How to put strings and integers from file into a multidimensional-array?

Question

Lets say there is a competition, and we have x races, and y contestants. Each race, every contestant gets a point between 0 and 10. So there is a file, looking something like this( without the dots, of course):

Chet 10 Katie 8 Mark 3 Rachel 5
Chet 3 Katie 9 Mark 6 Rachel 8
Chet 6 Katie 6 Mark 7 Rachel 0

My problem is that here the strings and integers are alternating, and I dont know how to put them into the multidimensional-array.

Below is how I would do this, if there were only integers in a file. Is it possible to modify this so I can use it with my program?

string x;
int score,row=0,column=0;
int marray[10][10] = {{0}};
string filename;
ifstream fileIN;
cout<<"Type in the name of the file!"<<endl;
cin>> filename;
fileIN.open(filename);
while(fileIN.good())    //reading the data file
{
    while(getline(fileIN, x))
    {
        istringstream stream(x);
        column=0;
        while(stream >> score)
        {
            marray[row][column] = score;
            column++;
        }
        row++;
    }
}

David G · Accepted Answer · 2014-04-07 22:23:58Z

2

Array (even multidimensional array) are homogeneous, all the entry must be of the same type. This property let the CPU to compute the address of any entry of the array with a simple displace operation.

In your case you want to store a string and a integer. So you can simple use a struct as entry of your array.

struct Result {
  Result() : point(0)
  {}
  std::string contestantName;
  unsigned int point;
};

Result results[10][10];

the rest of the code is really similar of what you have written.

edited Apr 7, 2014 at 22:23

David G

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answered Apr 7, 2014 at 22:20

ilmale

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