int CLASS canon_s2is()
{
  unsigned row;

  for (row=0; row < 100; row++) {
    fseek (ifp, row*3340 + 3284, SEEK_SET);
    if (getc(ifp) > 15) return 1;
  }
  return 0;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.