For Loops and Fscanf

I am trying to get this program that will read 5 integers from a file using fscanf, and I have to somehow embed that into a for-loop. I understand how fscanf works, but have no idea on how to embed it into a loop. testdata9 has the 5 integers.


I have no idea what to do after this.

Code:

#include <stdio.h>

int main( ){

  int a, b, c, d, e;
  FILE *testdata9;
  testdata9 = fopen("testdata9.c", "r");

  for(fscanf(testdata9, "&#37;d %d %d %d %d", &a, &b, &c, &d, &e)){
    
  }
  return 0;
}

I'm assuming testdata.c looks like this:

523
17
4343532
...etc

You actually want a while loop and a numeric array (the "for" in this just provides some output):

Code:

#include <stdio.h>

int main () {
        int a[5], i=0, x;
        FILE *fstin=fopen("testdata.c", "r");
        if (fstin == NULL) {puts("Couldn't fopen..."); return -1;}
        
        while ((fscanf(fstin, "%d", &a[i])) != EOF) i++;
        close(fstin);
        for (i=0; i<5; i++) printf("%d\n",a[i]);
}

An array would've been easier, but the problem wants a for loop without the use of an array.

It shouldn't look much different if you modify MK's example to use a for loop. (Except MK's example should also close the file with fclose().)

Though I still don't know how to do it without an array.

Read one number, do something with it, repeat.