When using custom class with sets, maps we only overload the < operator or we define a functor class and pass it. There we were not overloading the == operator for the custom class. There we had find() method in sets and maps which also match two objects. But there we were not overloading == operator.
But why do we then need to overload == in case of unordered map?? How do maps and sets compare two objects then??
Why overload == operator in case of unordered sets?
Hey @gaganwalia212
Compiler has zero idea about user defined datatype , so it is always our responsibility to teach compiler how to hash it or how to compare them etc.
And that is why we are overloading == here as well
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