What do you understand by 'operator overloading'? How does an operator

overloading feature can negatively affect a programming language despite its

obvious usefulness?

Answer: Operator overloading is used for the user-defined field for expression definition of objects, structures etc in programming. It does not work in built in data types field such as char, float etc.

Example - +,=,[] etc

This feature can be put a negative impact in programming field by operators, as "+" operator is used for the summing up the integers but in the case of characters, this operator will creates a link in series between them. This acts as drawback for operator overloading.