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// Fig. 14.14: fig14_14.cpp
// Reading a random access file.
#include <iostream>
using std::cout;
using std::endl;
using std::ios;
using std::cerr;
using std::left;
using std::right;
using std::fixed;
using std::showpoint;
#include <iomanip>
using std::setprecision;
using std::setw;
#include <fstream>
using std::ifstream;
using std::ostream;
#include <cstdlib>
#include "clientData.h" // ClientData class definition
void outputLine( ostream&, const ClientData & );
int main()
{
ifstream inCredit( "credit.dat", ios::in );
// exit program if ifstream cannot open file
if ( !inCredit ) {
cerr << "File could not be opened." << endl;
exit( 1 );
} // end if
cout << left << setw( 10 ) << "Account" << setw( 16 )
<< "Last Name" << setw( 11 ) << "First Name" << left
<< setw( 10 ) << right << "Balance" << endl;
ClientData client; // create record
// read first record from file
inCredit.read( reinterpret_cast< char * >( &client ),
sizeof( ClientData ) );
// read all records from file
while ( inCredit && !inCredit.eof() ) {
// display record
if ( client.getAccountNumber() != 0 )
outputLine( cout, client );
// read next from file
inCredit.read( reinterpret_cast< char * >( &client ),
sizeof( ClientData ) );
} // end while
return 0;
} // end main
// display single record
void outputLine( ostream &output, const ClientData &record )
{
output << left << setw( 10 ) << record.getAccountNumber()
<< setw( 16 ) << record.getLastName().data()
<< setw( 11 ) << record.getFirstName().data()
<< setw( 10 ) << setprecision( 2 ) << right << fixed
<< showpoint << record.getBalance() << endl;
} // end outputLine
/**************************************************************************
* (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice *
* Hall. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
* consequential damages in connection with, or arising out of, the *
* furnishing, performance, or use of these programs. *
*************************************************************************/
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