équivalent scanf en c++

#include <conio.h>

#include <iostream>
#include <fstream>
#include <string>

#include <sstream>

int main( int argc, char *argv[])
{
	std::string		dummy;
	long double		ldValue1;
	long double		ldValue2;
	std::stringstream	ss;

	std::ifstream		file( "test.txt" );

	if ( file.is_open() )
	{
		ss << file.rdbuf();	// <- /!\ ici ça bourrine /!\

		while ( ss >> dummy >> ldValue1 >> dummy >> ldValue2 >> dummy )
			std::cout	<< "Value1 = " << ldValue1 << "\t"
				 	<< "Value2 = " << ldValue2 << std::endl;

		file.close();
	}

	getch();

	return 0;
}