This video lecture is a practice of operator overloading concepts and tells how you can overload square brackets [ ] in C++. The square brackets is used to declare the array in C++. When square bracket is used then it tells to compiler that it is an array variable. When square bracket is overloaded then it will call as function call with object and index number. In this video lecture, square bracket is overloaded by using operator overloading concepts which return type is reference and it is passed an integer value. If the value is correct then return reference otherwise send an error message by using “cerr”. The “cerr” is used specially for print messages and it is worked under std stream.
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