Is TS 29113 changing something in this case? I.e., does TS 29113 allow LOGICAL dummy arguments in BIND(C) subroutines? Rolf ----- Original Message -----

From: "Jeff Squyres (jsquyres)" <[email protected]> To: "<[email protected]>" <[email protected]>, "MPI-3 Fortran working group" <[email protected]> Sent: Tuesday, February 26, 2013 7:04:09 PM Subject: Re: [MPI3 Fortran] [Mpi-comments] MPI 3.0: Fortran 2008 interface - issue with the LOGICAL kind On Feb 26, 2013, at 11:27 AM, Bill Long <[email protected]> wrote:

...

In particular, the C function is not using _Bool. It would seem to be more consistent for the Fortran interface to specify the argument as

INTEGER :: FLAG

or, better

INTEGER(c_int) :: FLAG.

FWIW, the MPI Fortran interfaces have always used LOGICAL for boolean values, not INTEGER. It would be weird to change them now.

-- Jeff Squyres [email protected] For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

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-- Dr. Rolf Rabenseifner . . . . . . . . . .. email [email protected] High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530 University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832 Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner Nobelstr. 19, D-70550 Stuttgart, Germany . . . . (Office: Room 1.307)