CODE:

#include
#include


class Functa{
	private:
		std::string str;
	public:
		Functa(const std::string& s):str(s){}
		void operator()(){
			std::cout
class UsingFuncByPtr{
	private:
		//Func* f_ptr;//error point?
		typename Func* f_ptr;
	public:
		UsingFuncByPtr( Func f):f_ptr( &(f) ){
			std::cout
class UsingFunc{
	private:
		Func& func;//何とか参照かポインタにしたい。
		
	public:
		UsingFunc( Func f):func(f){
			std::cout call_functa(functa);
	FunctaRefWrapper functa_wrap(functa);
	//call_functa();////die
	cout call_functa2(functa);
	UsingFunc call_functa2ref(functa);

	//cout<<"by UsingFunc :";call_functa2();/////Die
	cout<<"by UsingFunc(ref):";call_functa2ref();
	cout<<"sizeof(call_functa2):"<<sizeof(call_functa2)<<endl;
	cout<<"sizeof(call_functa2ref):"<<sizeof(call_functa2ref)<<endl;

}