#include <iostream>
#include <exception>
 
class Test {
public:
	Test() : a(7), b(new char('c'))
	{
	}
 
	Test(Test& other) : a(other.a)
	{
		try {
			if (other.b == nullptr)
				throw std::exception();
 
			b = new char(*other.b);
		}
		catch (std::exception &e) {
			b = new char('d');
		}
	}
 
public:
	int a;
	char* b;
};
 
int main()
{
	Test a;
	Test b(a);
 
	std::cout << b.b << std::endl;
	delete a.b;
	a.b = nullptr;
 
	Test c(a);
	std::cout << c.b << std::endl;
 
	return 0;
}

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