osx man page for mpi_file_get_size

MPI_File_get_size(3OpenMPI)											       MPI_File_get_size(3OpenMPI)

NAME
       MPI_File_get_size - Returns the current size of the file.

SYNTAX
       C Syntax
	   #include <mpi.h>
	   int MPI_File_get_size(MPI_File fh, MPI_Offset *size)

       Fortran Syntax (see FORTRAN 77 NOTES)
	   INCLUDE 'mpif.h'
	   MPI_FILE_GET_SIZE(FH, SIZE,	IERROR)
	    INTEGER FH, ERROR
	    INTEGER(KIND=MPI_OFFSET_KIND) SIZE

C++ Syntax
       #include <mpi.h>
       MPI::Offset MPI::File::Get_size() const

INPUT PARAMETERS
       fh	 File handle (handle).

       size	 Size of the file in bytes (integer).

OUTPUT PARAMETER
       IERROR	 Fortran only: Error status (integer).

DESCRIPTION
       MPI_File_get_size  returns,  in	size  ,  the current size in bytes of the file associated with the file handle fh. Note that the file size
       returned by Solaris may not represent the number of bytes physically allocated for the file in those cases where all  bytes  in	this  file
       have not been written at least once.

FORTRAN 77 NOTES
       The  MPI standard prescribes portable Fortran syntax for the SIZE argument only for Fortran 90. Sun FORTRAN 77 users may use the non-porta-
       ble syntax

	    INTEGER*MPI_OFFSET_KIND SIZE

       where MPI_ADDRESS_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++ func-
       tions  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.

SEE ALSO
       MPI_File_preallocate

Open MPI 1.2							  September 2006				       MPI_File_get_size(3OpenMPI)