The Data Definitions

This program starts similarly to the last two with the addition of the definition of a constant to be used later. The structure is nearly the same as that used in the last two programs except for the addition of another field within the structure, the pointer. This pointer is a pointer to another structure of this same type and will be used to point to the next structure in order. To continue the above analogy, this pointer will point to the next note, which in turn will contain a pointer to the next note after that.

We define three pointers to this structure for use in the program, and one integer to be used as a counter, and we are ready to begin using the defined structure for whatever purpose we desire.In this case, we will once again generate nonsense data for illustrative purposes.