VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d1_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d1_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d1_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d2_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d2_space2);
    VERIFY(ext_equal, TRUE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d2_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d2_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d3_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d3_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d3_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space2, d3_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");

    /* Compare small 2-D dataspace w/fixed max. dims against all others, including itself */
    ext_equal = H5Sextent_equal(d2_space3, null_space);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, scalar_space);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d1_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d1_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d1_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d1_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d2_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d2_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d2_space3);
    VERIFY(ext_equal, TRUE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d2_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d3_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d3_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d3_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space3, d3_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");

    /* Compare small 2-D dataspace w/unlimited max. dims against all others, including itself */
    ext_equal = H5Sextent_equal(d2_space4, null_space);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, scalar_space);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d1_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d1_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d1_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d1_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d2_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d2_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d2_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d2_space4);
    VERIFY(ext_equal, TRUE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d3_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d3_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d3_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d2_space4, d3_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");

    /* Compare small 3-D dataspace w/no max. dims against all others, including itself */
    ext_equal = H5Sextent_equal(d3_space1, null_space);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, scalar_space);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d1_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d1_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d1_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d1_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d2_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d2_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d2_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d2_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d3_space1);
    VERIFY(ext_equal, TRUE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d3_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d3_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space1, d3_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");

    /* Compare larger 2-D dataspace w/no max. dims against all others, including itself */
    ext_equal = H5Sextent_equal(d3_space2, null_space);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, scalar_space);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d1_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d1_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d1_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d1_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d2_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d2_space2);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d2_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d2_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d3_space1);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d3_space2);
    VERIFY(ext_equal, TRUE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d3_space3);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");
    ext_equal = H5Sextent_equal(d3_space2, d3_space4);
    VERIFY(ext_equal, FALSE, "H5Sextent_equal");

    /* Compare small 2-D dataspace w/fixed max. dims against all others, including itself */
    ext_e