Dynamic Variable Creation

The first program statement, which assigns something to the pointer "pet1" will create a dynamic structure containing three variables. The heart of the statement is the "malloc" function buried in the middle of the statement. This is a "memory allocate" function that needs the other things to completely define it. The "malloc" function, by default, will allocate a piece of memory on a "heap" that is "n" characters in length and will be of type character. The "n" must be specified as the only argument to the function. We will discuss "n" shortly, but first we need to define a "heap".