passing arguments by reference is declared using the symbol

Passing arguments b reference is declared using the symbol below y A, && C ll Page

Solution

Passing By Reference :&
& is used as function and its is usefull, constant reference type used only when function doesn\'t changes the argument.
It can be used in large structs and classes.
It should be initialized and not having null values.
One can only determine a argument by looking through the function declaration.