why use two overload operator and if i am not use overload operator then whats happen and how to write code without using overloading operator
Unordered map hash function
hello @vishal_sangal_123
compiler dont know how to compare two student objects, so its user responsibiltiy to define explicitly how to compare them , that is why we are overloading == operator .
at the time of searching, comaprision between two students will be required so there == (overloaded function) will be used.
for custom classes , it is mandatory to overload.
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