When a variable is described as a reference it becomes an alias of the already existing variable. In simple terms, a referenced variable is another named variable of an existing variable keeping in mind that changes made in the reference variable will be reflected in the already existing variable. A reference variable is preceded with a ‘&’ symbol.
Sandhya Answered question June 26, 2023
Value types are sometimes viewed from the perspective of memory and layout control, whereas reference types are about base classes and virtual functions for polymorphic purposes. By default, value types are copyable, which means there’s always a copy constructor and a copy assignment operator
Sandhya Answered question June 26, 2023