[Mpi-forum] Ticket 125/126 PDF ready for review

Fab Tillier ftillier at microsoft.com
Sat Jan 28 12:05:33 CST 2012

I dunno.  I guess it depends on what you think the prototype for C main is.
int main(int argc, char *argv[]);
int main(int argc, char **argv);

I've mostly seen it as the former, so was trying to stay consistent with that.  After all, argv is an array of char*, and in MPI_Init, it's a pointer to an array of char*...

I can't say I care really strongly about this one, I just think MPI_Init and MPI_Init_thread should be consistent, and the ticket was clarifying what parameters were arrays vs. pointers.


Jeff Squyres wrote on Sat, 28 Jan 2012 at 05:03:29

> I think it looks ok, meaning that I checked your changes.  I did not check to
> see if you missed any.
> That being said, I'm not a fan of the MPI_INIT_THREAD C declaration -- it
> seems to just be more confusing than using ***.  Specifically, it's:
> int MPI_Init_thread(int *argc, char *((*argv)[]), int required, int *provided)
> Personally, I think *** is cleaner/easier to understand:
> int MPI_Init_thread(int *argc, char ***argv, int required, int *provided)
> I would advocate changing MPI_Init_thread to *** rather than changing
> MPI_Init to the complicated [] syntax.
> On Jan 20, 2012, at 2:17 PM, Fab Tillier wrote:
>> Hi Folks,
>> I've implemented the changes to the standard document for tickets 125
> and 126.  The PDF is attached to the ticket, and available here:
> https://svn.mpi-forum.org/trac/mpi-forum-web/raw-
> attachment/ticket/125/ticket-125.pdf
>> A couple notes where I deviated from the tickets: - I didn't
>> distinguish between input and output parameter changes, so all the
>> changes are marked as ticket125 - I did not add 'const' for the input
>> parameters, as that was already done by ticket 140 - I only updated the
>> C bindings - I did not update MPI_Type_hindexed and MPI_Type_struct in
>> the deprecated chapter. - I updated MPI_Init to match the parameter
>> definition of MPI_Init_thread.
>> I'd appreciate if folks could take a look and comment, letting me know
>> if I botched anything, or missed anything that should be changed.
>> Thanks,
>> -Fab
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