilmekteyiz.
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Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. It would also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are hamiş mutually exclusive.