path: root/test/tarray.c

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * 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 files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
 * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
 * access to either file, you may request a copy from help@hdfgroup.org.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/***********************************************************
*
* Test program:	 tarray
*
* Test the Array Datatype functionality
*
*************************************************************/

#include "testhdf5.h"
#include "H5srcdir.h"

#include "hdf5.h"

#define FILENAME   "tarray1.h5"
#define TESTFILE   "tarrold.h5"

/* 1-D array datatype */
#define ARRAY1_RANK	1
#define ARRAY1_DIM1 4

/* 3-D array datatype */
#define ARRAY2_RANK	3
#define ARRAY2_DIM1 3
#define ARRAY2_DIM2 4
#define ARRAY2_DIM3 5

/* 2-D array datatype */
#define ARRAY3_RANK	2
#define ARRAY3_DIM1 6
#define ARRAY3_DIM2 3

/* 1-D dataset with fixed dimensions */
#define SPACE1_RANK	1
#define SPACE1_DIM1	4

/****************************************************************
**
**  test_array_atomic_1d(): Test basic array datatype code.
**      Tests 1-D array of atomic datatypes
**
****************************************************************/
static void
test_array_atomic_1d(void)
{
    int wdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information to write */
    int rdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information read in */
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1;       /* Dataspace ID			*/
    hid_t		tid1;       /* Datatype ID			*/
    hsize_t		sdims1[] = {SPACE1_DIM1};
    hsize_t		tdims1[] = {ARRAY1_DIM1};
    int         ndims;      /* Array rank for reading */
    hsize_t		rdims1[H5S_MAX_RANK];    /* Array dimensions for reading */
    int        i,j;        /* counting variables */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 1-D Array of Atomic Datatypes Functionality\n"));

    /* Allocate and initialize array data to write */
    for(i = 0; i < SPACE1_DIM1; i++)
        for(j = 0; j < ARRAY1_DIM1; j++)
            wdata[i][j] = i * 10 + j;

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for datasets */
    sid1 = H5Screate_simple(SPACE1_RANK, sdims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a datatype to refer to */
    tid1 = H5Tarray_create2(H5T_NATIVE_INT, ARRAY1_RANK, tdims1);
    CHECK(tid1, FAIL, "H5Tarray_create2");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid1, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");


    /* Re-open file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

    /* Open the dataset */
    dataset = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Get the datatype */
    tid1 = H5Dget_type (dataset);
    CHECK(tid1, FAIL, "H5Dget_type");

    /* Check the array rank */
    ndims = H5Tget_array_ndims(tid1);
    VERIFY(ndims, ARRAY1_RANK, "H5Tget_array_ndims");

    /* Get the array dimensions */
    ret = H5Tget_array_dims2(tid1, rdims1);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i = 0; i < ndims; i++)
        if(rdims1[i] != tdims1[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n", (int)i, (int)rdims1[i], (int)i, (int)tdims1[i]);
            continue;
        } /* end if */

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read in */
    for(i = 0; i < SPACE1_DIM1; i++)
        for(j = 0; j < ARRAY1_DIM1; j++)
            if(wdata[i][j] != rdata[i][j]) {
                TestErrPrintf("Array data information doesn't match!, wdata[%d][%d]=%d, rdata[%d][%d]=%d\n", (int)i, (int)j, (int)wdata[i][j], (int)i, (int)j, (int)rdata[i][j]);
                continue;
            } /* end if */

    /* Close Datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");
} /* end test_array_atomic_1d() */

/****************************************************************
**
**  test_array_funcs(): Test some type functions that are and
**      aren't supposed to work with array type.
**
****************************************************************/
static void
test_array_funcs(void)
{
    hid_t		type;       /* Datatype ID */
    hsize_t		tdims1[] = {ARRAY1_DIM1};
    int                 size;
    H5T_pad_t           inpad;
    H5T_norm_t          norm;
    H5T_cset_t          cset;
    H5T_str_t           strpad;
    herr_t		ret;	    /* Generic return value */

