root/ompi/datatype/ompi_datatype_create_contiguous.c

DEFINITIONS

1. ompi_datatype_create_contiguous

   1 /* -*- Mode: C; c-basic-offset:4 ; -*- */
   2 /*
   3  * Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
   4  *                         University Research and Technology
   5  *                         Corporation.  All rights reserved.
   6  * Copyright (c) 2004-2019 The University of Tennessee and The University
   7  *                         of Tennessee Research Foundation.  All rights
   8  *                         reserved.
   9  * Copyright (c) 2004-2006 High Performance Computing Center Stuttgart,
  10  *                         University of Stuttgart.  All rights reserved.
  11  * Copyright (c) 2004-2006 The Regents of the University of California.
  12  *                         All rights reserved.
  13  * Copyright (c) 2009      Sun Microsystems, Inc. All rights reserved.
  14  * Copyright (c) 2009      Oak Ridge National Labs.  All rights reserved.
  15  * $COPYRIGHT$
  16  *
  17  * Additional copyrights may follow
  18  *
  19  * $HEADER$
  20  */
  21 
  22 #include "ompi_config.h"
  23 #include "ompi/datatype/ompi_datatype.h"
  24 #include "ompi/datatype/ompi_datatype_internal.h"
  25 #include "mpi.h"
  26 
  27 int32_t ompi_datatype_create_contiguous( int count, const ompi_datatype_t* oldType,
  28                                          ompi_datatype_t** newType )
  29 {
  30     ompi_datatype_t* pdt;
  31 
  32     if( (0 == count) || (0 == oldType->super.size) ) {
  33         return ompi_datatype_duplicate( &ompi_mpi_datatype_null.dt, newType);
  34     }
  35 
  36     pdt = ompi_datatype_create( oldType->super.desc.used + 2 );
  37     opal_datatype_add( &(pdt->super), &(oldType->super), count, 0, (oldType->super.ub - oldType->super.lb) );
  38     *newType = pdt;
  39     return OMPI_SUCCESS;
  40 }