path: root/fortran/src/H5Sf.c

/****h* H5Sf/H5Sf
 * PURPOSE
 *  This file contains C stubs for H5S Fortran APIs
 *
 * COPYRIGHT
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 ******
 */

#include "H5f90.h"
#include "H5Eprivate.h"

/****if* H5Sf/h5screate_simple_c
 * NAME
 *  h5screate_simple_c
 * PURPOSE
 *  Call H5Screate_simple to create a dataspace
 * INPUTS
 *  rank     - number of dimensions of dataspace
 *  dims     - array of the size of each dimension
 *  maxdims  - an array of the maximum size of each dimension
 * OUTPUTS
 *  space_id - identifier of the created dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5screate_simple_c(int_f *rank, hsize_t_f *dims, hsize_t_f *maxdims, hid_t_f *space_id)
/******/
{
    hsize_t c_dims[H5S_MAX_RANK];
    hsize_t c_maxdims[H5S_MAX_RANK];
    hid_t   c_space_id;
    int     i;
    int_f   ret_value = 0;

    /*
     * Transpose dimension arrays because of C-FORTRAN storage order
     */
    for (i = 0; i < *rank; i++) {
        c_dims[i]    = dims[*rank - i - 1];
        c_maxdims[i] = maxdims[*rank - i - 1];
    } /* end for */

    c_space_id = H5Screate_simple(*rank, c_dims, c_maxdims);
    if (c_space_id < 0)
        HGOTO_DONE(FAIL)

    *space_id = (hid_t_f)c_space_id;

done:
    return ret_value;
}

/****if* H5Sf/h5sclose_c
 * NAME
 *  h5sclose_c
 * PURPOSE
 *  Call H5Sclose to close the dataspace
 * INPUTS
 *  space_id - identifier of the dataspace to be closed
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sclose_c(hid_t_f *space_id)
/******/
{
    int   ret_value = 0;
    hid_t c_space_id;

    c_space_id = (hid_t)*space_id;
    if (H5Sclose(c_space_id) < 0)
        ret_value = -1;
    return ret_value;
}

/****if* H5Sf/h5screate_c
 * NAME
 *  h5screate_c
 * PURPOSE
 *  Call H5Screate to create a dataspace
 * INPUTS
 *  classtype - type of the dataspace class
 * OUTPUTS
 *  space_id  - identifier of the created dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5screate_c(int_f *classtype, hid_t_f *space_id)
/******/
{
    H5S_class_t c_classtype;
    int         ret_value = 0;
    hid_t       c_space_id;
    c_classtype = (H5S_class_t)*classtype;
    c_space_id  = H5Screate(c_classtype);

    if (c_space_id < 0)
        ret_value = -1;
    *space_id = (hid_t_f)c_space_id;
    return ret_value;
}

/****if* H5Sf/h5scopy_c
 * NAME
 *  h5scopy_c
 * PURPOSE
 *  Call H5Scopy to copy dataspace
 * INPUTS
 *  space_id     - identifier of the dataspace to be copied
 * OUTPUTS
 *  new_space_id - identifier of the new datspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5scopy_c(hid_t_f *space_id, hid_t_f *new_space_id)
/******/
{
    int   ret_value = 0;
    hid_t c_new_space_id;
    hid_t c_space_id;

    c_space_id     = (hid_t)*space_id;
    c_new_space_id = H5Scopy(c_space_id);
    if (c_new_space_id < 0)
        ret_value = -1;

    *new_space_id = (hid_t_f)c_new_space_id;
    return ret_value;
}

/****if* H5Sf/h5sget_select_hyper_nblocks_c
 * NAME
 *  h5sget_select_hyper_nblocks_c
 * PURPOSE
 *  Call H5SH5Sget_select_hyper_nblocks to
 *  get the number of hyperslab blocks in
 *  the current dataspace selection if successful
 * INPUTS
 *  space_id   - identifier of the dataspace
 * OUTPUTS
 *  num_blocks -  number of hyperslab blocks in
 *                the current dataspace selection
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_select_hyper_nblocks_c(hid_t_f *space_id, hssize_t_f *num_blocks)
/******/
{
    int      ret_value = 0;
    hid_t    c_space_id;
    hssize_t c_num_blocks;

    c_space_id   = (hid_t)*space_id;
    c_num_blocks = H5Sget_select_hyper_nblocks(c_space_id);
    if (c_num_blocks < 0)
        ret_value = -1;

