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  • Subject: Re: How about in INC opcode
  • From: boldt@xxxxxxxxxx
  • Date: Wed, 8 Mar 2000 08:36:31 -0500



L.S. wrote:
>I despise ++ because I tend to over look it. I would much prefer an INC
>opcode for the very point you made, it is not ambiguous.
>I agree with you that a += operator would be handy as all get out, but
>while your at it let have a %split bif and some of the good stuff from
>perl.
>I would love it if RPG would lean perlward in the future.

Well, you know I'm a big Perl fan.  And my colleague
Barbara has even started playing with it too!

However, Perl and RPG are fundamentally different
languages.  One is compiled and the other is
interpreted.  Interpreted languages aren't hobbled
by the same restraints that compiled languages
suffer from.  Interpreted languages typically can
offer much more rich functionality, but compiled
languages typically can offer much better run-time
performance.  So you have yet another case of
trading off factors:  Do you want fast run-time
performance?  Or do you want fast development time?

Actually, in practice, there really isn't much of a
run-time performance penalty when using a function-
rich language like Perl.  Since Much of the run-time
of a Perl program happens in the run-time library
anyways, typical Perl programs run about the same as
comparable C++ programs!

Regarding a %SPLIT built-in in RPG, wouldn't that be
great?  Unfortunately, the implementation wouldn't
be easy.  In Perl it's easy since it can handle
arrays dynamically anyways (everythings handled
dynamically!).  But RPG would have to allocate space
to handle the worst case scenarios, which gets
expensive fast!  Perhaps we could just clone the
Perl run-time environment, but then you might just
as well write your program in Perl.

The bottom line is this:  Use the appropriate tool
for the task.  For business apps, keep using RPG.
For tasks that requires heavy string manipulation,
Perl is better.

(Is this getting too far off topic?)

Cheers!  Hans

Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com


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