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I've looked for overriding guidelines for structs, but all I can find is for classes.
At first I thought I wouldn't have to check to see if the passed object was null, as structs are value types and can't be null. But now that I come to think of it, as equals signature is
public bool Equals(object obj) it seems there is nothing preventing the user of my struct to be trying to compare it with an arbitrary reference type.
My second point concerns the casting I (think I) have to make before I compare my private fields in my struct. How am I supposed to cast the object to my struct's type? C#'s as keyword seems only suitable for reference types.
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You can override the equals method on a record, if you want a behavior other than the default. But if you do override equals , be sure to override hashCode for consistent logic, as you would for a conventional Java class.
We can override the equals method in our class to check whether two objects have same data or not.
The String class overrides the equals method it inherited from the Object class and implemented logic to compare the two String objects character by character. The reason the equals method in the Object class does reference equality is because it does not know how to do anything else.
In a class, if you overload the Equals method, you should overload the == and != operators, but it is not required.
struct MyStruct { public override bool Equals(object obj) { if (!(obj is MyStruct)) return false; MyStruct mys = (MyStruct) obj; // compare elements here } } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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