some.cpp

#include <shogun/base/some.h>
#include <iostream>

class base {
	public:
		base() : val(1) {};
		virtual void print() {std::cout << val << std::endl;}
		int ref() {};
		int unref() {};
	private:
		int val;
};

class der : public base {
	public:
		void print() {std::cout << "DER" << std::endl;} 
};

void method(base *a) { a->print();}
void method2(shogun::Some<base> a) {a->print();}

int main() {
	
	shogun::Some<base> tmp {new base()};
	shogun::Some<der> tmp2 {new der()};
	
	method(tmp); // <--Why these two do not fail?
	method(tmp2);// <--^

	method2(tmp);
	//method2(tmp2); <- Fail as expected


	return 0;
}