Starting Out With C++: Early Objects, Student Value Edition (9th Edition)
9th Edition
ISBN: 9780134379319
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Overload the following operators.
>
<
<=
Which C++ header file must be included in order to make advantage of OOP?
Which property (2) makes open recursion possible?
Need help with a c++ building block question! Nongraded
Implement the copy assignment operator= for the StringVar class using the options given on the right side window. Place the code into the left side using the arrows. It is possible to get the test case correct but not complete
NOTE: Be careful! There are decoys! The this pointer is used extensively..
Assume that StringVar.h has the following declaration:
#include <iostream>
class StringVar {public:StringVar() : max_length(20) { // Default constructor size is 20value = new char[max_length+1];value[0] = '\0';}StringVar(int size); // Takes an int for sizeStringVar(const char cstr[]); // Takes a c-string and copies itStringVar(const StringVar& strObj); // Copy Constructor~StringVar(); // Destructorint size() const { return max_length; } // Access capacityconst char* c_str() const { return value; } // Access valueint length() const { return strlen(value); } // Access lengthStringVar& operator= (const StringVar&…
Chapter 10 Solutions
Starting Out With C++: Early Objects, Student Value Edition (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
Knowledge Booster
Similar questions
- If a pointer is not pointing anywhere, it’s recommended you have it point to nothing. This is accomplished using NULL in C, as with int *p = NULL Why do you think that is a good idea? Explain your answer.arrow_forwardWrite a statement that calls the recursive function BackwardsAlphabet() with parameter startingLetter. #include <iostream>using namespace std; void BackwardsAlphabet(char currLetter){if (currLetter == 'a') {cout << currLetter << endl;}else{cout << currLetter << " ";BackwardsAlphabet(currLetter - 1);}} int main() {char startingLetter; startingLetter = 'z'; /* Your solution goes here */ return 0;} Please help me with this problem using c++.arrow_forwardModular Programming: Your program should be modular and consists of the following functions: a) read(): - Ask the user for a valid atomic number (Z) b) compute_binding_energy(Z, table): - Build the table (a list of lists) of binding energy where the columns are: the mass number (A), the binding energy (Eb) and the binding energy per nucleon (BEN), while the rows range from A = Z to A = 4Z c) most_stable(table) : - Find and return the row that contains the highest binding energy per nucleon, which corresponds to the most stable configuration. d) print_table(table): - Print the table in a neat tabular format as shown in the sample run in figure 2. e) write_to_file(table, file_name): - Save the table in a text file output.txt as shown in figure 3. 4 f) main(): - The main function is set up to make the calls to the functions as specified in points a) to e)arrow_forward
- template specialization question Create a template specialization to test for string and pointers-to-char string s = plus("he", "llo"); const char* sl = "aaa"; const char* s2 = "bbb"; char* s3 = plus(sl, s2) // is char* s3 not const char* s3arrow_forward**The solution must be using pointer ** withoutarrow_forwardC++ PROGRAMMINGTopic: HashTable - PolyHash Quadratic Explain the c++ code below.: SEE ATTACHED PHOTO FOR THE PROBLEM INSTRUCTIONS It doesn't have to be long, as long as you explain what the important parts of the code do. (The code is already implemented and correct, only the explanation needed). You can also explain line by line for an upvote, thanks. EXPLAIN THE CODE BELOW: #include <cstdlib> #include <math.h> #include <cstring> #include <iostream> using namespace std; class HashTable { string* table; int N; int count; // TODO: Polynomial Hash Code using a=7 int hash_code(string key) { int code; int hash = 0; for (int i = 0; i < key.size(); i++) { char ch = key[i]; code += ((ch - 96) * pow(7, key.size() - (i + 1))); } return code; } // TODO: This hash table uses a MAD compression function // where a = 11, b = 461, p = 919 int compress(int code) { return (((11*code)+461) % 919) % N; }…arrow_forward
- Please implement the follwoing problem in C++: Implement a symbol balance checker function for the Pascal programming language. Pascal allows for the following pairs: {}, (), [], begin end . All programs will begin with the word "begin" and end with the word "end". Your function should receive an ifstream object which is already open and will return true, all of the symbols match, or false, they do not. You do not have to worry about comments in the program but you do have to avoid other parts of the program's code such as assignment statements (x=y) and other expressions.arrow_forwardin c++, Over load unary pre fix operator that first take a vale ,decrement it first then multiply it with other two number and display result that reflect the effect of decrement operator.arrow_forwardAn elif provision is constantly required, assuming that you have an if proviso in your code. T OR F PYTHONarrow_forward
- In C programming, if the return type of a function is Void how can you implement assert statements? For example, Void ceasar(int n, char*x); //if char = c and n = 3 output == f how do i use assert statements as this does not work assert (caesar(3,c)==f);arrow_forwardWrite a complete C++ code that inputs a character array (string) from a user. After taking input it callsa function Reverse() that reverses the string word by word as shown below:Original Character Array:Raining in summers makes your life prettyAfter calling Function Reverse():pretty life your makes summers in RainingNote: You have to use pointers in the function. You can use any builtin Cstring function of your choice for thistask.arrow_forward(Numerical) Write a program that tests the effectiveness of the rand() library function. Start by initializing 10 counters to 0, and then generate a large number of pseudorandom integers between 0 and 9. Each time a 0 occurs, increment the variable you have designated as the zero counter; when a 1 occurs, increment the counter variable that’s keeping count of the 1s that occur; and so on. Finally, display the number of 0s, 1s, 2s, and so on that occurred and the percentage of the time they occurred.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr