Compile defaults (was Re: CPF5035 Null?)

Rob's always had a good point about the H-spec options. The H-specs should be 
required reading for everyone involved in coding and compiling RPG modules. 
(H-specs are applied to 'modules'. Therefore, a 'program' might have different 
characteristics at different moments.)

Some additional considerations from the manual:

"The control-specification statements, identified by an H in position 6, 
provide information about generating and running programs. However, there are 
three different ways in which this information can be provided to the compiler 
and the compiler searches for this information in the following order:

1.  A control specification included in your source

2.  A data area named RPGLEHSPEC in *LIBL

3.  A data area named DFTLEHSPEC in QRPGLE

Once one of these sources is found, the values are assigned and keywords that 
are not specified are assigned their default values."

Note that each of these override CRT* command options, this provides levels of 
granularity of control.

You can provide options for all compiles from everyone by creating the 
QRPGLE/DFTLEHSPEC *dtaara and entering keyword/value pairs. You can provide 
options for all compiles of yours by creating the *libl/RPGLEHSPEC *dtaara. And 
you can force a specific module to compile in a specific way with H-specs.

Just keep in mind that the module might not compile as you expect when you 
enter the CRT* command: if an H-spec says otherwise, your CRT* parameter values 
will be ignored.

Tom Liotta


rpg400-l-request@midrange.com wrote:

>   4. Re: CPF5035  Null? (rob_dekko)
>
>The default on CRTBNDRPG is
>Allow null values  . . . . . . . ALWNULL        *NO
>
<snip>
>
>To avoid this problem in the future you may want to add an appropriate H
>spec.  This will save the lady who comes after you from making the same
>mistake.

--
--
Tom Liotta
The PowerTech Group, Inc.
19426 68th Avenue South
Kent, WA 98032
Phone  253-872-7788 x313
Fax    253-872-7904
http://www.powertechgroup.com


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