    /* Create a datatype to refer to */
    type = H5Tarray_create2(H5T_IEEE_F32BE, ARRAY1_RANK, tdims1);
    CHECK(type, FAIL, "H5Tarray_create2");

    size=H5Tget_precision(type);
    CHECK(size, FAIL, "H5Tget_precision");

    size=H5Tget_size(type);
    CHECK(size, FAIL, "H5Tget_size");

    size=H5Tget_ebias(type);
    CHECK(size, FAIL, "H5Tget_ebias");

    ret=H5Tset_pad(type, H5T_PAD_ZERO, H5T_PAD_ONE);
    CHECK(ret, FAIL, "H5Tset_pad");

    inpad=H5Tget_inpad(type);
    CHECK(inpad, FAIL, "H5Tget_inpad");

    norm=H5Tget_norm(type);
    CHECK(norm, FAIL, "H5Tget_norm");

    ret=H5Tset_offset(type, (size_t)16);
    CHECK(ret, FAIL, "H5Tset_offset");

    H5E_BEGIN_TRY {
        cset=H5Tget_cset(type);
    } H5E_END_TRY;
    VERIFY(cset, FAIL, "H5Tget_cset");

    H5E_BEGIN_TRY {
        strpad=H5Tget_strpad(type);
    } H5E_END_TRY;
    VERIFY(strpad, FAIL, "H5Tget_strpad");

    /* Close datatype */
    ret = H5Tclose(type);
    CHECK(ret, FAIL, "H5Tclose");
} /* end test_array_funcs */

/****************************************************************
**
**  test_array_atomic_3d(): Test basic array datatype code.
**      Tests 3-D array of atomic datatypes
**
****************************************************************/
static void
test_array_atomic_3d(void)
{
    int wdata[SPACE1_DIM1][ARRAY2_DIM1][ARRAY2_DIM2][ARRAY2_DIM3];   /* Information to write */
    int rdata[SPACE1_DIM1][ARRAY2_DIM1][ARRAY2_DIM2][ARRAY2_DIM3];   /* Information read in */
    hid_t		fid;        /* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid;        /* Dataspace ID			*/
    hid_t		tid;        /* Datatype ID			*/
    hsize_t		sdims1[] = {SPACE1_DIM1};
    hsize_t		tdims2[] = {ARRAY2_DIM1,ARRAY2_DIM2,ARRAY2_DIM3};
    int         ndims;      /* Array rank for reading */
    hsize_t		rdims2[H5S_MAX_RANK];    /* Array dimensions for reading */
    int        i,j,k,l;    /* counting variables */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 3-D Array of Atomic Datatypes Functionality\n"));

    /* Allocate and initialize array data to write */
    for(i = 0; i < SPACE1_DIM1; i++)
        for(j = 0; j < ARRAY2_DIM1; j++)
            for(k = 0; k < ARRAY2_DIM2; k++)
                for(l = 0; l < ARRAY2_DIM3; l++)
                    wdata[i][j][k][l] = i * 1000 + j * 100 + k * 10 + l;

    /* Create file */
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create dataspace for datasets */
    sid = H5Screate_simple(SPACE1_RANK, sdims1, NULL);
    CHECK(sid, FAIL, "H5Screate_simple");

    /* Create a datatype to refer to */
    tid = H5Tarray_create2(H5T_NATIVE_INT, ARRAY2_RANK, tdims2);
    CHECK(tid, FAIL, "H5Tarray_create2");

    /* Create a dataset */
    dataset = H5Dcreate2(fid, "Dataset1", tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close datatype */
    ret = H5Tclose(tid);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");


    /* Re-open file */
    fid = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fopen");

    /* Open the dataset */
    dataset = H5Dopen2(fid, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Get the datatype */
    tid = H5Dget_type (dataset);
    CHECK(tid, FAIL, "H5Dget_type");

    /* Check the array rank */
    ndims = H5Tget_array_ndims(tid);
    VERIFY(ndims, ARRAY2_RANK, "H5Tget_array_ndims");

    /* Get the array dimensions */
    ret = H5Tget_array_dims2(tid, rdims2);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i = 0; i < ndims; i++)
        if(rdims2[i] != tdims2[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims2[%d]=%d, tdims2[%d]=%d\n", (int)i, (int)rdims2[i], (int)i, (int)tdims2[i]);
            continue;
        } /* end if */

