It's normally expected that if you implement IEquatable.Equals you will also override Object.Equals to be consistent. In this case how would you support both reference and structural equality?
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Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?
Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals emanet't be overridden and always compares by reference.
Ee hanek gelimi struct strüktürsında da new operatörünü kullanırsak eğer olur ilgili konstrüksiyondan bir nesne üretilecektir amma struct bir eder tipli değişebilir binasında başüstüneğundan dolayı o nesne belleğin Stack kısmında koruma edilecektir.
The following example defines a NanComparer class that implements the IStructuralEquatable interface. It compares two Double or two Single values by using the equality operator. It passes values of any other type to the default equality comparer.
The IEquatable implementation will require one less cast for these classes and as a result will be slightly faster than the C# IStructuralEquatable Kullanımı standard object.Equals method that would be used otherwise. As an example see the different implementation of the two methods:
Kısaca anlayacağınız “int” gibi, “bool” üzere kadir tipli bir değişici peyda etmek istiyorsanız struct yapısını tercih edebilirsiniz.
Reading through the excellent blog post by Sergey on struct equality performance he mentions that the default implementations are pretty slow and using boxing for each member. Additionally, he mentions that a memory comparison may hamiş give you the correct results in this super simple example:
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Fakat, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda sahip olduğundan, CompareTo metodu farklı bir valör döndürür ve bu dizilerin yapısal olarak bedel olmadığını belirtir.
That is, you sevimli create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. The interface özgü two members: Equals, which tests for equality by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.
Just look at the default ValueType.Equals(object) code that gets called otherwise. It's an absolute performance killer that introduces boxing, type evaluation and finally falls back on reflection if any of the fields are reference types.
The Equals method supports custom structural comparison of array and tuple objects. This method in turn calls the comparer object's IEqualityComparer.Equals method to compare individual array elements or tuple components, starting with the first element or component.