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MPI_Type_extent(3)		      MPI		    MPI_Type_extent(3)

NAME
       MPI_Type_extent -  Returns the extent of a datatype

SYNOPSIS
       int MPI_Type_extent(MPI_Datatype datatype, MPI_Aint *extent)

INPUT PARAMETERS
       datatype
	      - datatype (handle)

OUTPUT PARAMETER
       extent - datatype extent (address integer)

THREAD AND INTERRUPT SAFETY
       This  routine is both thread- and interrupt-safe.  This means that this
       routine may safely be used by multiple threads and from within a signal
       handler.

DEPRECATED FUNCTION
       The  MPI-2  standard deprecated a number of routines because MPI-2 pro‐
       vides better versions.  This routine is one of those  that  was	depre‐
       cated.	The  routine  may continue to be used, but new code should use
       the  replacement	 routine.   The	 replacement  for  this	  routine   is
       MPI_Type_get_extent .

NOTES FOR FORTRAN
       All  MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have
       an additional argument ierr at the end of the argument list.   ierr  is
       an  integer and has the same meaning as the return value of the routine
       in C.  In Fortran, MPI routines are subroutines, and are	 invoked  with
       the call statement.

       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in
       Fortran.

ERRORS
       All MPI routines (except MPI_Wtime and  MPI_Wtick  )  return  an	 error
       value;  C routines as the value of the function and Fortran routines in
       the last argument.  Before the value is returned, the current MPI error
       handler	is called.  By default, this error handler aborts the MPI job.
       The error handler may be changed with MPI_Comm_set_errhandler (for com‐
       municators),	 MPI_File_set_errhandler      (for     files),	   and
       MPI_Win_set_errhandler  (for   RMA   windows).	 The   MPI-1   routine
       MPI_Errhandler_set  may	be used but its use is deprecated.  The prede‐
       fined error handler MPI_ERRORS_RETURN may be used to cause error values
       to  be  returned.  Note that MPI does not guarentee that an MPI program
       can continue past an error; however, MPI implementations	 will  attempt
       to continue whenever possible.

       MPI_SUCCESS
	      - No error; MPI routine completed successfully.
       MPI_ERR_TYPE
	      - Invalid datatype argument.  May be an uncommitted MPI_Datatype
	      (see MPI_Type_commit ).

LOCATION
       src/mpi/datatype/type_extent.c

				   9/20/2012		    MPI_Type_extent(3)

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