#include <iostream>
#include <string>
 
struct S {
	std::string name_ = "defaulted";
	S()
	{
		std::cout << "ctor\n";
	}
	S(const char* name) : name_(name) {
		std::cout << "char* ctor \n";
	}
	S(const S& copy)
	{
		std::cout << "copy ctor\n";
		name_ = copy.name_;
	}
	S(S&& rhs) { 
		std::cout << "move ctor " << name_ << "\n";
		name_ = rhs.name_;
		rhs.name_ = "new";
		name_ += " moved"; }
};
 
void fn(S s)
{
	std::cout << "fn(" << s.name_ << ")\n";
}
 
template<typename T>
void fwd_test(T&& t)
{
	fn(std::forward<T>(t));
	fn(std::forward<T>(t));
}
 
int main() {
	fwd_test(S("source"));
}

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