public static decimal Round(decimal userNumber)
	{
		return Math.Round(userNumber);
	}

	public static decimal Round(decimal userNumber, int decimals)
	{
		return Math.Round(userNumber, decimals);
	}

	[Test]
	public void Stackoverflow_Issue()
	{
		var interpreter = new Interpreter();

		Func<decimal, decimal> roundFunction1 = (userNumber) => Round(userNumber);
		Func<decimal, int, decimal> roundFunction2 = (userNumber, decimals) => Round(userNumber, decimals);

		interpreter.SetFunction("ROUND", roundFunction1);
		interpreter.SetFunction("ROUND", roundFunction2);

		var x = 666.66M;
		interpreter.SetVariable("x", x);

		Assert.AreEqual(Round(x, 3), interpreter.Eval("ROUND(x, 3)"));
		Assert.AreEqual(Round(x, 1), interpreter.Eval("ROUND(x, 1)"));
	}