4.11 Padding and Alignment

It is often the case in binary formats that certain elements are separated by some data that is not really used for any meaningful purpose other than occupy that space. The reason for keeping that space varies from case to case; sometimes to reserve it for future use, sometimes to make sure that the following data is aligned to some particular alignment. This is known as padding. There are several ways to implement padding in GNU poke. This article shows these techniques and discusses their advantages and disadvantages.