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/*
* Copyright (c) 2001-2002 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 1998-2001 University of Notre Dame.
* All rights reserved.
* Copyright (c) 1994-1998 The Ohio State University.
* All rights reserved.
*
* This file is part of the LAM/MPI software package. For license
* information, see the LICENSE file in the top level directory of the
* LAM/MPI source distribution.
*
* $HEADER$
*
* $Id: tstruct.c,v 6.7 2002/12/11 19:15:14 jsquyres Exp $
*
* Function: - create struct derived datatype
* Accepts: - # blocks
* - block length array
* - block displacement array (in bytes)
* - block element datatype array
* - new datatype (out)
* Returns: - MPI_SUCCESS or error code
*/
#include <blktype.h>
#include <mpi.h>
#include <mpisys.h>
/*@
MPI_Type_struct - Creates a struct datatype
Input Parameters:
+ count - number of blocks (integer) -- also number of
entries in arrays array_of_types ,
array_of_displacements and array_of_blocklengths
. blocklens - number of elements in each block (array)
. indices - byte displacement of each block (array)
- old_types - type of elements in each block (array
of handles to datatype objects)
Output Parameter:
. newtype - new datatype (handle)
.N Wrapper MPI_Type_create_struct
.N ACK
@*/
int MPI_Type_struct(int count, int *lengths,
MPI_Aint *disps, MPI_Datatype *oldtypes,
MPI_Datatype *newtype)
{
int err;
lam_initerr_m();
lam_setfunc_m(BLKMPITSTRUCT);
err = MPI_Type_create_struct(count, lengths, disps, oldtypes, newtype);
if (err != MPI_SUCCESS) {
return(lam_errfunc(MPI_COMM_WORLD, BLKMPITSTRUCT, err));
}
(*newtype)->dt_format = LAM_DTSTRUCT;
lam_resetfunc_m(BLKMPITSTRUCT);
return(MPI_SUCCESS);
}
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