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This video tutorial explains how to use string streams in c++.
You are gonna learn what are string streams, how to use them in detail with example.

source code for this tutorial

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

int main()
{

string number = "44";

stringstream sso;
sso << number;
int input;
sso >> input;
cout << input+2<<endl;
cout << number+"2"<<endl;
return 0;
}