/*
 * $HEADER$
 */

#include "ompi_config.h"

#include "mpi.h"
#include "mpi/c/bindings.h"
#include "communicator/communicator.h"
#include "errhandler/errhandler.h"
#include "file/file.h"

#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_File_f2c = PMPI_File_f2c
#endif

#if OMPI_PROFILING_DEFINES
#include "mpi/c/profile/defines.h"
#endif

static const char FUNC_NAME[] = "MPI_File_f2c";


MPI_File MPI_File_f2c(MPI_Fint file_f) 
{
    size_t file_index = (size_t) file_f;

    if (MPI_PARAM_CHECK) {
        OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
    }

    /* Per MPI-2:4.12.4, do not invoke an error handler if we get an
       invalid fortran handle */

    if (file_index < 0 ||
        file_index >= 
        ompi_pointer_array_get_size(&ompi_file_f_to_c_table)) {
        return MPI_FILE_NULL;
    }

    return ompi_pointer_array_get_item(&ompi_file_f_to_c_table, file_index);
}