    *num_blocks = (hssize_t_f)c_num_blocks;
    return ret_value;
}

/****if* H5Sf/h5sget_select_elem_npoints_c
 * NAME
 *  h5sget_select_elem_npoints_c
 * PURPOSE
 *  Call H5Sget_select_elem_npoints to
 *  get the number of element points in
 *  the current dataspace selection if successful
 * INPUTS
 *  space_id   - identifier of the dataspace
 * OUTPUTS
 *  num_points -  number of element points in
 *                the current dataspace selection
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_select_elem_npoints_c(hid_t_f *space_id, hssize_t_f *num_points)
/******/
{
    int      ret_value = 0;
    hid_t    c_space_id;
    hssize_t c_num_points;

    c_space_id   = (hid_t)*space_id;
    c_num_points = H5Sget_select_elem_npoints(c_space_id);
    if (c_num_points < 0)
        ret_value = -1;

    *num_points = (hssize_t_f)c_num_points;
    return ret_value;
}

/****if* H5Sf/h5sget_select_hyper_blocklist_c
 * NAME
 *  h5sget_select_hyper_blocklist_c
 * PURPOSE
 *  Call H5Sget_select_hyper_blocklist to
 *  get a list of the hyperslab blocks currently selected
 *  Starting with the startblock-th block in the
 *  list of blocks, num_blocks blocks are put into the user's
 *  buffer. If the user's buffer fills up before numblocks
 *  blocks are inserted, the buffer
 *  will contain only as many blocks as fit.
 * INPUTS
 *  space_id   - identifier of the dataspace
 *  startblock - Hyperslab block to start with
 *  num_blocks -  number of hyperslab blocks in
 *                the current dataspace selection
 * OUTPUTS
 *  buf - List of hyperslab blocks selected
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_select_hyper_blocklist_c(hid_t_f *space_id, hsize_t_f *startblock, hsize_t_f *num_blocks,
                                hsize_t_f *buf)
/******/
{
    int     ret_value = -1;
    hid_t   c_space_id;
    hsize_t c_num_blocks;

    hsize_t i;
    int     j, k, m, n;
    int     rank;
    hsize_t c_startblock, *c_buf;

    c_space_id   = (hid_t)*space_id;
    c_num_blocks = (hsize_t)*num_blocks;

    rank = H5Sget_simple_extent_ndims(c_space_id);
    if (rank < 0)
        return ret_value;
    c_startblock = (hsize_t)*startblock;

    c_buf = (hsize_t *)malloc(sizeof(hsize_t) * (size_t)(c_num_blocks * 2 * (hsize_t)rank));
    if (!c_buf)
        return ret_value;

    ret_value = H5Sget_select_hyper_blocklist(c_space_id, c_startblock, c_num_blocks, c_buf);

    /*
     * Transpose dimension arrays because of C-FORTRAN storage order and add 1
     */
    n = 0;
    m = 0;
    for (i = 0; i < c_num_blocks; i++) {
        for (j = 0; j < rank; j++) {
            for (k = 0; k < rank; k++) {
                int t  = (m + rank - k - 1);
                buf[n] = (hsize_t_f)c_buf[t] + 1;
                n      = n + 1;
            }
            m = m + rank;
        }
    }

    free(c_buf);
    if (ret_value >= 0)
        ret_value = 0;
    return ret_value;
}

/****if* H5Sf/h5sget_select_bounds_c
 * NAME
 *  h5sget_select_bounds_c
 * PURPOSE
 *  Call H5Sget_select_bounds to retrieve the coordinates
 *  of the bounding box containing the current selection
 *  and places them into user-supplied buffers
 * INPUTS
 *  space_id - identifier of the dataspace
 * OUTPUTS
 *  start -  Starting coordinates of the bounding box
 *  end   -  Ending coordinates of the bounding box,
 *           i.e., the coordinates of the diagonally opposite corne
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_select_bounds_c(hid_t_f *space_id, hsize_t_f *start, hsize_t_f *end)
/******/
{
    hid_t   c_space_id;
    hsize_t c_start[H5S_MAX_RANK];
    hsize_t c_end[H5S_MAX_RANK];
    int     i, rank;
    int_f   ret_value = 0;

    c_space_id = (hid_t)*space_id;
    rank       = H5Sget_simple_extent_ndims(c_space_id);
    if (rank < 0)
        HGOTO_DONE(FAIL)

    if (H5Sget_select_bounds(c_space_id, c_start, c_end) < 0)
        HGOTO_DONE(FAIL)

