Description: Pointer comparison in C++ refers to the process of evaluating the relationship between two pointer variables, which are variables that store memory addresses. This process is fundamental in C++ programming, as it allows determining whether two pointers point to the same memory location, whether one is greater or less than the other, or if they are null. Pointer comparison is performed using relational operators such as ‘==’, ‘!=’, ‘<', '>‘, ‘<=', and '>=’. These operators enable programmers to make logical decisions based on the relationship between the memory addresses that the pointers represent. It is important to note that pointer comparison is not limited to checking for equality; it can also be used to navigate through dynamic data structures, such as linked lists and trees, where the relationship between nodes is crucial. Additionally, pointer comparison is essential in memory management, as it allows developers to ensure that invalid memory areas are not accessed, which could lead to runtime errors or security vulnerabilities. In summary, pointer comparison is a key feature in C++ that provides programmers with precise control over memory manipulation and application logic.
