Starting Out with C++ from Control Structures to Objects (8th Edition)
Starting Out with C++ from Control Structures to Objects (8th Edition)
8th Edition
ISBN: 9780133769395
Author: Tony Gaddis
Publisher: PEARSON
bartleby

Concept explainers

Question
Book Icon
Chapter 9.5, Problem 9.7CP
  1. A)
Program Plan Intro

Pointer:

Pointer, the name itself references the purpose of the pointer. Pointers point to a location in memory.

  • Pointer is a special type of variable to store the address of the memory location, which can be accessed later.
  • If an asterisk “*” operator is present before the variable, then that variable is referred as pointer variable.
    • It is also called as dereferencing or indirection operator.
  • Pointer is just a type of variable that stores the addresses of other variables.
  • Using pointers, we can access the address of a variable; the data stored in that variable can be retrieved.

Syntax of pointer variable declaration:

<variable-type> *<variable-name>;

Mathematical Operations that are allowed in a pointer:

  • The math operation that is allowed for a pointer variable is “addition” and “subtraction”.
    • Addition operation: The addition operation is performed using the “+”, “++”, “+=” operators.
    • Subtraction operation: The subtraction operation is performed using the “-”, “--”, “-=” operators.
  • The addition and subtraction operations are possible because the size of the pointer variable gets added or subtracted based on the data type it is being defined.
  • Other math operations such as “multiplication” and “division” cannot be performed on a pointer variable because there is a possibility of garbage value or unallocated out range value being returned.

  1. B)
Program Plan Intro

Pointer:

Pointer, the name itself references the purpose of the pointer. Pointers point to a location in memory.

  • Pointer is a special type of variable to store the address of the memory location, which can be accessed later.
  • If an asterisk “*” operator is present before the variable, then that variable is referred as pointer variable.
    • It is also called as dereferencing or indirection operator.
  • Pointer is just a type of variable that stores the addresses of other variables.
  • Using pointers, we can access the address of a variable; the data stored in that variable can be retrieved.

Syntax of pointer variable declaration:

<variable-type> *<variable-name>;

Mathematical Operations that are allowed in a pointer:

  • The math operation that is allowed for a pointer variable is “addition” and “subtraction”.
    • Addition operation: The addition operation is performed using the “+”, “++”, “+=” operators.
    • Subtraction operation: The subtraction operation is performed using the “-”, “--”, “-=” operators.
  • The addition and subtraction operations are possible because the size of the pointer variable gets added or subtracted based on the data type it is being defined.
  • Other math operations such as “multiplication” and “division” cannot be performed on a pointer variable because there is a possibility of garbage value or unallocated out range value being returned.

  1. C)
Program Plan Intro

Pointer:

Pointer, the name itself references the purpose of the pointer. Pointers point to a location in memory.

  • Pointer is a special type of variable to store the address of the memory location, which can be accessed later.
  • If an asterisk “*” operator is present before the variable, then that variable is referred as pointer variable.
    • It is also called as dereferencing or indirection operator.
  • Pointer is just a type of variable that stores the addresses of other variables.
  • Using pointers, we can access the address of a variable; the data stored in that variable can be retrieved.

Syntax of pointer variable declaration:

<variable-type> *<variable-name>;

Mathematical Operations that are allowed in a pointer:

  • The math operation that is allowed for a pointer variable is “addition” and “subtraction”.
    • Addition operation: The addition operation is performed using the “+”, “++”, “+=” operators.
    • Subtraction operation: The subtraction operation is performed using the “-”, “--”, “-=” operators.
  • The addition and subtraction operations are possible because the size of the pointer variable gets added or subtracted based on the data type it is being defined.
  • Other math operations such as “multiplication” and “division” cannot be performed on a pointer variable because there is a possibility of garbage value or unallocated out range value being returned.

  1. D)
Program Plan Intro

Pointer:

Pointer, the name itself references the purpose of the pointer. Pointers point to a location in memory.

  • Pointer is a special type of variable to store the address of the memory location, which can be accessed later.
  • If an asterisk “*” operator is present before the variable, then that variable is referred as pointer variable.
    • It is also called as dereferencing or indirection operator.
  • Pointer is just a type of variable that stores the addresses of other variables.
  • Using pointers, we can access the address of a variable; the data stored in that variable can be retrieved.

Syntax of pointer variable declaration:

<variable-type> *<variable-name>;

Mathematical Operations that are allowed in a pointer:

  • The math operation that is allowed for a pointer variable is “addition” and “subtraction”.
    • Addition operation: The addition operation is performed using the “+”, “++”, “+=” operators.
    • Subtraction operation: The subtraction operation is performed using the “-”, “--”, “-=” operators.
  • The addition and subtraction operations are possible because the size of the pointer variable gets added or subtracted based on the data type it is being defined.
  • Other math operations such as “multiplication” and “division” cannot be performed on a pointer variable because there is a possibility of garbage value or unallocated out range value being returned.

  1. E)
Program Plan Intro

Pointer:

Pointer, the name itself references the purpose of the pointer. Pointers point to a location in memory.

  • Pointer is a special type of variable to store the address of the memory location, which can be accessed later.
  • If an asterisk “*” operator is present before the variable, then that variable is referred as pointer variable.
    • It is also called as dereferencing or indirection operator.
  • Pointer is just a type of variable that stores the addresses of other variables.
  • Using pointers, we can access the address of a variable; the data stored in that variable can be retrieved.

