/* display_grades.c
   Author: Murray Saul
   Date: April 1, 2008
   Purpose: To demonstrate reading data from a file

*/

#include<stdio.h>

#define NAME_SIZE 80 +1
#define STD_NUM_SIZE 11 + 1
#define CODE_SIZE 6 + 1
#define GRADE_LETTER_SIZE 3 + 1

main()
{

   FILE *fp_in;
   char name[NAME_SIZE];
   char studentNumber[STD_NUM_SIZE];
   char code[CODE_SIZE];
   char grade[GRADE_LETTER_SIZE];

   fp_in = fopen ( "grades.dat", "r");

   printf ("Here is proof from reading the file grades.dat:\n\n");

   if ( fp_in == NULL )
   {
      printf ("Error: the file grades.dat does not exist\n");
      exit (1);
   }
   else
   {
      while ( fscanf( fp_in, "%[^;];%[^;];%[^;];%[^\n]\n", name, studentNumber, code, grade) == 4)
    {
       printf ("%-20.30s%-5s\n", name, grade);
    }

   }
   printf ("\n\n");

   fclose(fp_in);

} /* End of main program */