Starting Out with C++: Early Objects
8th Edition
ISBN: 9780133360929
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: Addison-Wesley
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Chapter 10, Problem 20RQE
Explanation of Solution
Returning a pointer from the function:
Pointers can be returned from the function only if the reference pointer variable exists in the function.
Circumstance for successful return of a pointer:
The circumstances for returning pointer successful are listed below:
- When a pointer is passed as an argument in a function that is called.
- When a pointer variable is defined locally within the function there may be possibility for the contents of the variables being destructed after execution of the function...
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Under what circumstances can you successfully return a pointer from a function?
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Chapter 10 Solutions
Starting Out with C++: Early Objects
Ch. 10.5 - Prob. 10.1CPCh. 10.5 - Write a statement defining a variable dPtr. The...Ch. 10.5 - List three uses of the symbol in C++.Ch. 10.5 - What is the output of the following program?...Ch. 10.5 - Rewrite the following loop so it uses pointer...Ch. 10.5 - Prob. 10.6CPCh. 10.5 - Assume pint is a pointer variable. For each of the...Ch. 10.5 - For each of the following variable definitions,...Ch. 10.10 - Assuming array is an array of ints, which of the...Ch. 10.10 - Give an example of the proper way to call the...
Ch. 10.10 - Complete the following program skeleton. When...Ch. 10.10 - Look at the following array definition: const int...Ch. 10.10 - Assume ip is a pointer to an int. Write a...Ch. 10.10 - Assume ip is a pointer to an int. Write a...Ch. 10.10 - Prob. 10.15CPCh. 10.10 - Prob. 10.16CPCh. 10.10 - Prob. 10.17CPCh. 10.12 - Prob. 10.18CPCh. 10.12 - Assume the following structure declaration exists...Ch. 10.12 - Prob. 10.20CPCh. 10 - Each byte in memory is assigned a unique _____Ch. 10 - The _____ operator can be used to determine a...Ch. 10 - Prob. 3RQECh. 10 - The _____ operator can be used to work with the...Ch. 10 - Prob. 5RQECh. 10 - Creating variables while a program is running is...Ch. 10 - Prob. 7RQECh. 10 - If the new operator cannot allocate the amount of...Ch. 10 - Prob. 9RQECh. 10 - When a program is finished with a chunk of...Ch. 10 - You should only use the delete operator to...Ch. 10 - What does the indirection operator do?Ch. 10 - Look at the following code. int X = 7; int ptr =...Ch. 10 - Name two different uses for the C++ operator.Ch. 10 - Prob. 15RQECh. 10 - Prob. 16RQECh. 10 - Prob. 17RQECh. 10 - What is the purpose of the new operator?Ch. 10 - What happens when a program uses the new operator...Ch. 10 - Prob. 20RQECh. 10 - Prob. 21RQECh. 10 - Prob. 22RQECh. 10 - Prob. 23RQECh. 10 - Prob. 24RQECh. 10 - Consider the function void change(int p) { P = 20;...Ch. 10 - Prob. 26RQECh. 10 - Write a function whose prototype is void...Ch. 10 - Write a function void switchEnds(int array, int...Ch. 10 - Given the variable initializations int a[5] = {0,...Ch. 10 - Prob. 30RQECh. 10 - Prob. 31RQECh. 10 - Test Scores #1 Write a program that dynamically...Ch. 10 - Test Scores #2 Modify the program of Programming...Ch. 10 - Prob. 3PCCh. 10 - Prob. 4PCCh. 10 - Pie a la Mode In statistics the mode of a set of...Ch. 10 - Median Function In statistics the median of a set...Ch. 10 - Movie Statistics Write a program that can be used...Ch. 10 - Days in Current Month Write a program that can...Ch. 10 - Age Write a program that asks for the users name...
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- Note: Write programs in c language format use in programs (Printf & Scanf)arrow_forwardC Program Functions using Pointers Create a function modify that accepts an integer and divides the integer by 2 if it is even. If the integer is odd, add one and divide it by 2. The function does not return anything. In the main function, write a program that asks for an integer input and call the modify function by passing in the reference of that variable as a parameter. An initial code is provided for you. Just fill in the blanks. Input 1. One line containing an integer input Output Enter a number: 5 Before: 5 After: 3arrow_forwardExplain the various operations possible on pointer with examplearrow_forward
- When passing many arguments to a function, does it matter in what sequence those arguments are passed?arrow_forwardUsing C++ Programming language: Assume you want a function which expects as parameters an array of doubles and the size of the array. Write the function header that accepts these parameters but is defined in such a way that the array cannot be modified in the function. You can use your own variable names for the parameters.arrow_forwardTRUE or FALSE - In C++, a function can't return a pointer. Select one: a.FALSE b.TRUEarrow_forward
- How to call function using pointer. Please Explain with Code Example?arrow_forwardHow do you declare a pointer variable? Does a local pointer variable have a default value?arrow_forwardpointers as Arguments:In the C programming language there is no pass-by-reference syntax to passa variable by reference to a function. Instead a variable is passed by pointer(just to be confusing, sometimes passing by pointer is referred to as pass byreference). This Practice Program asks you to do the same thing as C.Here is the header for a function that takes as input a pointer to an integer:1. void addOne (int ∗ptrNum )Complete the function so it adds one to the integer referenced by ptrNum.Write a main function where an integer variable is defined, give it an initialvalue, call addOne, and output the variable. It should be incremented by 1.arrow_forward
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