#include <iostream>

#include <string>



void stiekem(const std::string& a) {

	const_cast<std::string&>(a)="Hallo";

}



int main() {

	std::string s("Dag");

	std::cout<<"s = "<<s<<std::endl;

	stiekem(s);

	std::cout<<"s = "<<s<<std::endl;

	std::cin.get();

	return 0;

}



/*

Output:



s = Dag

s = Hallo



*/