    for (i = 0; i < rank; i++) {
        start[i] = (hsize_t_f)(c_start[rank - i - 1] + 1);
        end[i]   = (hsize_t_f)(c_end[rank - i - 1] + 1);
    } /* end for */

done:
    return ret_value;
}

/****if* H5Sf/h5sget_select_elem_pointlist_c
 * NAME
 *  h5sget_select_elem_pointlist_c
 * PURPOSE
 *  Call  H5Sget_select_elem_pointlist
 *  get a list of  element points in the
 *  current dataspace selection.
 *  Starting with the startpoint-th point in the
 *  list of points, numpoints points are put into the user's
 *  buffer. If the user's buffer fills up before numpoints
 *  points are inserted, the buffer
 *  will contain only as many points as fit.
 * INPUTS
 *  space_id   - identifier of the dataspace
 *  startpoint - Element point to start with
 *  numpoints  -  Number of element points to get
 * OUTPUTS
 *  buf - List of element points selected
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_select_elem_pointlist_c(hid_t_f *space_id, hsize_t_f *startpoint, hsize_t_f *numpoints, hsize_t_f *buf)
/******/
{
    int     ret_value = -1;
    hid_t   c_space_id;
    hsize_t c_num_points;
    hsize_t c_startpoint, *c_buf;
    hsize_t i, i1;
    int     rank;
    int     j, i2;

    c_space_id   = (hid_t)*space_id;
    c_num_points = (hsize_t)*numpoints;

    rank = H5Sget_simple_extent_ndims(c_space_id);
    if (rank < 0)
        return ret_value;

    c_startpoint = (hsize_t)*startpoint;
    c_buf        = (hsize_t *)malloc(sizeof(hsize_t) * (size_t)(c_num_points * (hsize_t)rank));
    if (!c_buf)
        return ret_value;
    ret_value = H5Sget_select_elem_pointlist(c_space_id, c_startpoint, c_num_points, c_buf);

    /* re-arrange the return buffer to account for Fortran ordering of 2D arrays */
    /* and add 1 to account for array's starting at one in Fortran */
    i2 = 0;
    for (i = 0; i < c_num_points; i++) {
        i1 = (hsize_t)rank * (i + 1);
        for (j = 0; j < rank; j++) {
            buf[i2] = (hsize_t_f)(c_buf[i1 - 1] + 1);
            i2      = i2 + 1;
            i1      = i1 - 1;
        }
    }

    if (ret_value >= 0)
        ret_value = 0;

    free(c_buf);

    return ret_value;
}

/****if* H5Sf/h5sselect_all_c
 * NAME
 *  h5sselect_all_c
 * PURPOSE
 *  Call H5Sselect_all to select entire dataspace
 * INPUTS
 *  space_id - identifier of the dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sselect_all_c(hid_t_f *space_id)
/******/
{
    int   ret_value = 0;
    hid_t c_space_id;

    c_space_id = (hid_t)*space_id;
    if (H5Sselect_all(c_space_id) < 0)
        ret_value = -1;
    return ret_value;
}

/****if* H5Sf/h5sselect_none_c
 * NAME
 *  h5sselect_none_c
 * PURPOSE
 *  Call H5Sselect_none to reset the selection region
 * INPUTS
 *  space_id - identifier of the dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sselect_none_c(hid_t_f *space_id)
/******/
{
    int   ret_value = 0;
    hid_t c_space_id;

    c_space_id = (hid_t)*space_id;
    if (H5Sselect_none(c_space_id) < 0)
        ret_value = -1;
    return ret_value;
}

/****if* H5Sf/h5sselect_valid_c
 * NAME
 *  h5sselect_valid_c
 * PURPOSE
 *  Call H5Sselect_valid to verify that selection
 *  is within dataspace extent.
 * INPUTS
 *  space_id - identifier of the dataspace
 * OUTPUTS
 *  flag     - 0 if not valid selection, 1 if is valid selection,
 *             and negative on failure.
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sselect_valid_c(hid_t_f *space_id, int_f *flag)
/******/
{
    int    ret_value = 0;
    hid_t  c_space_id;
    htri_t status;

    c_space_id = (hid_t)*space_id;
    status     = H5Sselect_valid(c_space_id);
    *flag      = (int_f)status;
    if (status < 0)
        ret_value = -1;
    return ret_value;
}

