"Adam Beneschan" <adam@irvine.com> wrote in message 
news:1288794.275.1334249936588.JavaMail.geo-discussion-forums@ynlp2...
On Thursday, April 12, 2012 3:08:28 AM UTC-7, Markus Sch�pflin wrote:
...
>> So the note from the Ada RM does not seem to be followed by GNAT
>
>I don't think GNAT has a choice whether to follow it or not, since GNAT 
>can't be expected
> to know what the code of the imported C subprogram is going to look like. 
> All it can do is
> obey what the user tells it to do.

Right. If the calling convention is different for normal C subprograms and 
vararg ones, then clearly there needs to be a different convention name for 
varargs. (As I noted, I've never worked on such a machine, but it doesn't 
surprise me that much that they exist.)

Probably the RM ought to suggest such a convention name as Implementation 
Advice (something like C_Varargs) in order to increase portability.

Someone ought to submit a suggestion to Ada-Comment so that it gets on the 
ARG's radar/agenda.

                                 Randy.