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read in */
    for(i = 0; i < SPACE1_DIM1; i++)
        for(j = 0; j < ARRAY2_DIM1; j++)
            for(k = 0; k < ARRAY2_DIM2; k++)
                for(l = 0; l < ARRAY2_DIM3; l++)
                    if(wdata[i][j][k][l] != rdata[i][j][k][l]) {
                        TestErrPrintf("Array data information doesn't match!, wdata[%d][%d][%d][%d]=%d, rdata[%d][%d][%d][%d]=%d\n", (int)i, (int)j, (int)k, (int)l, (int)wdata[i][j][k][l], (int)i, (int)j, (int)k, (int)l, (int)rdata[i][j][k][l]);
                        continue;
                    } /* end if */

    /* Close Datatype */
    ret = H5Tclose(tid);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

} /* end test_array_atomic_3d() */

/****************************************************************
**
**  test_array_array_atomic(): Test basic array datatype code.
**      Tests 1-D array 2-D arrays of atomic datatypes
**
****************************************************************/
static void
test_array_array_atomic(void)
{
    int wdata[SPACE1_DIM1][ARRAY1_DIM1][ARRAY3_DIM1][ARRAY3_DIM2];   /* Information to write */
    int rdata[SPACE1_DIM1][ARRAY1_DIM1][ARRAY3_DIM1][ARRAY3_DIM2];   /* Information read in */
    hid_t		fid;        /* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid;        /* Dataspace ID			*/
    hid_t		tid1;       /* 1-D array Datatype ID */
    hid_t		tid2;       /* 2-D array Datatype ID */
    hsize_t		sdims1[] = {SPACE1_DIM1};
    hsize_t		tdims1[] = {ARRAY1_DIM1};
    hsize_t		tdims2[] = {ARRAY3_DIM1,ARRAY3_DIM2};
    int         ndims1;     /* Array rank for reading */
    int         ndims2;     /* Array rank for reading */
    hsize_t		rdims1[H5S_MAX_RANK];    /* Array dimensions for reading */
    hsize_t		rdims2[H5S_MAX_RANK];    /* Array dimensions for reading */
    int        i,j,k,l;    /* counting variables */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 1-D Array 2-D Arrays of Atomic Datatypes Functionality\n"));

    /* Allocate and initialize array data to write */
    for(i = 0; i < SPACE1_DIM1; i++)
        for(j = 0; j < ARRAY1_DIM1; j++)
            for(k = 0; k < ARRAY3_DIM1; k++)
                for(l = 0; l < ARRAY3_DIM2; l++)
                    wdata[i][j][k][l] = i * 1000 + j * 100 + k * 10 + l;

    /* Create file */
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create dataspace for datasets */
    sid = H5Screate_simple(SPACE1_RANK, sdims1, NULL);
    CHECK(sid, FAIL, "H5Screate_simple");

    /* Create a 2-D datatype to refer to */
    tid2 = H5Tarray_create2(H5T_NATIVE_INT, ARRAY3_RANK, tdims2);
    CHECK(tid2, FAIL, "H5Tarray_create2");

    /* Create a 1-D datatype to refer to */
    tid1 = H5Tarray_create2(tid2, ARRAY1_RANK, tdims1);
    CHECK(tid1, FAIL, "H5Tarray_create2");

    /* Create a dataset */
    dataset = H5Dcreate2(fid, "Dataset1", tid1, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close datatypes */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");


    /* Re-open file */
    fid = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fopen");

    /* Open the dataset */
    dataset = H5Dopen2(fid, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Get the 1-D datatype */
    tid1 = H5Dget_type(dataset);
    CHECK(tid1, FAIL, "H5Dget_type");

    /* Check the 1-D array rank */
    ndims1 = H5Tget_array_ndims(tid1);
    VERIFY(ndims1, ARRAY1_RANK, "H5Tget_array_ndims");

    /* Get the 1-D array dimensions */
    ret = H5Tget_array_dims2(tid1, rdims1);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i = 0; i < ndims1; i++)
        if(rdims1[i] != tdims1[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n", (int)i, (int)rdims1[i], (int)i, (int)tdims1[i]);
            continue;
        } /* end if */

    /* Get the 2-D datatype */
    tid2 = H5Tget_super(tid1);
    CHECK(tid2, FAIL, "H5Tget_super");

