#include <iostream>
#include <memory>
 
 
struct Bar
{
	int m_bar;
	int &ref_bar;
 
	Bar(int bar_, int g) : m_bar(bar_),ref_bar(m_bar)
	{;}
 
	void print()
	{
		std::cout<< "m_bar = "<<m_bar<<std::endl;
	}
};
 
 
struct Foo
{
	std::shared_ptr<Bar> m_foo;
 
	Foo() : m_foo( std::make_shared<Bar>(Bar(23,10)) )		// prints 23 23, Wrong!
	//Foo() : m_foo( new Bar(23,10) )						// prints 23 12, Correct!
	//Foo() : m_foo( std::make_shared<Bar>(23,10) )		// prints 23 12, FIXED!
	{
		m_foo->print();
		m_foo->ref_bar = 12;
		m_foo->print();
	}
};
 
 
int main()
{
	Foo f;
}
 
 
 
 
 
 
 

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