phil at mobleybros dot com wrote:
> Is there a way for me to simplify the code in each of these overloaded
> operators so that I can have something like this:
>
> Function Operator_Add(x As Integer) As Rational
>
> Return Me + Operator_Convert(x)
>
> End Function
Operator methods are just ordinary methods with a specific name and
signature, so you could certainly call the conversion method directly if you
wanted to:
Function Operator_Add(x As Integer) As Rational
Dim term As New Rational
term.Operator_Convert( x )
Return Me + term
End Function
I think it would be simpler and clearer to let the compiler handle the call,
though; I'd recommend using code like this:
Function Operator_Add(x As Integer) As Rational
Dim term As Rational = x
Return Me + term
End Function
> Also, I am a little confused by the Operator_Negate(). Is it always
> called with subtraction and if yes, should I use addition in the
> Operator_Subtract method? An example would help clarify this for me.
This is subtraction:
x = y - z
This is negation:
x = -y
Operator_Subtract handles subtraction and accepts one parameter, for the
value of the right-hand term (or the left-hand term, in the case of
Operator_SubtractRight); Operator_Negate handles only negation and does not
accept any parameters, since the object itself is the only value involved.
Mars Saxman
REAL Software
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