Re: including C routines in Ada (newbie ask for assistance)

["Marin David Condic" <marin.condic.auntie.spam@pacemicro.com>]

Oh, I'll agree that in most cases things are going to line up nicely on a
given platform. I'm just observing that there is nothing *mandatory* about
this. It *might* work just fine. Then again, it might not. There's no way to
be sure unless you specify the compilers & system involved. For a given
platform, you might be able to conceive of a dozen possible ways of calling
a C function and passing it parameters. Which of those dozen ways actually
works will depend on the code generated by the C compiler. AFAIK, there's no
government certification board or IEEE committee or any other agency that
tests all compilers to see that they use some prescribed subprogram calling
convention and spanks the implementations that disobey. :-)

MDC
--
Marin David Condic
Senior Software Engineer
Pace Micro Technology Americas    www.pacemicro.com
Enabling the digital revolution
e-Mail:    marin.condic@pacemicro.com
Web:      http://www.mcondic.com/


"David Starner" <dvdeug@x8b4e53cd.dhcp.okstate.edu> wrote in message
news:9d6mkr$71u1@news.cis.okstate.edu...
>
> GCC works very hard to support the system ABI. On most systems, the C
> ABI is standardized and very well supported. Note that there's nothing
> mandatory about how an Ada compiler must present its interface, and
> except in rare cases (DEC Ada & GNAT) two Ada compilers won't share an
> interface.
>