Starting Out with C++: Early Objects (9th Edition)
9th Edition
ISBN: 9780134400242
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: PEARSON
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Chapter 10, Problem 26RQE
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Smart pointer:
In C++, a smart pointer is an object that may work like pointer but it has an ability to delete the memory which is dynamically allocated after its usage.
- It is an abstract data type that similar as a pointer, includes additional features like dynamic memory management.
- While using pointer, a problem like “dangling pointer” can be raised. A dangling pointer is a pointer which points a memory that has been freed, which means the storage is not allocated. Trying to access this kind of memory may cause segmentation fault.
- This problem can be reduced using smart pointers...
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Describe Operations on Pointer Variables.
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Chapter 10 Solutions
Starting Out with C++: Early Objects (9th Edition)
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 - Prob. 25RQECh. 10 - Prob. 26RQECh. 10 - What happens when a unique_ptr that is managing an...Ch. 10 - What does the get ( ) method of the unique_ptr...Ch. 10 - Prob. 29RQECh. 10 - Prob. 30RQECh. 10 - Prob. 31RQECh. 10 - Prob. 32RQECh. 10 - Consider the function void change(int p) { P = 20;...Ch. 10 - Prob. 34RQECh. 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 - Each of the following declarations and program...Ch. 10 - Prob. 39RQECh. 10 - Test Scores #1 Write a program that dynamically...Ch. 10 - Test Scores #2 Modify the program of Programming...Ch. 10 - Indirect Sorting Through Pointers #1 Consider a...Ch. 10 - Indirect Sorting Through Pointers #2 Write a...Ch. 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...Ch. 10 - Prob. 10PC
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- pointers 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_forwardWhen you move the pointer too quickly, a phenomena known as "submarining" might take place, in which the pointer vanishes.arrow_forwardIn C++, When an array is passed to a function as a pointer, the function doesn't know the size of the array. List 3 ways to handle this problem.arrow_forward
- Shared pointers keep a count of all of the shared pointers that appear in the program code. True Falsearrow_forwardc++ programming language given the following variable declaration: double avg; write the required commands to declare a pointer, and then use it to display the value of the variable avg.arrow_forwardC++ Array Expander -Just do everything in main and make sure you comment each step Use Pointer Notation for the function and within the function. Use a main function and return the pointer from the ArrayExpander function to mainarrow_forward
- c++ How do you declare a pointer that will hold an integer type?. Multiple choice. int *p; int &p; int p; int* p;arrow_forwardwhat is grades pointer ?arrow_forward1. Pointer Tasks This part of the assignment will give you a chance to perform some simple tasks with pointers. The instructions below are a sequence of tasks that are only loosely related to each other. Start the assignment by creating a file named pointerTasks.cpp with an empty main function, then add statements in main() to accomplish each of the tasks listed below. Some of the tasks will only require a single C++ statement, others will require more than one. For each step, include a comment in your program indicating which step you are completing in the following statement(s). The easiest way to do this is copy and paste the below into your main function first, and then fill in your statements. // 1. Create two integer variables named x and y// 2. Create an int pointer named p1// 3. Store the address of x in p1// 4. Use p1 to set the value of x to 99// 5. Using cout and x, display the value of x// 6. Using cout and the pointer p1, display the value of x// 7. Store the address…arrow_forward
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