C++ Using stringstream after << as parameter

Question

Is it possible to write a method that takes a stringstream and have it look something like this,

void method(string st         


        

Answer 1

Make your wrapper over std::stringstream. In this new class you can define whatever operator << you need:

class SSB {
public:
   operator std::stringstream& () { return ss; }

   template 
   SSB& operator << (const T& v) { ss << v; return *this; }
   template 
   SSB& operator << (const T* v) { ss << v; return *this; }
   SSB& operator << (std::ostream& (*v)(std::ostream&)) { ss << v; return *this; }
   // Be aware - I am not sure I cover all <<'s       
private:
   std::stringstream ss;
};

void print(std::stringstream& ss)
{
    std::cout << ss.str() << std::endl;
}

int main() {
  SSB ssb;
  print (ssb << "Hello" << " world in " << 2012 << std::endl);
  print (SSB() << "Hello" << " world in " << 2012 << std::endl);
}