Question

How to empty stringstream and reset the stringstream to a default constructed state in C++

Answer 1

#include <iostream>  
#include <sstream>  

int main() {  
    int n = 840192;  
    
    std::stringstream ss;  
    ss << n;  

    std::cout << ss.str() << "\n";
    
    std::stringstream().swap(ss);
    
    ss << "c++";
    
    std::cout << ss.str();
      
    return 0;
}  




/*
run:

840192
c++

*/

 

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