Printing The Data Out

To print the data out, a similar method is used as that used to generate the data. The pointers are initialized and are then used to go from record to record reading and displaying each record one at a time. Printing is terminated when the NULL on the last record is found, so the program doesn’t even need to know how many records are in the list. Finally, the entire list is deleted to make room in memory for any additional data that may be needed, in this case, none. Care must be taken to assure that the last record is not deleted before the NULL is checked. Once the data is gone, it is impossible to know if you are finished yet.