访问私有类C ++内部的结构

Question

I am lost in trying to figure out how to access this struct that is inside of the private part of the class. II would need the code to stay as a struct if that is possible. Thanks very much for the help.

const int MAX_CHAR = 101;
const int NAME_COURSE_WIDTH = 20;
const int DESCRIPTION_WIDTH = 40;
const int DUE_DATE_WIDTH = 20;
const int COURSE_ENTRY_CAPACITY = 100;

class Task
{
private:
    struct CourseEntry
    {
        char course[MAX_CHAR];
        char description[MAX_CHAR];
        char dueDate[MAX_CHAR];
    } course;
public:


    void displayMenu();
    char readInCommand();
    void processCommand(char command, CourseEntry list[], int& listSize);
    void readInEntry(CourseEntry& anEntry);
    void readInCourse(char course[]);

    //database related functions
    void displayAll(const CourseEntry list[], int listsize); 
    void addEntry(const CourseEntry& anEntry, CourseEntry list[], int& listSize);
    bool searchEntry(const char course[], CourseEntry& match, const CourseEntry list[], int listSize);

    void loadCourseEntry(const char fileName[], CourseEntry list[], int& listSize);
    void saveCourseEntry(const char fileName[], const CourseEntry list[], int listSize);

    //standard input tools
    int readInt(const char prompt[]);
    void readString (const char prompt[], char inputStr[], int maxChar);
};

Answer 1

You should move the definition of the struct outside the class, and just keep the variable private:

struct CourseEntry
{
    char course[MAX_CHAR];
    char description[MAX_CHAR];
    char dueDate[MAX_CHAR];
}

class Task {
    private:
       CourseEntry course;

    public:

        ...
}

Answer 2

It will be better and nicer and will keep encapsulation if you declare your CourseEntry structure public in the class Task and every time you use it just put the class name before like this Task::CourseEntry .

So for example a call in main will be (C++11 style):

 Task myTask;
 //initialize somehow your struct 
 Task::CourseEntry myStruct = {//here you can do it
                              };
 //call readInEntry
 myTask.readInEntry(myStruct);`