    /* Check the 2-D array rank */
    ndims2 = H5Tget_array_ndims(tid2);
    VERIFY(ndims2, ARRAY3_RANK, "H5Tget_array_ndims");

    /* Get the 2-D array dimensions */
    ret = H5Tget_array_dims2(tid2, rdims2);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i = 0; i < ndims2; i++)
        if(rdims2[i] != tdims2[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims2[%d]=%d, tdims2[%d]=%d\n", (int)i, (int)rdims2[i], (int)i, (int)tdims2[i]);
            continue;
        } /* end if */

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read in */
    for(i = 0; i < SPACE1_DIM1; i++)
        for(j = 0; j < ARRAY1_DIM1; j++)
            for(k = 0; k < ARRAY3_DIM1; k++)
                for(l = 0; l < ARRAY3_DIM2; l++)
                    if(wdata[i][j][k][l] != rdata[i][j][k][l]) {
                        TestErrPrintf("Array data information doesn't match!, wdata[%d][%d][%d][%d]=%d, rdata[%d][%d][%d][%d]=%d\n", (int)i, (int)j, (int)k, (int)l, (int)wdata[i][j][k][l], (int)i, (int)j, (int)k, (int)l, (int)rdata[i][j][k][l]);
                        continue;
                    } /* end if */

    /* Close Datatypes */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");
} /* end test_array_array_atomic() */

/****************************************************************
**
**  test_array_compound_atomic(): Test basic array datatype code.
**      Tests 1-D array of compound datatypes (with no array fields)
**
****************************************************************/
static void
test_array_compound_atomic(void)
{
    typedef struct {        /* Typedef for compound datatype */
        int i;
        float f;
    } s1_t;
    s1_t wdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information to write */
    s1_t rdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information read in */
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1;       /* Dataspace ID			*/
    hid_t		tid1;       /* Array Datatype ID			*/
    hid_t		tid2;       /* Compound Datatype ID			*/
    hsize_t		sdims1[] = {SPACE1_DIM1};
    hsize_t		tdims1[] = {ARRAY1_DIM1};
    int         ndims;      /* Array rank for reading */
    hsize_t		rdims1[H5S_MAX_RANK];    /* Array dimensions for reading */
    int         nmemb;      /* Number of compound members */
    char       *mname;      /* Name of compound field */
    size_t      off;        /* Offset of compound field */
    hid_t       mtid;       /* Datatype ID for field */
    int        i,j;        /* counting variables */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 1-D Array of Compound Atomic Datatypes Functionality\n"));

    /* Initialize array data to write */
    for(i = 0; i < SPACE1_DIM1; i++)
        for(j = 0; j < ARRAY1_DIM1; j++) {
            wdata[i][j].i = i * 10 + j;
            wdata[i][j].f = (float)(i * 2.5 + j);
        } /* end for */

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for datasets */
    sid1 = H5Screate_simple(SPACE1_RANK, sdims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a compound datatype to refer to */
    tid2 = H5Tcreate(H5T_COMPOUND, sizeof(s1_t));
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Insert integer field */
    ret = H5Tinsert(tid2, "i", HOFFSET(s1_t, i), H5T_NATIVE_INT);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Insert float field */
    ret = H5Tinsert(tid2, "f", HOFFSET(s1_t, f), H5T_NATIVE_FLOAT);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Create an array datatype to refer to */
    tid1 = H5Tarray_create2(tid2, ARRAY1_RANK, tdims1);
    CHECK(tid1, FAIL, "H5Tarray_create2");

    /* Close compound datatype */
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid1, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");


    /* Re-open file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

    /* Open the dataset */
    dataset = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Get the datatype */
    tid1 = H5Dget_type(dataset);
    CHECK(tid1, FAIL, "H5Dget_type");

    /* Check the array rank */
    ndims = H5Tget_array_ndims(tid1);
    VERIFY(ndims,ARRAY1_RANK,"H5Tget_array_ndims");

    /* Get the array dimensions */
    ret = H5Tget_array_dims2(tid1, rdims1);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i = 0; i < ndims; i++)
        if(rdims1[i] != tdims1[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n", (int)i, (int)rdims1[i], (int)i, (int)tdims1[i]);
            continue;
        } /* end if */