/****if* H5Sf/h5sget_simple_extent_npoints_c
 * NAME
 *  h5sget_simple_extent_npoints_c
 * PURPOSE
 *  Call H5Sget_simple_extent_npoints to determine the number
 *  of elements in a dataspace
 * INPUTS
 *  space_id - identifier of the dataspace
 * OUTPUTS
 *  npoints  - number of points in a dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_simple_extent_npoints_c(hid_t_f *space_id, hsize_t_f *npoints)
/******/
{
    int      ret_value = 0;
    hid_t    c_space_id;
    hssize_t c_npoints;

    c_space_id = (hid_t)*space_id;
    c_npoints  = H5Sget_simple_extent_npoints(c_space_id);
    if (c_npoints == 0)
        ret_value = -1;
    *npoints = (hsize_t_f)c_npoints;
    return ret_value;
}

/****if* H5Sf/h5sget_select_npoints_c
 * NAME
 *  h5sget_select_npoints_c
 * PURPOSE
 *  Call H5Sget_select_npoints to determine the number
 *  of elements in a dataspace selection
 * INPUTS
 *  space_id - identifier of the dataspace
 * OUTPUTS
 *  npoints  - number of points in a dataspace selection
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_select_npoints_c(hid_t_f *space_id, hssize_t_f *npoints)
/******/
{
    int      ret_value = 0;
    hssize_t c_npoints;
    hid_t    c_space_id;

    c_space_id = (hid_t)*space_id;
    c_npoints  = H5Sget_select_npoints(c_space_id);
    if (c_npoints < 0)
        ret_value = -1;
    *npoints = (hssize_t_f)c_npoints;
    return ret_value;
}

/****if* H5Sf/h5sget_simple_extent_ndims_c
 * NAME
 *  h5sget_simple_extent_ndims_c
 * PURPOSE
 *  Call H5Sget_simple_extent_ndims to determine the number
 *  dimensions
 * INPUTS
 *  space_id - identifier of the dataspace
 * OUTPUTS
 *  rank - number of dataspace dimensions
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_simple_extent_ndims_c(hid_t_f *space_id, int_f *ndims)
/******/
{
    int   ret_value = 0;
    hid_t c_space_id;
    int   c_ndims;

    c_space_id = (hid_t)*space_id;
    c_ndims    = H5Sget_simple_extent_ndims(c_space_id);
    if (c_ndims < 0)
        ret_value = -1;
    *ndims = (int_f)c_ndims;
    return ret_value;
}

/****if* H5Sf/h5sget_simple_extent_type_c
 * NAME
 *  h5sget_simple_extent_type_c
 * PURPOSE
 *  Call H5Sget_simple_extent_type to determine the class type
 *  of a dataspace
 * INPUTS
 *  space_id  - identifier of the dataspace
 * OUTPUTS
 *  classtype - class type; possible values are:
 *              H5S_SCALAR_F (0), H5S_SIMPLE_F (1), H5S_NULL_F (2)
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_simple_extent_type_c(hid_t_f *space_id, int_f *classtype)
/******/
{
    int         ret_value = 0;
    hid_t       c_space_id;
    H5S_class_t c_classtype;

    c_space_id  = (hid_t)*space_id;
    c_classtype = H5Sget_simple_extent_type(c_space_id);
    if (c_classtype < 0)
        ret_value = -1;
    *classtype = c_classtype;
    /*
      if (c_classtype == H5S_SCALAR) *classtype = H5S_SCALAR_F;
      if (c_classtype == H5S_SIMPLE) *classtype = H5S_SIMPLE_F;
      if (c_classtype == H5S_NULL)   *classtype = H5S_NULL_F;
    */
    return ret_value;
}

/****if* H5Sf/h5soffset_simple_c
 * NAME
 *  h5soffset_simple_c
 * PURPOSE
 *  Call H5Soffset_simple to set the offset of a simple
 *  dataspace
 * INPUTS
 *  space_id - identifier of the dataspace
 *  offset   - offset array
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5soffset_simple_c(hid_t_f *space_id, hssize_t_f *offset)
/******/
{
    hid_t    c_space_id;
    int      rank;
    hssize_t c_offset[H5S_MAX_RANK];
    int      i;
    int_f    ret_value = 0;

    c_space_id = (hid_t)*space_id;
    rank       = H5Sget_simple_extent_ndims(c_space_id);
    if (rank < 0)
        HGOTO_DONE(FAIL)

