#include <iostream>
#include <fstream> 
#include <string>
// stream string
#include <strstream>//ostrstream
using namespace std;
//myofstream_constructs3.cpp
//Output File Stream Constructors 
void readfile10(char[] ); 
 string str1; 
int main()
{
   cout<<"\n create string stream with ";
   cout<<" data in a file ";
   char ch1[]= "data10.txt"; 
   ofstream myFile10;// on the Stack  
   myFile10.open(ch1);
   // insertion operators <<
   myFile10<<" Adding text to data10 file."; 
   myFile10.close(); 
   readfile10(ch1);
   return 0; 
}
// ifstream is an input stream 
void readfile10(char ch3[])
{
	cout<<"\n reading file "<<endl;
	ifstream infile(ch3);
	char ch, *sp; 
	ostrstream ostr1; 
	//seting pointer at begining
	infile.seekg(0);
	cout<<"\n ch-> "; 
	while(infile.good())
	{
		infile.get(ch);
		//if(!ch){ break;}
		if(ch=='.'){ break;}
		cout<<ch; 
		str1 +=ch;
		
	} 
	cout<<" \n feed string stream with str1\n ->" << str1<<endl;
	ostr1<< str1<<ends;
	sp = ostr1.str(); 
	cout<<"\n sp "<<sp; 
}