    /* Get the compound datatype */
    tid2 = H5Tget_super (tid1);
    CHECK(tid2, FAIL, "H5Tget_super");

    /* Check the number of members */
    nmemb = H5Tget_nmembers(tid2);
    VERIFY(nmemb,2,"H5Tget_nmembers");

    /* Check the 1st field's name */
    mname = H5Tget_member_name(tid2, 0);
    CHECK(mname, NULL, "H5Tget_member_name");
    if(HDstrcmp(mname, "i") != 0)
        TestErrPrintf("Compound field name doesn't match!, mname=%s\n", mname);
    free(mname);

    /* Check the 1st field's offset */
    off = H5Tget_member_offset(tid2, 0);
    VERIFY(off, HOFFSET(s1_t, i), "H5Tget_member_offset");

    /* Check the 1st field's datatype */
    mtid = H5Tget_member_type(tid2, 0);
    CHECK(mtid, FAIL, "H5Tget_member_type");
    if((ret = H5Tequal(mtid,H5T_NATIVE_INT)) <= 0)
        TestErrPrintf("Compound data type is incorrect!, ret=%d\n", (int)ret);
    ret = H5Tclose(mtid);
    CHECK(mtid, FAIL, "H5Tclose");

    /* Check the 2nd field's name */
    mname = H5Tget_member_name(tid2, 1);
    CHECK(mname, NULL, "H5Tget_member_name");
    if(HDstrcmp(mname, "f") != 0)
        TestErrPrintf("Compound field name doesn't match!, mname=%s\n", mname);
    free(mname);

    /* Check the 2nd field's offset */
    off = H5Tget_member_offset(tid2, 1);
    VERIFY(off, HOFFSET(s1_t, f), "H5Tget_member_offset");

    /* Check the 2nd field's datatype */
    mtid = H5Tget_member_type(tid2, 1);
    CHECK(mtid, FAIL, "H5Tget_member_type");
    if((ret = H5Tequal(mtid, H5T_NATIVE_FLOAT)) <= 0)
        TestErrPrintf("Compound data type is incorrect!, ret=%d\n", (int)ret);
    ret = H5Tclose(mtid);
    CHECK(mtid, FAIL, "H5Tclose");

    /* Close Compound Datatype */
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read in */
    for(i = 0; i < SPACE1_DIM1; i++)
        for(j = 0; j < ARRAY1_DIM1; j++) {
            if(wdata[i][j].i != rdata[i][j].i) {
                TestErrPrintf("Array data information doesn't match!, wdata[%d][%d].i=%d, rdata[%d][%d].i=%d\n", (int)i, (int)j, (int)wdata[i][j].i, (int)i, (int)j, (int)rdata[i][j].i);
                continue;
            } /* end if */
            if(!FLT_ABS_EQUAL(wdata[i][j].f, rdata[i][j].f)) {
                TestErrPrintf("Array data information doesn't match!, wdata[%d][%d].f=%f, rdata[%d][%d].f=%f\n", (int)i, (int)j, wdata[i][j].f, (int)i, (int)j, rdata[i][j].f);
                continue;
            } /* end if */
        } /* end for */

    /* Close Datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");
} /* end test_array_compound_atomic() */

/****************************************************************
**
**  test_array_compound_array(): Test basic array datatype code.
**      Tests 1-D array of compound datatypes (with array fields)
**
****************************************************************/
static void
test_array_compound_array(void)
{
    typedef struct {        /* Typedef for compound datatype */
        int i;
        float f[ARRAY1_DIM1];
    } s1_t;
    s1_t wdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information to write */
    s1_t rdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information read in */
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1;       /* Dataspace ID			*/
    hid_t		tid1;       /* Array Datatype ID	*/
    hid_t		tid2;       /* Compound Datatype ID	*/
    hid_t		tid3;       /* Nested Array Datatype ID	*/
    hsize_t		sdims1[] = {SPACE1_DIM1};
    hsize_t		tdims1[] = {ARRAY1_DIM1};
    int         ndims;      /* Array rank for reading */
    hsize_t		rdims1[H5S_MAX_RANK];    /* Array dimensions for reading */
    int         nmemb;      /* Number of compound members */
    char       *mname;      /* Name of compound field */
    size_t      off;        /* Offset of compound field */
    hid_t       mtid;       /* Datatype ID for field */
    H5T_class_t mclass;     /* Datatype class for field */
    int        i,j,k;      /* counting variables */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 1-D Array of Compound Array Datatypes Functionality\n"));

