Re: Returning values with a procedure

[Adam Glauser <adamglauser@xxxxxxxxxxxx>]

Booth Martin wrote:
> Here is an example of 
> what I'd like to do:
>
>   c                eval    Duty = CanadianDuty(parm1: parm2: parm3)
>
> and the procedure CanadianDuty would have 3 parameters as input and 
> return the value of the duty.
>
> I believe I can do that process, but I *know* I have no idea how to do 
> the same thing where I need  to return 2 values, say "Duty" and 
> "Tariff".

One way to do it is to return a data structure, so your code would look 
like:

   c                eval    CustomsFees = CanadianDuty(parm1: parm2: parm3)
   ...
   c                eval    totalCost = ... + CustomsFees.duty + 
CustomsFees.tariff ...


You can also use "output" parameters, as you might if you were coding a 
program instead of a procedure to retrieve the information:

   c                callp   CanadianDuty(parm1: parm2: parm3: duty : 
tariff)


Yet another way would be have one procedure for each type of fee, which 
would be closer to your first example:

   c                eval    Duty = CanadianDuty(parm1: parm2: parm3)
   c                eval    Tariff = CanadianTariff(parm1: parm2: parm3)