19.7 완벽한 전달과 std::forward

#include <iostream>
#include <utility>

using namespace std;

struct MyStruct
{};

void func(MyStruct & s)
{
	cout << "Pass by L-ref" << endl;
}

void func(MyStruct && s)
{
	cout << "Pass by R-Lef" << endl;
}

template<typename T>
void func_wrapper(T&& t)
{
	func(std::forward<T>(t));
}

int main()
{
	MyStruct s;
	
	// func(s);
	// func(MyStruct());
	func_wrapper(s);
	func_wrapper(MyStruct());
}

// Pass by L-ref
// Pass by R-Lef