    /* Initialize array data to write */
    for(i=0; i<SPACE1_DIM1; i++)
        for(j=0; j<ARRAY1_DIM1; j++) {
            wdata[i][j].i=i*10+j;
            for(k=0; k<ARRAY1_DIM1; k++)
                wdata[i][j].f[k]=(float)(i*10+j*2.5+k);
        } /* end for */

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for datasets */
    sid1 = H5Screate_simple(SPACE1_RANK, sdims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a compound datatype to refer to */
    tid2 = H5Tcreate(H5T_COMPOUND, sizeof(s1_t));
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Insert integer field */
    ret = H5Tinsert (tid2, "i", HOFFSET(s1_t,i), H5T_NATIVE_INT);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Create an array of floats datatype */
    tid3 = H5Tarray_create2(H5T_NATIVE_FLOAT, ARRAY1_RANK, tdims1);
    CHECK(tid3, FAIL, "H5Tarray_create2");

    /* Insert float array field */
    ret = H5Tinsert(tid2, "f", HOFFSET(s1_t, f), tid3);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Close array of floats field datatype */
    ret = H5Tclose(tid3);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create an array datatype to refer to */
    tid1 = H5Tarray_create2(tid2, ARRAY1_RANK, tdims1);
    CHECK(tid1, FAIL, "H5Tarray_create2");

    /* Close compound datatype */
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid1, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");


    /* Re-open file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

    /* Open the dataset */
    dataset = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Get the datatype */
    tid1 = H5Dget_type (dataset);
    CHECK(tid1, FAIL, "H5Dget_type");

    /* Check the array rank */
    ndims=H5Tget_array_ndims(tid1);
    VERIFY(ndims,ARRAY1_RANK,"H5Tget_array_ndims");

    /* Get the array dimensions */
    ret = H5Tget_array_dims2(tid1, rdims1);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i=0; i<ndims; i++)
        if(rdims1[i]!=tdims1[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n",(int)i,(int)rdims1[i],(int)i,(int)tdims1[i]);
            continue;
        } /* end if */

    /* Get the compound datatype */
    tid2 = H5Tget_super (tid1);
    CHECK(tid2, FAIL, "H5Tget_super");

    /* Check the number of members */
    nmemb=H5Tget_nmembers(tid2);
    VERIFY(nmemb,2,"H5Tget_nmembers");

    /* Check the 1st field's name */
    mname=H5Tget_member_name(tid2,0);
    CHECK(mname, NULL, "H5Tget_member_name");
    if(HDstrcmp(mname,"i")!=0)
        TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
    free(mname);

    /* Check the 1st field's offset */
    off=H5Tget_member_offset(tid2,0);
    VERIFY(off, HOFFSET(s1_t,i), "H5Tget_member_offset");

    /* Check the 1st field's datatype */
    mtid=H5Tget_member_type(tid2,0);
    CHECK(mtid, FAIL, "H5Tget_member_type");
    if((ret=H5Tequal(mtid,H5T_NATIVE_INT))<=0)
        TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);
    ret=H5Tclose(mtid);
    CHECK(mtid, FAIL, "H5Tclose");

    /* Check the 2nd field's name */
    mname=H5Tget_member_name(tid2,1);
    CHECK(mname, NULL, "H5Tget_member_name");
    if(HDstrcmp(mname,"f")!=0)
        TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
    free(mname);

    /* Check the 2nd field's offset */
    off=H5Tget_member_offset(tid2,1);
    VERIFY(off, HOFFSET(s1_t,f), "H5Tget_member_offset");

    /* Check the 2nd field's datatype */
    mtid=H5Tget_member_type(tid2,1);
    CHECK(mtid, FAIL, "H5Tget_member_type");

    /* Get the 2nd field's class */
    mclass=H5Tget_class(mtid);
    VERIFY(mclass, H5T_ARRAY, "H5Tget_class");

