public void Input(string s)
{
if (s.Equals("C"))
{
Clear();
}
else if (s.Equals("="))
{
CompleteCalculation();
currentValue = null;
}
else
{
if (Operator.StringIsOperator(s))
{
currentValue = null;
PushOperator(new Operator(s));
}
else
{
ApplyToCurrentValue(s);
}
}
NotifyDisplayChanged();
}
public void Input(string s)
{
if (s.Equals("C"))
{
Clear();
}
else if (s.Equals("="))
{
CompleteCalculation();
currentValue = null;
}
else
{
if (Operator.StringIsOperator(s))
{
currentValue = null;
PushOperator(new Operator(s));
}
else
{
ApplyToCurrentValue(s);
}
}
var latestValue = (valueStack.Count == 0) ? "0" : valueStack.Peek().ToString();
Display = latestValue;
}