Pointers have been the popular choice among programmers when it comes to using memory in an optimized way. Pointers have made it possible to access the content of any variable, array, or data type. You can use pointers for low-level access to any content and improve the overall performance of an application.

In this chapter, we will look at the following recipes on pointers:

• Reversing a string using pointers
• Finding the largest value in an array using pointers
• Sorting a singly linked list
• Finding the transpose of a matrix using pointers 
• Accessing a structure using a pointer

Before we start with the recipes, I would like to discuss a few things related to how pointers work.