Problem with re-using a stringstream object

Question

I\'m trying to use safe practices in handling input with numbers only in C++, so I use a stringstream object as so:

#include 
#include 

        

Answer 1

cout << "First integer: ";
getline(cin, input);
sstream.str(input);
sstream >> first;     // state of sstream may be eof

cout << "Second integer: ";
getline(cin, input);
sstream.str(input);
sstream.clear();      // clear eof state
sstream >> second;    // input from sstream