STARTING OUT WITH C++ MPL
9th Edition
ISBN: 9780136673989
Author: GADDIS
Publisher: PEARSON
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Chapter 10, Problem 32RQE
Program Plan Intro
Shared pointers:
- A “shared_ptr” is a smart pointer which maintains shared ownership of an object using pointer.
- Shared pointers are used in managing the ownership of the dynamically allocated object.
- Shared pointers are used by more than one owner available for the objects that are allocated dynamically.
Example:
The following code illustrates the use and creation of shared pointer:
//creating a shared pointer of integer data type
shared_ptr<int> sDPtr1 (new int);
//creating an array of shared pointer
shared_ptr<int[]> sDPtr2 (new int[5]);
Explanation:
In the above code snippet, a smart pointer of integer data type is assigned directly.
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#include<iostream>using namespace std;void main(){double pi = 0, denominator = 1;int counter = 999999;for (int x = 0; x < counter; x++){if (x % 2 != 0){pi = pi - (1 / denominator);}else{pi = pi + (1 / denominator);}denominator = denominator + 2;}pi = pi * 4;cout << " So the computed value of a PI is = " << pi << endl;cout << " ";//return 0;system("pause");}
Note:
This a program called ComputePI to compute the value of π
Tutor just have to Modify This program to use nested-if (if ... else if ... else if ... else) instead.
Explain by applying a double line comment
4. Create the following getter methods
a. Getter method for firstname (use ? getFirstnamel )).
b. Getter method for lastname ( use ? getlastname() ).
c. Getter method for userld ( use ? getUserld(O).
d. Getter method for totalUsers (use ? getTotalUsers() ).
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Chapter 10 Solutions
STARTING OUT WITH C++ MPL
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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