osx man page for mpi_type_size

MPI_Type_size(3OpenMPI) 												   MPI_Type_size(3OpenMPI)

NAME
       MPI_Type_size - Returns the number of bytes occupied by entries in a data type.

SYNTAX
C Syntax
       #include <mpi.h>
       int MPI_Type_size(MPI_Datatype datatype, int *size)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_TYPE_SIZE(DATATYPE, SIZE, IERROR)
	    INTEGER   DATATYPE, SIZE, IERROR

C++ Syntax
       #include <mpi.h>
       int Datatype::Get_size() const

INPUT PARAMETER
       datatype  Datatype (handle).

OUTPUT PARAMETERS
       size	 Datatype size (integer).

       IERROR	 Fortran only: Error status (integer).

DESCRIPTION
       MPI_Type_size  returns the total size, in bytes, of the entries in the type signature associated with datatype; i.e., the total size of the
       data in a message that would be created with this datatype. Entries that occur multiple times in the datatype are counted with their multi-
       plicity.

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. By default, this error handler aborts the MPI job, except for
       I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN  may	be
       used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.

Open MPI 1.2							  September 2006					   MPI_Type_size(3OpenMPI)