Re: ILE C++ standards

I would think invoking the executable would be easy.  Is it parameter passing that's the obstacle?

I had issues once with that and ended up loading the parms into environment variables and the called program just did a GetEnv() to retrieve.


Roger Harman
COMMON Certified Application Developer - ILE RPG on IBM i on Power




-----Original Message-----
From: C400-L [mailto:[email protected]] On Behalf Of Charles Wilt
Sent: Monday, July 13, 2020 7:26 AM
To: Bare Metal Programming IBM i (AS/400 and iSeries)
Subject: Re: [C400-L] ILE C++ standards

ILE C++ is easy to call..thus why we are trying to port it.

C++ in PASE is what is difficult...

Charles

On Fri, Jul 10, 2020 at 5:25 PM Roger Harman <[email protected]>
wrote:

> That's an interesting statement.  If it's an ILE program (or module), why
> would it be difficult to call?
>
> I've only done a couple of C (not C++) programs on IBM i so I can't claim
> any expertise - just curiosity.
>
> Roger Harman
> COMMON Certified Application Developer - ILE RPG on IBM i on Power
>
> --
>
>
>
> -----Original Message-----
> From: C400-L [mailto:[email protected]] On Behalf Of
> Charles Wilt
> Sent: Friday, July 10, 2020 9:47 AM
> To: Bare Metal Programming IBM i (AS/400 and iSeries)
> Subject: Re: [C400-L] ILE C++ standards
>
> That's an option..
>
> Except I want to call the C++ code from RPG...
>
> And while it appears that can be done, it doesn't appear
> particularly simple.
>
> Charles
>
> On Fri, Jul 10, 2020 at 10:25 AM Mark Waterbury <
> [email protected]> wrote:
>
> > Hi, Charles,
> >
> > If you really need the latest and greatest C++ standards, you should be
> > looking into installing the GCC G++ compiler under PASE.  :-)
> >
> > All the best,
> >
> >  Mark S. Waterbury
> >
> > > On Friday, July 10, 2020, 12:22:07 PM EDT, Charles Wilt <
> > [email protected]> wrote:
> >
> >
> >
> >
> >
> > "You're surprised by this?"
> >
> > A little yeah, I expected it to be behind...but 9+ years? :o
> >
> > No, we don't do much C++, none in fact.  But I'd really like to have URI
> > Templating functionality https://en.wikipedia.org/wiki/URL_Template in
> RPG
> > and since there were some existing C++, I thought it'd be worthwhile to
> see
> > if we could port one over.
> >
> > Charles
> >
> >
> > On Fri, Jul 10, 2020 at 7:35 AM Kelly Beard <[email protected]>
> > wrote:
> >
> > > You're surprised by this?  :-)  Not to sound rude or condescending, but
> > > you, like most everyone else in the universe, probably don't do a lot
> of
> > > C++ work on the 400.  Unfortunately, we do.  We're on V7R3 here.  IBM
> is
> > > not even on C++11, technically, but on C++0x, and you have to, for
> > > some reason, enable a command option to get that going.  Only God in
> > Heaven
> > > knows why they cannot stay current.  I suspect that maybe the OS is
> > written
> > > with whatever C++ was in force at the time and so that is what we're
> > stuck
> > > with, but that's only my uneducated guess.
> > >
> > > How many lines is this utility?  Probably originally written on a Linux
> > > system with g++?
> > >
> > > On Thu, Jul 9, 2020 at 5:06 PM Charles Wilt <[email protected]>
> > > wrote:
> > >
> > > > So we're trying to port a small C++ utility to ILE...
> > > >
> > > > One of the compile errors is on the following...
> > > > for(auto& ele : inVars)
> > > >
> > > > Apparently this the "for each" loop which was added to C++ in
> > 2011...(aka
> > > > C++11)
> > > >
> > > > We're on v7.2, but even the v7.4 manual doesn't show it as valid.
> > > >
> > > > Looks like C++ on the IBM i include part of the C+11 standards, but
> not
> > > yet
> > > > all.  And of course C++14 and C++17 are nowhere to be found.
> > > >
> > > > Bit surprised the i is so far behind the times, but I suppose most
> > don't
> > > > use ILE C/C++...
> > > >
> > > > Charles
>
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