Re: MAIN or cycleless programs.

I write 100% of my programs now using MAIN unless I have a CL driver and it
becomes NOMAIN.

I am not clear on what you mean by a main procedure. You do a have a main
procedure. If you are saying you miss writing monolith programs, can't agree
with you there. I hate monolith programs. What a nightmare to maintain.

I have been writing all my new code with nothing but a single function that
received the parameters and called a main function so that when we got V6R1
all I had to do is remove that procedure and add the Main keyword and I have
a cycle-less program.

I have done some timing test and it give me a maybe 10% performance boost.
Programs are smaller. Why have the cycle when we don't ever use it. Should
have had this years ok.

My biggest surprise with Main programs is that is did little to reduce the
size of the static storage. I include the following in every program but
still using a lot of static storage in RPG programs.

h Option(*Srcstmt:*Nodebugio:*NoShowCpy:*NoUnref)

Just wrote a program that has no static variables (expect SQL data
structures which IBM is not smart enough to put local) but still takes 4,848
bytes of static storage. Never have figured out why IBM needs all that
static storage for every RPG program.


On Fri, Nov 5, 2010 at 9:21 AM, Loyd Goodbar <loyd@xxxxxxxxxxxxxx> wrote:

MAIN or NOMAIN? Usually, NOMAIN is used for modules, specially those for
service programs, when cycle process is not needed.

--Loyd

On Fri, Nov 5, 2010 at 8:39 AM, David FOXWELL <David.FOXWELL@xxxxxxxxx

wrote:

Hi,

I've just done my first program using the MAIN keyword. I have to admit
that I didn't see any benefit from doing so. I particularly missed having

a

main procedure with all the global definitions in it. Especially the

program

parameters.

Any thoughts would be welcome.

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