A stringstream is a stream that works on strings. It helps to perform IO operations on strings stringstream is versatile for parsing text in C++

Commonly used operations on stringstreams are,

• Extract data from stream >>
• Enter data into stream <<
• str() Returns stream content as a string

Look into the below example for a demo,

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

int main () 
{ 
    stringstream ssm;   
    string token;   
    stringstream source("All or nothing"); 
    cout << "source: " << source.str() << endl; 

    if (ssm >> token) 
        cout << "Extracted token: " << token << endl; 

}