Re: Returning values with a procedure

Should have done this in my first reply, but this is more of an RPG400-L question, so I'll crosspost and put future replies there.

For very performance sensitive applications, it may be worth noting that a large return value (a data structure with many fields, for example) may be troublesome in that the whole structure must be copied on each call. I'm never quite sure what the best answer is here, as return values seem so much more natural than "output" parameters, but I don't think the performance difference can be ignored.


Booth Martin wrote:

Returning values with a procedure.

This is probably simple but I have never done it and can't find an example of how to do it. I have an application that looks to me like it should use procedures that will return values. 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". I am sure this solution would be wrong! :)

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

and this would also be wrong:

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

Any pointers would be appreciated. Thanks.