main.cpp

#include "MyMenuBoard.h"
#include <fcntl.h>
#include <iostream>
#include <list>
#include <string>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

using namespace std;

int main(void)
{

    // 학생들의 정보를 입력받고, 연결 리스트에 저장
    list<MenuBoard> menuList;
    while (1)
    {

        string name = "";
        cout << "<< Menu Name: (input \'q\' to terminate): ";
        cin >> name;

        if (name.compare("q") == 0)
        {
            cout << ">> Terminate input." << endl;
            break;
        }

        double option = -1.0;
        cout << "<< Option: ";
        cin >> option;
        if (option > 4 || option < 1)
        { //&& -> ||
            cout << ">> Please Input 1 to 4." << endl;
            break;
        }

        string input;
        cout << "<< Price: ";
        cin >> input;

        int price = stoi(input);

        MenuBoard stu(name, option, price);
        menuList.push_back(stu);
        cout << ">> Successfully added to list!" << endl;
    }

    // 입력된 학생들의 정보를 저장할 파일 열기
    string filepath = "./MenuBoardList.dat";

    int fd = open(filepath.c_str(), O_CREAT | O_APPEND | O_WRONLY, 0644);
    if (fd == -1)
    {
        perror("open() error");
        return 1;
    }
    // 학생들의 정보를 파일에 순차적으로 저장하기
    list<MenuBoard>::iterator iter;
    for (iter = menuList.begin(); iter != menuList.end(); ++iter)
    {
        if (write(fd, &(*iter), sizeof(MenuBoard)) == -1)
        {
            perror("write() error");
            return 2;
        }
    }

    cout << ">> " << menuList.size()
         << " MenuBoards' info was successfully saved to the " << filepath
         << endl;

    close(fd);

    return 0;
}

// cd "/Users/song._.327/Documents/Cplus/CC/HW1/HW1_2018734021/" && g++
// -std=c++17 HW1_2018734021.cpp MyDoubleVector.cpp -o MyDoubleVector &&
// "/Users/song._.327/Documents/Cplus/CC/HW1/"MyDoubleVector