Re: Naming /copy prototype members.

[rob@xxxxxxxxx]

Thank you Barb!  I wasn't getting exactly how the conditional compilation
worked.  Your example was very clear and should be included in the manual.

Rob Berendt

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                    owner-rpg400-l@mi        Subject:     Re: Naming /copy 
prototype members.                          
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                    03/27/01 04:49 PM                                           
                                       
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Date: Mon, 26 Mar 2001 11:15:46 -0500
From: rob@dekko.com
> ...
>Now, to make this easier for other developers do I move
>D XYZ123          PR
>D  PhoneNbr                     15A
>D  Faxing#                      30A
>to another member, perhaps named XYZ123P, and end up with
>/copy mylib/qrpglesrc,xyz123p
> * Replaces *ENTRY PLIST
>D XYZ123          PI
>D  Phone                        15A
>D  Fax#                         30A
>
>Or is it better to leave the PR in XYZ123 and use conditional compilation
>to just pull in the prototype?  If so, how?
>
>I try to put the comment * Replaces *ENTRY PLIST, in there for the people
>who scan for this.

Rob, what you have is good, except as Anton says, use the EXTPGM keyword
if you want your callers to call this as a program.

I think it's a good idea to put the *ENTRY-PLIST comment right by the PI.
I try to do that too, leave a comment if I know someone (maybe me) will
be scanning for something that I've replaced.

I don't know if it's worth it, but you can keep the prototype in the same
source file and allow other modules to just copy the prototype using
directives several ways.  Here's one.

 /if not defined(prototypesOnly)
H ...
F ...
 /endif
 * Beginning of shared source also used for /COPY by other modules

D XYZ123         PR           EXTPGM('XYZ123')
D   parms ...
 * End of "/copy" part

 /if defined(prototypesOnly)
 /eof
 /endif

D XYZ123         PI
D   parms ...

 /define prototypesOnly
 /copy other prototype files
 /undefine prototypesOnly
...the rest of your module

Don't forget to code CONST for your parameters when it makes sense.

Barbara Morris


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