/* Filename:  makefile.cpp

   Author:  Br. David Carlson; Br. Isidore Minerd

   Date:  October 25, 2004; July 16, 2009

   This program reads floating point numbers from the keyboard and
   writes them to the readfile.txt text file.  The numbers should be
   entered one at a time, as prompted.  Use CTRL z to end data input
   when using Visual C++ on a PC.  You may need to press ENTER a couple
   of times.  However, this must be changed to using CTRL d when
   using g++ under Linux, as CTRL d is the Unix/Linux end of file.
   It will also terminate when non-float data is input.

   Tested with:
      Microsoft Visual C++ 6.0
      Microsoft Visual C++ .NET
      Microsoft Visual Studio 2008
      g++ under Linux
*/

#include <iostream>
#include <fstream>
using namespace std;


int main(void)
   {
   float Num;
   fstream OutFile;

   OutFile.open("readfile.txt", ios::out);
   if (OutFile.fail())
      {
      cout << "Open of readfile.txt failed" << endl;
      exit(1);
      }

   // Warning: Change this to CTRL d for Linux:
   cout << "Enter a floating point number (or CTRL z to end): " << endl;
   cin >> Num;

   while (! cin.fail())
      {
      // Process the data:
      OutFile << Num << endl;
      // Warning: Change this to CTRL d for Linux:
      cout << "Enter a floating point number (or CTRL z to end): " << endl;
      cin >> Num;
      }

   OutFile.close();
   
   return 0;
   }