Car Catalogue Program

A C++ console application for storing, editing, validating, saving, and loading a catalogue of vehicles using a doubly linked list combined with a vector mirror for easy indexing.

Features

Catalogue Management

• Add new vehicles
• Edit existing vehicles
• Remove vehicles
• View full catalogue
• View single vehicle
• Move vehicle location in the linked list order

Data Structure

• Doubly linked list for in-memory ordering
• Vector mirror for quick access & loading
• Automatic index rebuilding after any modification

Saving & Loading

• Saves catalogue to CarCatalogue.txt

• Loads catalogue automatically on startup

• Pipe-delimited format (no external libraries required)

Input Validation

• getInt() — safe integer input

• getDouble() — safe double input

• getYN() — safe yes/no input

• getVIN() — fully validated 17-character VIN

• • VIN validation disallows:
    • I, O, Q
    • Non-alphanumeric characters
    • Any VIN not exactly 17 characters

Project Structure

Car-Catalogue[

  /headers[
      CarCatHeaders.h
      Cars.h
      CatFunc.h
      UsePuts.h
      Savld.h
      ValIndex.h

  ]
  
  /source[

      Car-Catalogue1.cpp[
          - main()
     ]

      CatFunc.cpp[
          - addCar()
          - repCar()
          - editCar()
          - deleteCar()
          - moveCar()
     ]

      UsePuts.cpp[
          - optionsMenu()
          - printCatalogue()
          - printCar()
          - findCar()
     ]

      Savld.cpp[
          - saveCatalogue()
          - loadCatalogue()
     ]

      ValIndex.cpp[
          - IndexUpdate()
          - getInt()
          - getDouble()
          - getYN()
          - isValidVin()
          - getVIN()
     ]

  ]
]

How the Program Works

1. On start, it attempts to load CarCatalogue.txt.

2. The main menu is displayed with options to:

   • Print the catalogue
   • View a specific car
   • Add a car
   • Edit a car
   • Delete a car
   • Save manually
   • Exit the program

3. All modifications update both:

   • The linked list
   • The vector
   • And re-index the entire catalogue using indexUpdate()

Building

Compile with:

 g++ -std=c++17 Car-Catalogue1.cpp CatFunc.cpp UsePuts.cpp Savld.cpp ValIndex.cpp -o CarCatalogue

Or use your IDE’s build system.

Future Improvements

• Full input validation integration (ongoing)
• Index reassignment menu (instead of manual editing)
• Optional CSV/JSON import/export
• Sorting by price, mileage, or owner
• Switch from manual memory management → smart pointers (std::unique_ptr)
• Replace linked list with std::list

License

This project is for learning purposes and has no specific license unless added later.