1   // Fig. 14.6: Fig14_06.cpp
 2   // Reading and printing a sequential file.
 3   #include <iostream>
 4   #include <fstream> // file stream        
 5   #include <iomanip>
 6   #include <string>
 7   #include <cstdlib>
 8   using namespace std;
 9
10   void outputLine( int, const string &, double ); // prototype
11
12   int main()
13   {
14      // ifstream constructor opens the file          
15      ifstream inClientFile( "clients.txt", ios::in );
16
17      // exit program if ifstream could not open file
18      if ( !inClientFile )
19      {
20         cerr << "File could not be opened" << endl;
21         exit( EXIT_FAILURE );
22      } // end if
23
24      int account; // the account number
25      string name; // the account owner's name
26      double balance; // the account balance
27
28      cout << left << setw( 10 ) << "Account" << setw( 13 )
29         << "Name" << "Balance" << endl << fixed << showpoint;
30
31      // display each record in file
32      while ( inClientFile >> account >> name >> balance )
33         outputLine( account, name, balance );
34   } // end main
35
36   // display single record from file
37   void outputLine( int account, const string &name, double balance )
38   {
39      cout << left << setw( 10 ) << account << setw( 13 ) << name
40         << setw( 7 ) << setprecision( 2 ) << right << balance << endl;
41   } // end function outputLine