PC^2/pc2admin/samps/sumit.cpp

   1
   2 //
   3 // File:    sum1.cpp
   4 // Purpose: to sum the integers in the file sumit.dat
   5 // Author:  pc2@ecs.csus.edu or http://www.ecs.csus.edu/pc2
   6 //
   7 // Sat Oct 30 12:43:18 PDT 1999
   8 //
   9 // caveat - this is not nice code, copy at own risk ;)
  10 //
  11 // $Id: sumit.cpp,v 1.1 2005/03/06 05:13:57 laned Exp $
  12 //
  13 //
  14
  15 #include <iostream.h>
  16 #include <fstream.h>
  17
  18 main ()
  19 {
  20         int num;
  21         int sum;
  22         ifstream filein("sumit.dat");
  23
  24         if (filein.fail())
  25         {
  26                 cerr << "Could not read from file sumit.dat " << endl;
  27         }
  28         else
  29         {
  30
  31                 sum = 0;
  32
  33                 while(!filein.eof())
  34                 {
  35                         filein >> num;
  36
  37                         if (num > 0)
  38                         {
  39                                 sum += num;
  40                         }
  41                 }
  42
  43                 cout << "The sum of the positive integers is " << sum << endl;
  44
  45         }
  46 }
  47
  48 // eof