fgets/sscanf

[Tango Charlie]

I'm trying to get this program to open and read a *.txt file and save in an array in traditional C. CLASS is defined as "filename.txt" in the header file. It reads from the file, I think, but it is nothing but garbage. Please offer suggestions...

 
#include "cl_info.h"
 
void get_class_data(struct student class[])
{
   char   last_name[MAXWORD];
   char   line[MAXLINE];
   int    cnt;
   int    i = 0;
   int    n;
   FILE   *ifp;
 
   ifp = fopen(CLASS, "r");
   if (ifp == NULL) {
      printf("\nCannot open %s - Goodbye!\n\n", CLASS);
      exit(1);
   }
   for (i = 0; fgets(line, MAXLINE, ifp) != NULL; ++i){
       cnt = sscanf_s(line, "%s%d %c",
           last_name, &class[i].student_id, &class[i].grade);
       assert(cnt == 3);
       n = strlen(last_name);
       class[i].last_name = calloc(n + 1, sizeof(char));
       assert(class[i].last_name != NULL);
       strcpy(class[i].last_name, last_name);
   }
   if (i != CLASS_SIZE) {
      printf("\n%s\n\n",
         "ERROR: Unexpected class size in %s - Goodbye!\n\n", CLASS);
      exit(1);
   }
}
 
 

I can't wait to understand this language!

[RedSon]

Questions about reading and parsing text files in C has been asked and answered hundreds of times. What resources have you been able to find on this web site and by searching google, and google groups?