#include <iostream>
using namespace std;
 
class Test
{
	public:
	Test(bool condition) : condition(condition)
	{
		if(condition)
		{
			std::cout << "if(condition) special init needs" << std::endl;
		}
	}
 
	~Test()
	{
		if(condition)
		{
			std::cout << "if(condition) special cleanup needs" << std::endl;
		}
	}
 
	operator bool() { return condition; }
 
	private:
	bool condition = false;
};
 
#define DoIf(cond) if(Test DoIf_test = Test(cond))
 
int main()
{
	std::cout << "Start of main" << std::endl;
 
	DoIf(true)
	{
		std::cout << "Inside condition A" << std::endl;	
	}
 
	DoIf(false)
	{
		std::cout << "Inside condition B" << std::endl;	
	}
 
	std::cout << "End of main" << std::endl;	
 
	return 0;
}

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