    /*
     * Reverse dimensions due to C-FORTRAN storage order.
     */
    for (i = 0; i < rank; i++)
        c_offset[i] = offset[rank - i - 1];

    if (H5Soffset_simple(c_space_id, c_offset) < 0)
        HGOTO_DONE(FAIL)

done:
    return ret_value;
}

/****if* H5Sf/h5sset_extent_simple_c
 * NAME
 *  h5sset_extent_simple_c
 * PURPOSE
 *  Call H5Sset_extent_simple to set or reset size of
 *  existing  dataspace
 * INPUTS
 *  space_id     - identifier of the dataspace
 *  rank         - dataspace rank
 *  current_size - array with the new dimension sizes
 *  maximum_size - array with maximum sizes of dimensions
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sset_extent_simple_c(hid_t_f *space_id, int_f *rank, hsize_t_f *current_size, hsize_t_f *maximum_size)
/******/
{
    hsize_t c_current_size[H5S_MAX_RANK];
    hsize_t c_maximum_size[H5S_MAX_RANK];
    int     i;
    int_f   ret_value = 0;

    /*
     * Reverse dimensions due to C-FORTRAN storage order.
     */
    for (i = 0; i < *rank; i++) {
        c_current_size[i] = (hsize_t)current_size[*rank - i - 1];
        c_maximum_size[i] = (hsize_t)maximum_size[*rank - i - 1];
    } /* end for */

    if (H5Sset_extent_simple((hid_t)*space_id, (int)*rank, c_current_size, c_maximum_size) < 0)
        HGOTO_DONE(FAIL)

done:
    return ret_value;
}

/****if* H5Sf/h5sget_simple_extent_dims_c
 * NAME
 *  h5sget_simple_extent_dims_c
 * PURPOSE
 *  Call H5Sget_simple_extent_dims to retrieve sizes of an
 *  existing  dataspace
 * INPUTS
 *  space_id - identifier of the dataspace
 * OUTPUTS
 *  dims    - array with the dimension sizes
 *  maxdims - array with maximum sizes of dimensions
 * RETURNS
 *  number of dataspace dimensions (rank) on success, -1 on failure
 * SOURCE
 */

int_f
h5sget_simple_extent_dims_c(hid_t_f *space_id, hsize_t_f *dims, hsize_t_f *maxdims)
/******/
{
    hid_t   c_space_id;
    hsize_t c_dims[H5S_MAX_RANK];
    hsize_t c_maxdims[H5S_MAX_RANK];
    int     rank;
    int     i;
    int_f   ret_value;

    c_space_id = (hid_t)*space_id;
    rank       = H5Sget_simple_extent_ndims(c_space_id);
    if (rank < 0)
        HGOTO_DONE(FAIL)

    if (H5Sget_simple_extent_dims(c_space_id, c_dims, c_maxdims) < 0)
        HGOTO_DONE(FAIL)

    /*
     * Reverse dimensions due to C-FORTRAN storage order.
     */
    for (i = 0; i < rank; i++) {
        dims[rank - i - 1]    = (hsize_t_f)c_dims[i];
        maxdims[rank - i - 1] = (hsize_t_f)c_maxdims[i];
    } /* end for */

    ret_value = rank;

done:
    return ret_value;
}

/****if* H5Sf/h5sis_simple_c
 * NAME
 *  h5sis_simple_c
 * PURPOSE
 *  Call H5Sis_simple to determine if the dataspace
 *  is simple.
 * INPUTS
 *  space_id - identifier of the dataspace
 * OUTPUTS
 *  flag     - 0 if not simple, 1 if is simple,
 *             and negative on failure.
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sis_simple_c(hid_t_f *space_id, int_f *flag)
/******/
{
    int    ret_value = 0;
    hid_t  c_space_id;
    htri_t status;

    c_space_id = (hid_t)*space_id;
    status     = H5Sis_simple(c_space_id);
    *flag      = (int_f)status;
    if (status < 0)
        ret_value = -1;
    return ret_value;
}

/****if* H5Sf/h5sextent_copy_c
 * NAME
 *  h5sextent_copy_c
 * PURPOSE
 *  Call H5Sextent_copy to copy an extent of dataspace
 * INPUTS
 *  dest_space_id   - identifier of the destination dataspace
 *  source_space_id - identifier of the source dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sextent_copy_c(hid_t_f *dest_space_id, hid_t_f *source_space_id)
/******/
{
    int    ret_value = 0;
    hid_t  c_dest_space_id, c_source_space_id;
    herr_t status;

    c_dest_space_id   = (hid_t)*dest_space_id;
    c_source_space_id = (hid_t)*source_space_id;
    status            = H5Sextent_copy(c_dest_space_id, c_source_space_id);
    if (status < 0)
        ret_value = -1;
    return ret_value;
}

