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 31RQE
Program Plan Intro
Shared pointers:
- Shared pointers are used in managing the ownership of the dynamically allocated object.
- Shared pointers are used when there are one or more owners available for the objects that are allocated dynamically.
Example:
The below snippet illustrates the usage of the shared pointer that manages different object:
//usage of the shared pointer for the object stu1
shared_ptr<Student> stu1(new Student ());
//usage of the shared pointer for the object stu2
shared_ptr<Student> stu2(new Student ("George", 95));
Explanation:
In general in the above code, the execution is carried out by making two separate memory allocation:
- Allocate the control block
- Allocate memory for the object Student that needs to be managed.
When making separate allocation could incur significant overhead problems, in order to avoid the above problem the make shared function is used to efficiently allocate the memory.
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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...
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