What does it mean when a reference is returned?

It means you return by reference, which is, at least in this case, probably not desired. It basically means the returned value is an alias to whatever you returned from the function. Unless it’s a persistent object it’s illegal.

What happens when a function is returned?

When a return statement is used in a function body, the execution of the function is stopped. If specified, a given value is returned to the function caller. For example, the following function returns the square of its argument, x , where x is a number.

Can you return by reference in C?

Short answer: Yes, C does implement parameter passing by reference using pointers.

What do you mean by reference variable and returning reference?

The major difference is that the pointers can be operated on like adding values whereas references are just an alias for another variable. When function returns a reference it means it returns a implicit pointer.

Can function return address of local variable in C?

Once the function returns it does not exist anymore and hence you should not return the address of a local variable. In other words the lifetime of a is within the scope( { , } ) of the function and if you return a pointer to it what you have is a pointer pointing to some memory which is not valid.

Which type of function is used if we want to return an array from function?

Returning array by passing an array which is to be returned as a parameter to the function. Returning array using malloc() function. In the above code, we have created the variable arr[] as static in getarray() function, which is available throughout the program.

How do you return an array from a vector function?

Return a Vector From a Function in C++

1. Use the vector func() Notation to Return Vector From a Function.
2. Use the vector &func() Notation to Return Vector From a Function.

What is a function that returns a function called?

A return is a value that a function returns to the calling script or function when it completes its task. A return value can be any one of the four variable types: handle, integer, object, or string.