Sample Procedures Used in My Implementation of Payroll Project

I realize that the logic used in the Payroll program Part 2 may be unfamiliar to you, so the following code is offered as a sample, from the main module. The main program lets the user enter a period ending date. It searches for the date in the Payroll file. For each matching Payroll record, the program locates a matching record in the Employee file (using the Employee ID number). Payroll data for each employee are calculated and displayed. Four-digit years are used on all dates. Each Payroll object contains a Date object, defined by the Date class--see the hypertext link from the October lecture notes page.

#include <fstream.h>
#include <conio.h>
#include <stdlib.h>
#include "employee.h"
#include "payroll.h"

/* Search for the first record in the Employee file having a 
   matching Employee ID. If found, return the Employee object
   initialized with data from the file, and return boolean True. */

bool LookForEmployee( Employee & E, ifstream & efile )
{
  Employee temp(E);               // make a copy

  while( !efile.eof() )
  {
    efile >> E;
    if( temp.GetId() == E.GetId() )
      return true; 
  }
  return false;
}

void wait()
{
  cerr << "\nPress any key to continue...";
  getch();
  cerr << endl;
}


/* Given a date to find, search for all records in the Payroll
   file having the same date. When each is found, use its employee ID
   to find a matching Employee record. Return true if the date was
   found, false otherwise. */

void LookForDate( ifstream & efile, ifstream & pfile )
{
  bool wasFound = false;
  long dateToFind;

  cout << "Enter a Period Ending Date (yyyymmdd format): "; 
  cin >> dateToFind;
  cout << '\n';

  while( !pfile.eof())
  {
    Payroll P;
    pfile >> P;
    if( P.GetEndingDate().EqualTo(dateToFind) )
    { 
      Employee E( P.GetEmpId() );
      if( LookForEmployee( E, efile ))
      {
        E.SetPayroll( P );    // store Payroll object inside Employee
        E.ShowReport( cout );
        wait();
      }
      wasFound = true;
    }
  }
  if( !wasFound )
    cout << "That period ending date was not found." << endl;
}

// Open both input file streams, return false if either 
// cannot be opened.

bool OpenInputFiles( ifstream & efile, ifstream & pfile )
{
  efile.open( "employee.txt", ios::in | ios::nocreate );
  if( !efile )
  {
    cerr << "Employee file not found; cannot continue.\n";
    return false;
  }
  
  pfile.open("payroll.txt", ios::in | ios::nocreate );
  if( !pfile )
  {
    cerr << "Payroll file not found; cannot continue.\n";
    return false;
  }
  return true;
}


int main()
{
  cout.setf( ios::fixed | ios::showpoint );
  cout << setprecision(2);

  cout << "Employee Payroll Program (Exercise 4.8.2, Part 2)" << endl;

  ifstream efile;
  ifstream pfile;  
  if( !OpenInputFiles( efile, pfile )) return -1;
    
  LookForDate( efile, pfile );
  
  return 0;
}