Steve mentions:
> Thanks. Actually, the real problem (thanks, Bruce) is that IPCSHUTDOWN
> will return the error 7 code if you default the 'opt' parameter. Passing
> an explicit 0 in this position eliminates the error. I'd take a WAG that
> there's a problem either with the SYSINTR file or the way the C/iX
> compiler handles this situation, since the actual intrinsic call should
> end up with a 0 in the 'opt' parameter if it's defaulted.
 
Here's what is in the SYSINTR file for IPCSHUTDOWN:
 
cseq ipcshutdown
 
CSEQ [2.0] - LPS Toolbox [A.01a]            (c) 1995 Lund Performance Solutions
 
For Help at the CSEQ prompt enter   ?
 
 
Procedure IPCSHUTDOWN (
   descriptor   :        int32   ;        {R26}
   flags        : anyvar set     ;        {R25, @32 -> 32} := nil, align 16}
   opt          : anyvar record  ;        {R24, @32 -> 262096} := nil
                                          {align 16}
   result       : var    int32   )        {R23} := nil, align 16}
   {flags must be 0 or NSF_GRACEFUL_RELEASE                       }
   {op: 0 or a pointer to empty NetIPC option buffer              }
      uncheckable_anyvar
End Run
/
 
So,  SYSINTR says "default opt to NIL" ... which absolves SYSINTR.
 
 
 
--
Stan Sieler                                          [log in to unmask]
                                     http://www.allegro.com/sieler.html