/****if* H5Sf/h5sset_extent_none_c
 * NAME
 *  h5sset_extent_none_c
 * PURPOSE
 *  Call H5Sset_extent_none to remove extent from a dataspace
 * INPUTS
 *  space_id - dataspace identifier
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sset_extent_none_c(hid_t_f *space_id)
/******/
{
    int    ret_value = 0;
    hid_t  c_space_id;
    herr_t status;

    c_space_id = (hid_t)*space_id;
    status     = H5Sset_extent_none(c_space_id);
    if (status < 0)
        ret_value = -1;
    return ret_value;
}

/****if* H5Sf/h5sselect_hyperslab_c
 * NAME
 *  h5sselect_hyperslab_c
 * PURPOSE
 *  Call H5Sselect_hyperslab to select a hyperslab
 * INPUTS
 *  space_id - identifier of the dataspace
 *  operator - defines how the new selection is combined
 *             with the previous one; current values are
 *             H5S_SELECT_SET_F (0) and H5S_SELECT_OR_F (1)
 *  start    - offset of start of hyperslab
 *  count    - number of blocks included in the hyperslab
 *  stride   - hyperslab stride (interval between blocks)
 *  block    - size of block in the hyperslab
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sselect_hyperslab_c(hid_t_f *space_id, int_f *op, hsize_t_f *start, hsize_t_f *count, hsize_t_f *stride,
                      hsize_t_f *block)
/******/
{
    hsize_t c_start[H5S_MAX_RANK];
    hsize_t c_count[H5S_MAX_RANK];
    hsize_t c_stride[H5S_MAX_RANK];
    hsize_t c_block[H5S_MAX_RANK];
    int     rank;
    int     i;
    int_f   ret_value = 0;

    rank = H5Sget_simple_extent_ndims((hid_t)*space_id);
    if (rank < 0)
        HGOTO_DONE(FAIL)

    /*
     * Reverse dimensions due to C-FORTRAN storage order.
     */
    for (i = 0; i < rank; i++) {
        int t = (rank - i) - 1;

        c_start[i]  = (hsize_t)start[t];
        c_count[i]  = (hsize_t)count[t];
        c_stride[i] = (hsize_t)stride[t];
        c_block[i]  = (hsize_t)block[t];
    } /* end for */

    if (H5Sselect_hyperslab((hid_t)*space_id, (H5S_seloper_t)*op, c_start, c_stride, c_count, c_block) < 0)
        HGOTO_DONE(FAIL)

done:
    return ret_value;
}

/****if* H5Sf/h5scombine_hyperslab_c
 * NAME
 *  h5scombine_hyperslab_c
 * PURPOSE
 *  Call H5Scombine_hyperslab
 * INPUTS
 *  space_id - identifier of the dataspace
 *  operator - defines how the new selection is combined
 *  start    - offset of start of hyperslab
 *  count    - number of blocks included in the hyperslab
 *  stride   - hyperslab stride (interval between blocks)
 *  block    - size of block in the hyperslab
 * OUTPUTS
 *  hyper_id - identifier for the new dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5scombine_hyperslab_c(hid_t_f *space_id, int_f *op, hsize_t_f *start, hsize_t_f *count, hsize_t_f *stride,
                       hsize_t_f *block, hid_t_f *hyper_id)
/******/
{
    int      ret_value = -1;
    hid_t    c_space_id;
    hid_t    c_hyper_id;
    hsize_t *c_start  = NULL;
    hsize_t *c_count  = NULL;
    hsize_t *c_stride = NULL;
    hsize_t *c_block  = NULL;

    H5S_seloper_t c_op;
    int           rank;
    int           i;

    rank = H5Sget_simple_extent_ndims(*space_id);
    if (rank < 0)
        return ret_value;
    c_start = (hsize_t *)malloc(sizeof(hsize_t) * (unsigned)rank);
    if (c_start == NULL)
        goto DONE;

    c_count = (hsize_t *)malloc(sizeof(hsize_t) * (unsigned)rank);
    if (c_count == NULL)
        goto DONE;

    c_stride = (hsize_t *)malloc(sizeof(hsize_t) * (unsigned)rank);
    if (c_stride == NULL)
        goto DONE;

    c_block = (hsize_t *)malloc(sizeof(hsize_t) * (unsigned)rank);
    if (c_block == NULL)
        goto DONE;

