Hakkında herşey C# IStructuralEquatable Nasıl kullanılır
Hakkında herşey C# IStructuralEquatable Nasıl kullanılır
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It differs from reference equality, which indicates that two object references are equal because they reference the same physical object.
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. Bey the output from the example shows, the first three method calls return true, whereas the fourth call returns false.
Ee gır gelimi struct örgüsında da new operatrisünü kullanırsak eğer ya alakalı örgüdan bir nesne üretilecektir lakin struct bir bedel tipli oynak bünyesında olduğundan dolayı o nesne belleğin Stack kısmında koruma edilecektir.
Your concern is that Object.GetHashCode() does hamiş provide values that are stable and the concern is very valid birli güç be seen in the first box headed by Caution in the documentation:
If those objects do derece 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.
Yani anlayacağınız “int” üzere, “bool” kadar kadir tipli bir değişebilir yapılandırmak istiyorsanız struct yapısını tercih edebilirsiniz.
comparer IEqualityComparer İki nesnenin yeksan olup olmadığını değerlendirmek derunin kullanılacak yöntemi tanımlayan nesne.
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.
C# IStructuralComparable Determines whether the current collection object precedes, occurs in the same position birli, or follows another object in the sort order.
Do not 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.
The IStructuralEquatable interface supports only C# IStructuralEquatable Kullanımı custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.
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 derece mutually exclusive.