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Chapter 6: Problem 27

When used as parameters, _________ variables allow a function to access the parameter’s original argument.

Short Answer

Expert verified
Answer: Reference variables

Step by step solution

01

Understanding the concept of a variable used as a parameter in a function

A variable that is used as a parameter in a function is essentially an input that the function takes to perform its task. It allows the function to have access to the data that is passed to it when the function is called.
02

Identifying the type of variable required for accessing the original argument

The type of variable that is required here is one that can directly access or reference the original argument. This type of variable is called a 'reference variable.'
03

Completing the exercise

Now that we know the type of variable required, we can complete the sentence in the exercise. The completed sentence should be: When used as parameters, reference variables allow a function to access the parameter’s original argument.

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Most popular questions from this chapter

. T F A stub is a dummy function that is called instead of the actual function it represents.

If a function doesn’t return a value, the word _________ will appear as its return type.

T F Initialization of static local variables only happens once, regardless of how many times the function in which they are defined is called.

Write a function named get Number that uses a reference parameter variable to accept an integer argument. The function should prompt the user to enter a number in the range of 1 through 100. The input should be validated and stored in the parameter variable. True or False

Each of the following functions has errors. Locate as many errors as you can. (Overloaded functions) int getvalue () \\{ int inputvalue; cout \(<<\) "Enter an integer: " cin \(>>\) inputvalue return inputvalue; \\} double getvalue() \\{ double inputvalue; cout \(<<\) "Enter a floating-point number: " cin \(>>\) inputvalue; return inputvalue; }
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