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.