Re: INLR no longer required?

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

LR has not been required since the RETRN opcode was added to RPG/400, 
quite a long time ago.

Several people have stated that all you need is a 'return' in your 
program.  That's not quite true, the return needs to be in the MAIN 
procedure of the module, and you will not need LR.  If you don't have a 
return in the main procedure (but do have it in subprocedures) that 
should still trigger a 'can't see how program would end' compiler error. 
 LR, however, can be anywhere in the module (LR is global, so it 
doesn't matter if it's in a subprocedure.)

If you are writing a nomain or linear-main module, you likewise will not 
need either LR or RETURN (except in subprocedures that return values.)

The fact that you say your program is looping indefinitely makes me 
think that this is a cycle-main procedure (i.e. a traditional main 
procedure) and that neither LR nor RETURN is occurring.  This doesn't 
mean, however, that they aren't in the code somewhere... they might be 
in some code that's not being called, maybe because it's conditioned, or 
something like that.

Either way, this should be easy to fix.


On 11/21/2013 3:17 PM, Englander, Douglas wrote:
> We are on V7R1. I just compiled a program that did not reference LR anywhere. It compiled. I ran it, and it does not stop.
>
> Is this a new enhancement that we can compile RPG programs without LR? This program does not use primary files either. I was expecting the "I can't determine how the program ends" error message from the compiler, but instead got a 00 highest severity message.
>
> Doug