A c++ project combine struct, vector, userdefine function, static and file I/O together

[terenceliang]

Hello, I am a C++ beginner just started to learn, I got a question from my book and I do not have any idea how to start. Can anyone please help me? Thank you in advance.

Here are the questions:

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write a project which include:
1. At least one struct or class
2. At least four user-defined (member or non-member) functions
3. Vector
4. Use 'static' variable or function overloading
5. File I/O
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I have an idea that I will create a list 3 books into a txt files, then my program will read the 3 book titles from the txt file and create a vector. (File output)

For the struct part, I am thinking I can assign the writer, and price as the preferences of the 3 books.

I will also use static to count how many changes I made to the book's preferences.

Lastly I don't know what to do about the file input.

Again, I am sorry that I did not ask for specific topic, instead I need some direction on how to construct the program.

I am very appreciate for anyone can help.

[troll warlord]

Hi, let's discuss this.

I have an idea that I will create a list 3 books into a txt files, then my program will read the 3 book titles from the txt file and create a vector. (File output)

Nice Idea

or the struct part, I am thinking I can assign the writer, and price as the preferences of the 3 books.

I'm not quite sure what you mean here, perhaps you want to create
a structure with writer and price as the members ? something like:

struct Book {
    string writer;
    double price;
    // Don't forget the title
};

Lastly I don't know what to do about the file input.

You might want to create functions to read and write Books to a file, something like:

vector<Book> readFromFile(istream& is);
void         writeToFile (const vector<Book>& books, ostream& os);
void         writeToFile (const Book& book, ostream& os); // function overload for a single book 

[terenceliang]

troll warlord,

Thank you for replying and helping me. I am trying to reconstruct my idea to make it more simple.