1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// Fig. 14.7: fig14_07.cpp
// Reading and printing a sequential file.
#include <iostream>
using std::cout;
using std::cin;
using std::ios;
using std::cerr;
using std::endl;
using std::left;
using std::right;
using std::fixed;
using std::showpoint;
#include <fstream>
using std::ifstream;
#include <iomanip>
using std::setw;
using std::setprecision;
#include <cstdlib> // exit prototype
void outputLine( int, const char * const, double );
int main()
{
// ifstream constructor opens the file
ifstream inClientFile( "clients.dat", ios::in );
// exit program if ifstream could not open file
if ( !inClientFile ) {
cerr << "File could not be opened" << endl;
exit( 1 );
} // end if
int account;
char name[ 30 ];
double balance;
cout << left << setw( 10 ) << "Account" << setw( 13 )
<< "Name" << "Balance" << endl << fixed << showpoint;
// display each record in file
while ( inClientFile >> account >> name >> balance )
outputLine( account, name, balance );
return 0; // ifstream destructor closes the file
} // end main
// display single record from file
void outputLine( int account, const char * const name,
double balance )
{
cout << left << setw( 10 ) << account << setw( 13 ) << name
<< setw( 7 ) << setprecision( 2 ) << right << balance
<< endl;
} // end function 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. *
*************************************************************************/
|
