Re: Why program in MI?

On Mon, Jul 21, 2014 at 10:12 AM, CRPence wrote:

"For example one could probably create and utilize a space or utilize
independent index support more efficiently than the respective User Space
or User Index support provided via API."

To go beyond your "could probably", I have used Bound Independent Index MI
instructions from RPGLE for just that purpose.


On Mon, Jul 21, 2014 at 10:12 AM, CRPence <[email protected]> wrote:

> On 21-Jul-2014 09:28 -0500, John R. Smith, Jr. wrote:
>
>> Based on the comment "there are problems for which MI is a better fit
>> than RPG", can you give me some specifics?
>>
>
>   One example: Creating a somewhat efficient OPM program [with almost no
> automatic or static storage] to execute one or a few particular MI
> instruction(s); created instead as an OPM RPG, then there would be a
> significant amount of unnecessary code that was generated as part of the
> RPG compiler to perform under the RPG run-time environment.  I have a
> couple times, found that availability helpful when I want to extend the
> capability of a CLP or an SQL request; e.g. the CVTCH instruction, with the
> capability to convert a string of even-numbered human-readable hexadecimal
> digits into the equivalent character string of half that length, something
> which neither the CL nor SQL provide an equivalent capability.
>
>   Other examples typically involve implementing some activity, that
> although already provided by some APIs, the API interfaces are at least
> somewhat inefficient for the desired purpose.  For example one could
> probably create and utilize a space or utilize independent index support
> more efficiently than the respective User Space or User Index support
> provided via API.
>
> --
> Regards, Chuck
>
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-- 
Regards,
Bruce
www.brucevining.com
www.powercl.com
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