    /*
     * Reverse dimensions due to C-FORTRAN storage order.
     */

    for (i = 0; i < rank; i++) {
        int t       = (rank - i) - 1;
        c_start[i]  = (hsize_t)start[t];
        c_count[i]  = (hsize_t)count[t];
        c_stride[i] = (hsize_t)stride[t];
        c_block[i]  = (hsize_t)block[t];
    }

    c_op = (H5S_seloper_t)*op;

    c_space_id = (hid_t)*space_id;
    c_hyper_id = H5Scombine_hyperslab(c_space_id, c_op, c_start, c_stride, c_count, c_block);
    if (c_hyper_id < 0)
        goto DONE;
    *hyper_id = (hid_t_f)c_hyper_id;
    ret_value = 0;
DONE:
    if (c_start != NULL)
        free(c_start);
    if (c_count != NULL)
        free(c_count);
    if (c_stride != NULL)
        free(c_stride);
    if (c_block != NULL)
        free(c_block);
    return ret_value;
}
/****if* H5Sf/h5scombine_select_c
 * NAME
 *  h5scombine_select_c
 * PURPOSE
 *  Call H5Scombine_ select
 * INPUTS
 *  space1_id - identifier of the first dataspace
 *  operator  - defines how the new selection is combined
 *  space2_id - identifier of the second dataspace
 * OUTPUTS
 *  ds_id     - identifier for the new dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5scombine_select_c(hid_t_f *space1_id, int_f *op, hid_t_f *space2_id, hid_t_f *ds_id)
/******/
{
    int           ret_value = -1;
    hid_t         c_space1_id;
    hid_t         c_space2_id;
    hid_t         c_ds_id;
    H5S_seloper_t c_op;

    c_op = (H5S_seloper_t)*op;

    c_space1_id = (hid_t)*space1_id;
    c_space2_id = (hid_t)*space2_id;
    c_ds_id     = H5Scombine_select(c_space1_id, c_op, c_space2_id);
    if (c_ds_id < 0)
        return ret_value;
    *ds_id    = (hid_t_f)c_ds_id;
    ret_value = 0;
    return ret_value;
}
/****if* H5Sf/h5smodify_select_c
 * NAME
 *  h5smodify_select_c
 * PURPOSE
 *  Call H5Smodify_select
 * INPUTS
 *  space1_id - identifier of the first dataspace  to modify
 *  operator - defines how the new selection is combined
 *  space2_id - identifier of the second dataspace
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5smodify_select_c(hid_t_f *space1_id, int_f *op, hid_t_f *space2_id)
/******/
{
    int           ret_value = -1;
    hid_t         c_space1_id;
    hid_t         c_space2_id;
    H5S_seloper_t c_op;

    c_op = (H5S_seloper_t)*op;

    c_space1_id = (hid_t)*space1_id;
    c_space2_id = (hid_t)*space2_id;
    if (H5Smodify_select(c_space1_id, c_op, c_space2_id) < 0)
        return ret_value;
    ret_value = 0;
    return ret_value;
}

/****if* H5Sf/h5sget_select_type_c
 * NAME
 *  h5sget_select_type_c
 * PURPOSE
 *  Call H5Sget_select_type
 * INPUTS
 *  space_id - identifier of the dataspace
 * OUTPUTS
 *  type - type of selection
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */
int_f
h5sget_select_type_c(hid_t_f *space_id, int_f *type)
/******/
{
    int          ret_value = -1;
    hid_t        c_space_id;
    H5S_sel_type c_type;

    c_space_id = (hid_t)*space_id;
    c_type     = H5Sget_select_type(c_space_id);
    if (c_type < 0)
        return ret_value;
    *type     = (int_f)c_type;
    ret_value = 0;
    return ret_value;
}

