Programming Tutorial
C Tutorial 6 – An introduction to pointers
Pointers are an extremely powerful programming tool. They can make some things much easier, help improve your program’s efficiency, and even allow you to handle unlimited amounts of data. For example, using pointers is one way to have a function modify a variable passed to it. It is also possible to use pointers to dynamically allocate memory, which means that you can write programs that can handle nearly unlimited amounts of data on the fly–you don’t need to know, when you write the program, how much memory you need. Wow, that’s kind of cool. Actually, it’s very cool, as we’ll see in some of the next tutorials. For now, let’s just get a basic handle on what pointers are and how you use them.
C Tutorial 6 – An introduction to pointers