Reading a file into a struct array

Question

Having troubles reading a file into a struct without eof. I have all of the needed includes in my .h file and I am getting an error that says "IntelliSense: no operator ">>" matches these operand"

struct Courses
{
    string mCourseID;
    double mCourseNumber;
    double mMaxCapacity;
    double mCurrentEnroled;
};

Courses addCourse(istream &File);


Courses addCourse(istream &File)
{
    Courses sData;

    File >> sData.mCourseID;
    File >> sData.mCourseNumber;
    File >> sData.mCurrentEnroled;
    File >> sData.mMaxCapacity;

    return sData;
 }

void readCourses(Courses sCourses[], ifstream &File, int &numCourses)
{
    while (addCourse(File) >> sCourses[numCourses])
    {

        numCourses++;
    }
}

man, this program is so academic, so many things could go wrong that they don't expect you to handle. — Ryan
– Ryan, Commented Feb 29, 2016 at 1:52

WhiZTiM · Accepted Answer · 2016-02-29 01:49:11Z

3

I think, you want to change the signature of addCourse to this...

istream& addCourse(istream &File, Courses& sData)
{
    File >> sData.mCourseID;
    File >> sData.mCourseNumber;
    File >> sData.mCurrentEnroled;
    File >> sData.mMaxCapacity;

    return File;
}

Then, modify your other function with these modifications...

void readCourses(Courses sCourses[], ifstream &File, int &numCourses)
{
    while (addCourse(File, sCourses[numCourses]))
    {
        numCourses++;
    }
 //......

But again, is your array sCourses big enough to hold as many Courses you will input? Or will you put a stopping condition? ...rethink your program logic.

answered Feb 29, 2016 at 1:49

WhiZTiM

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1 Comment

Nark Over a year ago

That worked! Thanks so much! The limit will be ten courses, it should be fine!

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