Loading text files

    

#include <iostream>
#include <fstream>

int main()
{
    using namespace std;

    const int MAX_XBOUND = 10;
    const int MAX_YBOUND = 10;

    // declare and initialise the array to 0's

    int array[MAX_XBOUND][MAX_YBOUND];
    memset(array, 0, sizeof(array));

    // open the file

    fstream    myfile("C:\\textfile.txt", ios::in);

    // read the values from the text file using the whitespace as

    // a delimiter

    if(!myfile.fail())
    {
        for(int i = 0; (i < MAX_XBOUND) && !myfile.eof(); ++i)
        {
            for(int j = 0; (j < MAX_YBOUND) && !myfile.eof(); ++j)
            {
                myfile >> array<i>[j];
            }
        }
    }

    // close the input file

    myfile.close();
	
    // print out the values

    for(int i = 0; i < MAX_XBOUND; ++i)
    {
        for(int j = 0; j < MAX_YBOUND; ++j)
        {
            cout << array[i][j] << " ";
        }
	
        cout << endl;
    }

    return 0;
}

    

  
#include <stdio.h>

#define MAP_X 10
#define MAP_Y 10

int main()
{
   int map[MAP_X][MAP_Y]; /*map array*/
   int x,y;               /*position counters for loading map array*/
   FILE *fp;              /*pointer to the file with map data*/

   fp = fopen("io_exmpl.txt","r");/*open file with read-only access*/

   if (!fp) return 0; /*if couldn''t open the file,shut program down*/

   /*read the text file, convert numeric characters to integers*/
   /*and load them into the array*?
   for(x = 0; x < MAP_X; x++)
   {
      for(y = 0; y < MAP_Y; y++)
      {
         if (fscanf(fp,"%d",↦[x][y]) == EOF)break; /*EOF == -1*/
      }
   }

   /*we''re done with the text file, close it*/
   fclose(fp);

   /*that''s all you need to load your file into an array of integers*/
   /*the code below just allows you to look at array elements*/
   
   int another = 1;
   
   while(another != 0)
   {
      printf("\nEnter x: ");
      scanf("%d",&x);
      printf("Enter y: ");
      scanf("%d",&y);

      if ((x >= 10) || (x < 0) || (y >= 10) || (y < 0))
      {
         printf("Invalid array position. Shutting it down.\n");
         return 0;
      }
      else
      {
         printf("\nArray element at this position is %d.",map[x][y]);
         printf("\n\nEnter 1 check another position or 0 to quit: ");
         scanf("%d",&another);
      }
   }

   return 0;
}