sudo code.

#include <strstream>
#include <sstream>
#include <iostream>
#include <iomanip>

using namespace std;





class SpyOutput(){

	public

	spy(*spy){
		std::stringstream *spy;



	}

	int getcuont(){

	return 0;
	}

	int getchecksum(){

	return 0;
	}
}

void main()
{
   double d1 = 12.3;
   int i1 = 45;
   SpyOutput spy(&cout);
   spy << "abc" << endl;
   spy << "d1=" << d1 << " i1=" << i1 << 'z' << endl;

   cout << "count=" << spy.getCount() << endl;
   cout << "Check Sum=" << spy.getCheckSum() << endl;
}