Syntax of pointer variable declaration:

<variable-type> *<variable-name>;

Mathematical Operations that are allowed in a pointer:

  • The math operation that is allowed for a pointer variable is “addition” and “subtraction”.
    • Addition operation: The addition operation is performed using the “+”, “++”, “+=” operators.
    • Subtraction operation: The subtraction operation is performed using the “-”, “--”, “-=” operators.
  • The addition and subtraction operations are possible because the size of the pointer variable gets added or subtracted based on the data type it is being defined.
  • Other math operations such as “multiplication” and “division” cannot be performed on a pointer variable because there is a possibility of garbage value or unallocated out range value being returned.

Blurred answer
Students have asked these similar questions
c++   How do you declare a pointer that will hold an integer type?. Multiple choice.   int *p; int &p; int p; int* p;
3- It is not possible to change the value of the pointer. (True or False). 4- If the following lines of code have errors, correct them; otherwise, write "no errors." for (int i=2; i<5; i++) { int s=1*2; } cout << s; 5- A function cannot be called from inside another function. (True or False). 6- How to make a function return multiple values? 7- Every class member is by default. (public, private, not public nor private) 8- Create an instance of the following class and call its methods. class Exam{ int grade; public: void seta (int b) (grade=b; } int geta () {return grade; } 9- When the word const is put before the variable definition, what does that mean? 10- How to concatenate two strings in C++ language? C++
You can dereference a smart pointer with the * operator. True False

Chapter 9 Solutions

Starting Out with C++ from Control Structures to Objects (8th Edition)

Ch. 9.9 - Complete the following program skeleton. When...Ch. 9.9 - Look at the following array definition: const int...Ch. 9.9 - Assume ip is a pointer to an int. Write a...Ch. 9.9 - Prob. 9.14CPCh. 9.9 - Prob. 9.15CPCh. 9.9 - Prob. 9.16CPCh. 9.9 - Prob. 9.17CPCh. 9 - What does the indirection operator do?Ch. 9 - Look at the following code. int x = 7; int iptr =...Ch. 9 - So far you have learned three different uses for...Ch. 9 - Prob. 4RQECh. 9 - Prob. 5RQECh. 9 - Prob. 6RQECh. 9 - What is the purpose of the new operator?Ch. 9 - What happens when a program uses the new operator...Ch. 9 - Prob. 9RQECh. 9 - Prob. 10RQECh. 9 - Prob. 11RQECh. 9 - Prob. 12RQECh. 9 - Each byte in memory is assigned a unique...Ch. 9 - The _________ operator can be used to determine a...Ch. 9 - Prob. 15RQECh. 9 - The ________ operator can be used to work with the...Ch. 9 - Array names can be used as ________, and vice...Ch. 9 - Prob. 18RQECh. 9 - The ________ operator is used to dynamically...Ch. 9 - Under older compilers, if the new operator cannot...Ch. 9 - Prob. 21RQECh. 9 - When a program is finished with a chunk of...Ch. 9 - You should only use pointers with delete that were...Ch. 9 - Prob. 24RQECh. 9 - Look at the following array definition: int...Ch. 9 - Prob. 26RQECh. 9 - Assume tempNumbers is a pointer that points to a...Ch. 9 - Look at the following function definition: void...Ch. 9 - Prob. 29RQECh. 9 - Prob. 30RQECh. 9 - Prob. 31RQECh. 9 - T F The operator is used to get the address of a...Ch. 9 - T F Pointer variables are designed to hold...Ch. 9 - T F The symbol is called the indirection...Ch. 9 - T F The operator dereferences a pointer.Ch. 9 - T F When the indirection operator is used with a...Ch. 9 - T F Array names cannot be dereferenced with the...Ch. 9 - Prob. 38RQECh. 9 - T F The address operator is not needed to assign...Ch. 9 - T F You can change the address that an array name...Ch. 9 - T F Any mathematical operation, including...Ch. 9 - T F Pointers may be compared using the relational...Ch. 9 - T F When used as function parameters, reference...Ch. 9 - T F The new operator dynamically allocates memory.Ch. 9 - T F A pointer variable that has not been...Ch. 9 - Prob. 46RQECh. 9 - T F In using a pointer with the delete operator,...Ch. 9 - Prob. 48RQECh. 9 - Prob. 49RQECh. 9 - int x, ptr = nullptr; ptr = x;Ch. 9 - Prob. 51RQECh. 9 - Prob. 52RQECh. 9 - Prob. 53RQECh. 9 - float level; int fptr = level;Ch. 9 - Prob. 55RQECh. 9 - Prob. 56RQECh. 9 - Prob. 57RQECh. 9 - Prob. 58RQECh. 9 - int pint = nullptr; pint = new int[100]; //...Ch. 9 - Prob. 60RQECh. 9 - Prob. 61RQECh. 9 - Prob. 62RQECh. 9 - Array Allocator Write a function that dynamically...Ch. 9 - Test Scores #1 Write a program that dynamically...Ch. 9 - Drop Lowest Score Modify Problem 2 above so the...Ch. 9 - Test Scores #2 Modify the program of Programming...Ch. 9 - Prob. 5PCCh. 9 - Case Study Modification #1 Modify Program 9-19...Ch. 9 - Case Study Modification #2 Modify Program 9-19...Ch. 9 - Mode Function In statistics, the mode of a set of...Ch. 9 - Median Function In statistics, when a set of...Ch. 9 - Reverse Array Write a function that accepts an int...Ch. 9 - Array Expander Write a function that accepts an...Ch. 9 - Element Shifter Write a function that accepts an...Ch. 9 - Movie Statistics Write a program that can be used...
Knowledge Booster
Background pattern image
Computer Science
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
Text book image
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning