[Info-vax] VMS process communication

[John Reagan]

On Monday, March 13, 2023 at 2:53:57 PM UTC-4, John Dallman wrote:
> In article <tunp6s$3sc9i$1... at dont-email.me>, craig... at nospam.mac.com
> (Craig A. Berry) wrote: 
> 
> > On 3/13/23 8:40 AM, John Dallman wrote: 
> > > Have you got a link for that? 
> > 
> > As far as I know it's only available in the service portal for 
> > people with a support contract. I assume it will become part of the 
> > standard, publicly-available docs once that compiler is out of field 
> > test.
> Makes sense, thanks. It makes porting C/C++ applications to VMS a good 
> deal simpler. 
> 
> John
That /USAGE qualifier is a Pascal qualifier.  It asks the Pascal compiler to violate
the Calling Standard and not sign-extend a 32-bit pointer to duplicate what you can
get (by accident) on Itanium.

It wouldn't be a C or C++ qualifier since neither of those compilers do anything with
descriptors behind your back.