version(Tango)
	import tango.io.Stdout;
else
	import std.stdio;

int n;

class C
{
	C[] children;
	char[1024] data;

	this(int level)
	{
		n++;
		for(int i=0;i<level;i++)
			children ~= new C(level-1);
		data[1023] = 5;  // "use up"
	}

	~this()
	{
		n--;
		//Stdout("C[")(children.length)("].dtor").newline;
	}
}

const progressInterval = 1000;

void main()
{
	version(Tango)
		Stdout("This is the Tango version").newline;
	else
		writefln("This is the Phobos version");

	for(int i=0;i<100000;i++)
	{
		if (i % progressInterval == 0)
		{
			version(Tango)
				Stdout(i, n)("\r").flush;
			else
			{
				writef(i, ", ", n, "\r");
				fflush(stdout);
			}
		}
		new C(5);
	}
}