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Problem2 : Code Puzzle, What the problem is ?

Template

  • main.c : Prototype book library management code

Setup

gcc main.c -o main

Execution

./main

Instructions

You try to make a book library management program and main.c is a prototype code.

The book struct contains 54 bytes of data (30 bytes for title, 16 bytes for author, 4 bytes for volume_number and 4 bytes for ISBN).

To save the data, it support serialize and deserialize functions. (dump data to file)

But when you make a backup instance of the library, the code is not working properly.

You may take following problems in main() functions

  • Your backup file may larger than expected size (the_number_of_books × 54 bytes)
  • When deserialize data from file, some value may changed

TODO : Describe what is the problems and how to debug this code to work properly

  • Write down your opinion about why this bug happened in a few sentences
  • Rewrite the main.c to prevent unnecessary file size overhead and complete the implementation of serialization and de-serialization