Re: Another ILE question : CONST vs VALUE

[Barbara Morris <bmorris@xxxxxxxxxx>]

Ken Sims wrote:
> ...
> Barbara can attest that this really means what it say, and that there
> is not some sneaky passing-by-referencing actually going on under the
> covers.  If you don't believe me or the manual, I hope that you will
> at least believe her.

I thought I posted something about this yesterday, but I don't see it.

Actually, the system does sometimes do some sneaky passing-by-reference 
under the covers when it does pass-by-value, but it isn't the same as 
true pass-by-reference.

Normally, it should be transparent, but due to the way the various 
compilers handle some data types, some parameters passed by value would 
be treated by the system as truly by-value, and some would be treated in 
the sort-of-by-reference way.  If you are mixing languages, be sure to 
specify EXTPROC(*CWIDEN) or *CNOWIDEN or *CL, to ensure that the RPG 
compiler will handle those data types the same way as the other 
language.  (You can code that EXTPROC whether your RPG programs are 
calling a procedure written in the language procedure, or whether your 
RPG procedures are being called by programs in the other language.)