RE: RPG/400 pgm strange behavior

["Richard Jackson" <richardjackson@xxxxxxxxxxxxxxxxxx>]

That's the point.  The call is dynamic.  The call-ee info isn't known at
compile time.

The caller creates a placard describing his goods - called a descriptor.
The callee is not known in advance or is not part of my project so I don't
have a guaranteed prototype or interface spec or perhaps the call-ee is
under development and while good today, the interface specs may not be good
tomorrow.  The call-ee can examine my placard and decide if my goods are in
the correct format.  If so, we can talk.  If not, I get sent away.

Richard Jackson
mailto:richardjackson@richardjackson.net
www.richardjacksonltd.com
Voice: 1 (303) 808-8058
Fax:   1 (303) 663-4325

-----Original Message-----
From: owner-rpg400-l@midrange.com [mailto:owner-rpg400-l@midrange.com]On
Behalf Of M. Lazarus
Sent: Tuesday, July 18, 2000 6:24 PM
To: RPG400-L@midrange.com
Subject: RE: RPG/400 pgm strange behavior


Richard,

At 7/17/00 12:29 PM -0600, you wrote:
>I refer to an object descriptor whose content can be queried at execution
>time.  It is used to verify the properties of parameters passed between
>modules when a dynamic call is used.  It requires CPU cycles to use.
>
>This concept is similar to the static checking performed by the link-editor
>or module binder but performed dynamically at each call, not statically at
>compile time.

  Since the info is known @ compile time (except maybe VARLEN fields), why
can't the compiler determine this @ compile time?

  -mark
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