Question

what are the advatages of passing arguments by refrence​

Answer 1

Answer:

Advantages of passing by reference:

References allow a function to change the value of the argument, which is sometimes useful. Otherwise, const references can be used to guarantee the function won’t change the argument.

Because a copy of the argument is not made, pass by reference is fast, even when used with large structs or classes.

References can be used to return multiple values from a function (via out parameters).

References must be initialized, so there’s no worry about null values.

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