RE: RPG IV program - comments requested

[Joel Fritz <JFritz@xxxxxxxxxxxxxxxx>]

You can call it from the command line.  The difference between this and a C
source is that RPG wants a declaration and definition for main() as well as
any other "functions." Note that the RPG main can take any list of
parameters you care to define while the C main can accept only the argument
count and the argument list.

Const allows you to pass a parameter by reference without being able to
change its value.  C++ has a similar feature.

> -----Original Message-----
> From: Jim Langston [mailto:jlangston@conexfreight.com]
> Sent: Friday, September 24, 1999 1:10 PM
> To: RPG400-L@midrange.com
> Subject: Re: RPG IV program - comments requested
> 
> 
> Okay, if I declare a Prototype and Procedure interface, can I 
> still call my
> RPG program from the command line?  Or would it always have 
> to be called
> from another program?
> 
> Prototyping I somewhat understand from C and Pascal, when I 
> would prototype
> a subroutine or a function so the compiler wouldn't have to 
> make 2 passes.  But
> what is the Procedure Interface for?  Is that just an 
> indicator of my Parm List?
> And
> if so, is the Prototype required?
> 
> And I see you can declare an input variable as a Constant 
> (CONST) which seems
> somewhat foreign to my concept of a constant, but if that's 
> the way RPG does it,
> I can deal with it.
> 
> Thanks so much, Barbara and others that responded, this is 
> exactly the type of
> feedback I was looking for.
> 
> Regards,
> 
> Jim Langston
> 
> 
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