/* Filename:  makeemp.cpp

   Author:  Br. David Carlson

   Date:  February 4, 1998

   Last Revised:  February 21, 2013

   This program creates a binary file of employee records.  The data for
   the records is read from the keyboard and written to this binary file,
   called emp.dat.  The user presses CTRL z to end data entry.  (Substitute
   CTRL d in Linux.)

   Tested with:
      Microsoft Visual C++ 2008
      g++ under Linux
*/

// iostream is included indirectly via employee.h
#include <fstream>     // needed for files
#include "employee.h"  // needed for EmployeeType

void WriteToFile(fstream & OutFile);


int main(void)
   {
   fstream OutFile;

   OutFile.open("emp.dat", ios::out | ios::binary);
   if (OutFile.fail())
      {
      cerr << "Could not create file emp.dat" << endl;
      exit(1);
      }

   WriteToFile(OutFile);
   OutFile.close();   // very important to close an output file
   return 0;
   }


/* Given:   OutFile   A binary file stream already opened for output.
   Task:    To read records of employee data from the user, writing them to OutFile.
   Return:  OutFile   The modified file stream.
*/
void WriteToFile(fstream & OutFile)
   {
   int RecordSize, Result;
   EmployeeType Employee;

   RecordSize = sizeof(Employee);
   Result = ReadEmployee(Employee);

   while (Result == OKFlag)
      {
      OutFile.write(reinterpret_cast <char *> (&Employee), RecordSize);
      Result = ReadEmployee(Employee);
      }
   }