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From: pcb@gator.cacs.usl.edu (Peter C. Bahrs)
Newsgroups: comp.lang.c++
Subject: A simple why doesn't this work?
Message-ID: <5315@rouge.usl.edu>
Date: 14 Mar 90 17:52:44 GMT
Sender: anon@rouge.usl.edu
Distribution: usa
Organization: The Center for Advanced Computer Studies, USL
Lines: 49

/********************************************/
#include <stream.h>
extern int strlen(char *);

class Demo {
   filebuf f;
   ostream *O;
public:
  void OpenForWrite (char* fname);
  void Write (char* str);
  void Close (void);
};

void Demo::OpenForWrite (char* fname)
{
   if (!f.open(fname,output)) 
      {
      cerr << "ERROR: Can't open file (" << fname << ")\n";
      exit(1);
      }
   O = new ostream(&f);
}
void Demo::Write(char* str)
{
cout << str;
(*O) << str;
}
void Demo::Close(void)
{
   f.close();
}


main()
{
Demo D;
D.OpenForWrite("file1");
D.Write("here it is\n");
D.Close();
}

/*----------- Thanks in advance... --------------------------------------+
| Peter C. Bahrs                                                         |
| The USL-NASA Project                                                   |
| Center For Advanced Computer Studies      INET: pcb@gator.cacs.usl.edu |
| 2 Rex Street                                                           |
| University of Southwestern Louisiana      ...!uunet!dalsqnt!gator!pcb  | 
| Lafayette, LA 70504                                                    |
+-----------------------------------------------------------------------*/