C / C++ / MFC

#include <stdio.h>
#include <atlbase.h>

int ctorCalls = 0;
int dtorCalls = 0;

class Elem
{
public:
	Elem() { value = 0; ctorCalls ++; Diag("def ctor");	}
	
	Elem(const Elem& other) 
	{ 
		value = other.value;
		ctorCalls ++; 
		Diag("copy ctor");
	}

	~Elem()	{ dtorCalls ++; Diag("dtor"); }

	void SetValue(int newValue)	{ value = newValue;	}

private:
	void Diag(const char *fxn)
	{
		printf("%s, this=%x, value=%d\n", fxn, this, value);
	}

	int value;
};

void test()
{
	CSimpleArray<Elem> array;
	
	Elem e;

	e.SetValue(11);
	array.Add(e);
	e.SetValue(22);
	array.Add(e);
	e.SetValue(33);
	array.Add(e);

	e.SetValue(44);
	array.SetAtIndex(1, e);
}

void main()
{
	test();
	printf("ctor calls: %d\ndtor calls: %d\n", ctorCalls, dtorCalls);
}