The this pointer is accessible (i) Within all the member functions of the class (ii) Only within functions returning void (iii) Only within non-static functions (iv) Within the member functions with zero arguments
The this pointer is accessible (i) Within all the member functions of the class (ii) Only within functions returning void (iii) Only within non-static functions (iv) Within the member functions with zero arguments
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:### Understanding the 'this' Pointer in C++
The `this` pointer in C++ is a powerful and commonly used feature within classes. Here are some crucial points where the `this` pointer is accessible:
1. **Within all the member functions of the class**
2. **Only within functions returning void**
3. **Only within non-static functions**
4. **Within the member functions with zero arguments**
**Explanation:**
- **Point (i)** implies that the `this` pointer is available in every member function of the class.
- **Point (ii)** is incorrect because the `this` pointer is not restricted to functions returning void.
- **Point (iii)** indicates that the `this` pointer is only available within non-static member functions.
- **Point (iv)** is incorrect as the number of arguments a member function accepts does not affect the accessibility of the `this` pointer.
In summary, the `this` pointer is a special mechanism used in non-static member functions of a class to point to the object for which the member function is called. Understanding where and how the `this` pointer can be used is pivotal for efficient class design and management in C++.
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