NAME

       MPI_File_get_view - Returns the process's view of data in the file.

SYNTAX

C Syntax

       #include   <mpi.h>   int  MPI_File_get_view(MPI_File  fh,  MPI_Offset  *disp,       MPI_Datatype  *etype,
       MPI_Datatype *filetype,      char *datarep)

Fortran Syntax (see FORTRAN 77 NOTES)

       USE MPI
       ! or the older form: INCLUDE 'mpif.h'
       MPI_FILE_GET_VIEW(FH, DISP, ETYPE,
            FILETYPE, DATAREP, IERROR)
            INTEGER   FH, ETYPE, FILETYPE, IERROR
            CHARACTER*(*)  DATAREP
            INTEGER(KIND=MPI_OFFSET_KIND) DISP

C++ Syntax

       #include <mpi.h>
       void MPI::File::Get_view(MPI::Offset& disp,
            MPI::Datatype& etype,
            MPI::Datatype& filetype, char* datarep) const

INPUT PARAMETER

       fh        File handle (handle).

OUTPUT PARAMETERS

       disp      Displacement (integer).

       etype     Elementary data type (handle).

       filetype  File type (handle). See Restrictions, below.

       datarep   Data representation (string).

       IERROR    Fortran only: Error status (integer).

DESCRIPTION

       The MPI_File_get_view routine returns the process's view of the data in the file. The current  values  of
       the displacement, etype, and filetype are returned in disp, etype, and filetype, respectively.

       The  MPI_File_get_view  interface  allows  the  user to pass a data-representation string via the datarep
       argument.

FORTRAN 77 NOTES

       The MPI standard prescribes portable Fortran syntax for the DISP argument only for Fortran  90.   FORTRAN
       77 users may use the non-portable syntax.

            INTEGER*MPI_OFFSET_KIND DISP

       where  MPI_OFFSET_KIND  is  a  constant defined in mpif.h and gives the length of the declared integer in
       bytes.

ERRORS

       Almost all MPI routines return an error value; C routines as  the  value  of  the  function  and  Fortran
       routines in the last argument. C++ functions do not return errors. If the default error handler is set to
       MPI::ERRORS_THROW_EXCEPTIONS, then on error the  C++  exception  mechanism  will  be  used  to  throw  an
       MPI::Exception object.

       Before the error value is returned, the current MPI error handler is called. For MPI I/O function errors,
       the default  error  handler  is  set  to  MPI_ERRORS_RETURN.  The  error  handler  may  be  changed  with
       MPI_File_set_errhandler; the predefined error handler MPI_ERRORS_ARE_FATAL may be used to make I/O errors
       fatal. Note that MPI does not guarantee that an MPI program can continue past an error.