For this chapter’s assignment you are going to modify the program so it works with an inventory file instead of an array of structures. You will still keep the BookData structure declarations you created in Chapter 11. However, it will now be used to define the records in the file
Include the appropriate header file and decide where you want to define the file stream object for the inventory file. One approach is to define a global file stream object. Another approach is to define the object only in the functions that need to open the file, and then pass references to it to functions that need to work with the file.
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