/****if* H5Sf/h5sselect_elements_c
 * NAME
 *  h5sselect_elements_c
 * PURPOSE
 *  Call H5Sselect_elements to select elements of a dataspace
 * INPUTS
 *  space_id  - identifier of the dataspace
 *  operator  - defines how the new selection is combined
 *             with the previous one; current values are
 *                 H5S_SELECT_SET_F (0)
 *  nelements - number of elements in the selection
 *  coord     - arrays with the elements coordinates
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sselect_elements_c(hid_t_f *space_id, int_f *op, size_t_f *nelements, hsize_t_f *coord)
/******/
{
    int           ret_value = -1;
    hid_t         c_space_id;
    H5S_seloper_t c_op;
    herr_t        status;
    int           rank;
    size_t        i;
    int           j;
    hsize_t      *c_coord;
    size_t        c_nelements;

    c_op = (H5S_seloper_t)*op;

    c_space_id = *space_id;
    rank       = H5Sget_simple_extent_ndims(c_space_id);

    c_coord = (hsize_t *)malloc(sizeof(hsize_t) * (size_t)rank * ((size_t)*nelements));
    if (!c_coord)
        return ret_value;
    for (i = 0; i < (size_t)*nelements; i++) {
        for (j = 0; j < rank; j++) {
            c_coord[(size_t)j + i * (size_t)rank] = (hsize_t)coord[(size_t)j + i * (size_t)rank];
        }
    }

    c_nelements = *nelements;
    status      = H5Sselect_elements(c_space_id, c_op, c_nelements, c_coord);
    if (status >= 0)
        ret_value = 0;
    free(c_coord);
    return ret_value;
}

/****if* H5Sf/h5sdecode_c
 * NAME
 *  h5sdecode_c
 * PURPOSE
 *  Call H5Sdecode
 * INPUTS
 *  buf    - Buffer for the data space object to be decoded.
 * OUTPUTS
 *  obj_id  - Object_id (non-negative)
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sdecode_c(_fcd buf, hid_t_f *obj_id)
/******/
{
    int            ret_value = -1;
    unsigned char *c_buf     = NULL; /* Buffer to hold C string */
    hid_t          c_obj_id;

    /*
     * Call H5Sdecode function.
     */

    c_buf = (unsigned char *)buf;

    c_obj_id = H5Sdecode(c_buf);
    if (c_obj_id < 0)
        return ret_value;

    *obj_id   = (hid_t_f)c_obj_id;
    ret_value = 0;

    return ret_value;
}

/****if* H5Sf/h5sencode_c
 * NAME
 *  h5sencode_c
 * PURPOSE
 *  Call H5Sencode
 * INPUTS
 *  obj_id - Identifier of the object to be encoded.
 *  buf    - Buffer for the object to be encoded into.
 *  nalloc - The size of the allocated buffer.
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sencode_c(_fcd buf, hid_t_f *obj_id, size_t_f *nalloc, hid_t_f *fapl_id)
/******/
{
    int            ret_value = -1;
    unsigned char *c_buf     = NULL; /* Buffer to hold C string */
    size_t         c_size;

    /* return just the size of the allocated buffer;
     * equivalent to C routine for which 'name' is set equal to NULL
     */

    if (*nalloc == 0) {

        if (H5Sencode2((hid_t)*obj_id, c_buf, &c_size, (hid_t)*fapl_id) < 0)
            return ret_value;

        *nalloc = (size_t_f)c_size;

        ret_value = 0;
        return ret_value;
    }

    c_size = (size_t)*nalloc;
    /*
     * Allocate buffer
     */
    if (NULL == (c_buf = (unsigned char *)malloc(c_size)))
        return ret_value;
    /*
     * Call H5Sencode function.
     */
    if (H5Sencode2((hid_t)*obj_id, c_buf, &c_size, (hid_t)*fapl_id) < 0) {
        return ret_value;
    }

    /* copy the C buffer to the FORTRAN buffer.
     * Can not use HD5packFstring because we don't want to
     * eliminate the NUL terminator or pad remaining space
     * with blanks.
     */

    memcpy(_fcdtocp(buf), (char *)c_buf, c_size);

    ret_value = 0;
    if (c_buf)
        free(c_buf);
    return ret_value;
}

/****if* H5Sf/h5sextent_equal_c
 * NAME
 *  h5sextent_equal_c
 * PURPOSE
 *  Call H5Sextent_equal
 * INPUTS
 *  space1_id - First dataspace identifier.
 *  space2_id - Second dataspace identifier.
 * OUTPUTS
 *  equal - TRUE if equal, FALSE if unequal.
 * RETURNS
 *  0 on success, -1 on failure
 * SOURCE
 */

int_f
h5sextent_equal_c(hid_t_f *space1_id, hid_t_f *space2_id, hid_t_f *c_equal)
/******/
{
    int ret_value = -1;

    if ((*c_equal = (hid_t_f)H5Sextent_equal((hid_t)*space1_id, (hid_t)*space2_id)) < 0)
        return ret_value;

    ret_value = 0;
    return ret_value;
}