What Does Functor Mean?
A functor is a type of class in C++ that acts like a function. Experts point out that a functor is created by overloading the operator and passing one argument the way that one would to a conventional function, albeit with different results.
Techopedia Explains Functor
One way to talk about the use of a functor is that functors work as an alternative to global variables in passing more than one argument through a single parameter. Functors may be used in combination with standard template libraries in order to achieve these types of results.
