Thread: ARGH! fstream errors

I keep getting "expression must be integral or enum data type" on the fstreams in this code . I'm guessing its something with the way I'm handling wiritng to the binary file (I'm having to use an OLD unix compiler for this class so bear in mind its old non standard stuff)

Code:

#include <fstream.h>
#include <ctype.h>

  struct employee
   {
   char id[3],
        fname[10],
        lname[10],
        salary[10];
   };

int main (void)
{

  fstream fin,
          foutbad,
          foutgood;  
       
  fin.open("hwk07.txt", ios::in);
  foutgood.open("hwk07.bin", ios::out);
  foutbad.open("errorlog.txt", ios::out);
  
  void readfile (fstream&, fstream&, fstream&);

  
  readfile (fstream& fin, fstream& foutgood, fstream& foutbad);

  return 0;
} // main


// *** readfile ***
void readfile (fstream& fin, fstream& foutgood, fstream& foutbad)
{
  employee goodemployee[100],
           bademployee[100],
           temp;
  
  int goodcounter = 0,
      badcounter = 0,
      i;
  
      
  bool checkresult,
       checkdata (employee&);   

  void writefiles (fstream&, employee&);
    
  while (fin >> temp.id)
   {
    fin >> temp.fname >> temp.lname >> temp.salary;
    checkresult = checkdata(employee& temp);
    
    if (checkresult)
     {
      goodemployee[goodcounter] = temp;
      goodcounter++;
     } // if
    
    else
     {
      bademployee[badcounter] = temp;
      badcounter++;
     } // else
   } // while

  if (badcounter != 0)
   {
    cout << "File contained " << badcounter << "erroneous record(s).";
   } // if
   
  for (i = 0; i <= goodcounter && goodcounter > 0; i++)
   {
    if (goodemployee[i].id > goodemployee[i+1].id)
     {
      temp = goodemployee[i+1];
      goodemployee[i+1] = goodemployee[i];
      goodemployee[i] = temp;
     } // if
   } // for

  writefiles (fstream& foutgood, employee& goodemployee);
  writefiles (fstream& foutbad, employee& bademployee);

} // readfile

// *** checkdata ***
bool checkdata (employee& temp)
{
  bool result = true;
  int i;
  
  for (i = 0; i < 4 && result == true; i++)
   {
    if (isalpha(temp.id[i]) == true )
     result = false;
    if (ispunct(temp.id[i]) == true )
     result = false;
   } // for
   
  for (i = 0; i < 10 && result == true; i++)
   {
    if (isalpha(temp.salary[i]) == true )
     result = false;
   } // for
  return result;
} // checkdata

// *** writefiles ***
void writefiles (fstream& fout, employee& data)
{
  fout << "Programmed by:\nAaron Friedley\nChris Reynolds\nLena King\n\n"
       << "\tSalary Data\n ID      Name      Salary";

  fout << data.id << "    " << data.fname << ", " << data.lname << "    "
       << data.salary;
}