QUESTIONS.md

Questions and Answer

just some questions that come to my mind while writing code, their answers and how i found them.

1. Return type of binary operator overloading

what should be the return type of binary operator overloading? a new instance of class which can be assgined to result instance Vector<T> Vector::operator+(Vector<T>& other) ? or a reference to result instance from method implementation Vector<T>& Vector::operator+(Vector<T> & other)?

1. for assigment operator(=) return a reference and takes const reference as parameter since we need not change the value that's provided (Vector q = p), p should be passed as const reference

2. the + operator returns a const instance, not a const reference. always use compound assignment operatos to implement binary overloaded operators.

Caltech C++ operator overloading guidelines

• When overloading the addition operator (+), it is common practice to return a new instance of the class rather than a Vectorer or reference. This approach ensures that the result of the addition is a distinct, independent object, which aligns with the expected behavior of the + operator in C++. (chatgpt)