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

void main(){
   ofstream fout;
   ifstream fin;

   fout.open("tstname.txt");
   fout << "Kenneth L Moore " << endl;
   fout.close();
   fin.open("tstname.txt");
   //fin >> name; will only get Kenneth

   // this is the messy but necessary way
   // to get a line of text including blanks
   char *buff = new char[80];
   fin.getline(buff,80);
   string name(buff);
   delete [] buff;// do not forget: or memory leak
   cout << "Name from file " << name << endl;
   fin.close();


   fout.open("filero.txt");
   for(int i = 0; i < 10; i++)
	   fout << i << endl;
   fout.close();
   fout.open("filero.txt", ios::app);
   for(int i = 10; i < 20; i++){
	   fout << i << endl;
   }
   fout.close();
   fin.open("filero.txt");
   int fx;
   while(!fin.eof()){
	   fin >> fx;
	   if(!fin.eof())
	      cout << fx << endl;
   }
   fin.close();
   

   // invalid file name
   fin.open("fileor.txt", ios::app);
   if(fin.fail()){
	   cout << " file open failed " << endl;
   }
   else
	   fin.close();
}