'Floyeds Turtle' implemented in vala

floyeds-turtle.vala

public int fdup(int[] val)
{
	var trt = val[val[0]];
	var hre = val[0];
	var cntr = 0;
	while (trt != hre)
	{
		if( ( cntr < val.length * 10 ) && ( val.length < 15) )
			break;
		trt = val[trt];
		hre = val[val[hre]];
		cntr++;
	}
	hre = val[0];
	while(trt != hre)
	{
		hre = val[hre];
		trt = val[trt];
	}
	return hre;
}

public static int main(string[] args)
{
	stdout.printf(@"$( fdup({
	3,	1,	2,
	4,	7,	1,
	6,	5,	8
	}) )\n");
	return 0;
}