array not reading data from file in c++ -

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i have program uses 2d array store values. have 2 questions. first program isnt reading data text file correctly. when prints out numbers in array, zeros. wrong code?

#include "stdafx.h" #include<iostream> #include<fstream>  using namespace std;  int ary [][13];  ofstream outfile; ifstream infile("nameavg.txt");  //function prototype void readit (int [][13]); // function call  readintoarraybyrows(ary); void writeprintoutarray (int [][13]);  int main() {     //open/creates file print     outfile.open ("myoutfile.txt");      // title , heading      outfile << "\nname , grade average\n";     cout << "name , grade average.\n\n";      // open , reads .txt file array     readit(ary);     outfile<<"\n-----------------------------"<<endl;     cout<<"\n-----------------------------"<<endl;      writeprintoutarray(ary);     outfile<<"\n-----------------------------"<<endl;     cout<<"\n-----------------------------"<<endl;      //closes .txt file     outfile.close();     cin.get();     cin.get();     return 0; }  void writeprintoutarray(int ary[][13]) {     int col,         row;     for(row=0;row<2;row++)     {     for(col=0;col<8;col++)     {         ary[2][13];         cout<<ary[row][col];         outfile<<ary[row][col];     }     cout<<endl;     outfile<<endl;     }  }   void readit(int ary[][13])  {     int col,         row=0;      while(infile>>ary[row][0])     {     for(col=1;col<13;col++)     {         infile>>ary[row][col];         row++;     }     infile.close();     }  }

my second question can single 2d array hold both char data type , int type? or have data in .txt file char , convert numbers ints?

an example of how appreciated.

first bug: declaration of ary isn't reserving space. must give number both dimensions.

second, can make array of 2 different things putting things in structure.

struct {     char c;     int i; };  ary [max_rows][13];

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