    /* Check the array rank */
    ndims=H5Tget_array_ndims(mtid);
    VERIFY(ndims,ARRAY1_RANK,"H5Tget_array_ndims");

    /* Get the array dimensions */
    ret = H5Tget_array_dims2(mtid, rdims1);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i=0; i<ndims; i++)
        if(rdims1[i]!=tdims1[i]) {
            TestErrPrintf("Nested array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n",(int)i,(int)rdims1[i],(int)i,(int)tdims1[i]);
            continue;
        } /* end if */

    /* Check the nested array's datatype */
    tid3=H5Tget_super(mtid);
    CHECK(tid3, FAIL, "H5Tget_super");

    if((ret=H5Tequal(tid3,H5T_NATIVE_FLOAT))<=0)
        TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);

    /* Close the array's base type datatype */
    ret=H5Tclose(tid3);
    CHECK(mtid, FAIL, "H5Tclose");

    /* Close the member datatype */
    ret=H5Tclose(mtid);
    CHECK(mtid, FAIL, "H5Tclose");

    /* Close Compound Datatype */
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Read dataset from disk */
    ret=H5Dread(dataset,tid1,H5S_ALL,H5S_ALL,H5P_DEFAULT,rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        for(j=0; j<ARRAY1_DIM1; j++) {
            if(wdata[i][j].i!=rdata[i][j].i) {
                TestErrPrintf("Array data information doesn't match!, wdata[%d][%d].i=%d, rdata[%d][%d].i=%d\n",(int)i,(int)j,(int)wdata[i][j].i,(int)i,(int)j,(int)rdata[i][j].i);
                continue;
            } /* end if */
            for(k=0; k<ARRAY1_DIM1; k++)
                if(!FLT_ABS_EQUAL(wdata[i][j].f[k],rdata[i][j].f[k])) {
                    TestErrPrintf("Array data information doesn't match!, wdata[%d][%d].f[%d]=%f, rdata[%d][%d].f[%d]=%f\n",(int)i,(int)j,(int)k,wdata[i][j].f[k],(int)i,(int)j,(int)k,rdata[i][j].f[k]);
                    continue;
                } /* end if */
        } /* end for */
    } /* end for */

    /* Close Datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

} /* end test_array_compound_array() */

void *test_array_alloc_custom(size_t size, void *info);
void test_array_free_custom(void *mem, void *info);

/****************************************************************
**
**  test_array_alloc_custom(): Test VL datatype custom memory
**      allocation routines.  This routine just uses malloc to
**      allocate the memory and increments the amount of memory
**      allocated.
**
****************************************************************/
void *test_array_alloc_custom(size_t size, void *info)
{
    void *ret_value=NULL;       /* Pointer to return */
    int *mem_used=(int *)info;  /* Get the pointer to the memory used */
    size_t extra;               /* Extra space needed */

    /*
     *  This weird contortion is required on the DEC Alpha to keep the
     *  alignment correct - QAK
     */
    extra=MAX(sizeof(void *),sizeof(size_t));

    if((ret_value=HDmalloc(extra+size))!=NULL) {
        *(size_t *)ret_value=size;
        *mem_used+=size;
    } /* end if */
    ret_value=((unsigned char *)ret_value)+extra;
    return(ret_value);
}

/****************************************************************
**
**  test_array_free_custom(): Test VL datatype custom memory
**      allocation routines.  This routine just uses free to
**      release the memory and decrements the amount of memory
**      allocated.
**
****************************************************************/
void test_array_free_custom(void *_mem, void *info)
{
    unsigned char *mem;
    int *mem_used=(int *)info;  /* Get the pointer to the memory used */
    size_t extra;               /* Extra space needed */

    /*
     *  This weird contortion is required on the DEC Alpha to keep the
     *  alignment correct - QAK
     */
    extra=MAX(sizeof(void *),sizeof(size_t));

    if(_mem!=NULL) {
        mem=((unsigned char *)_mem)-extra;
        *mem_used-=*(size_t *)mem;
        HDfree(mem);
    } /* end if */
}

/****************************************************************
**
**  test_array_vlen_atomic(): Test basic array datatype code.
**      Tests 1-D array of atomic VL datatypes
**
****************************************************************/
static void
test_array_vlen_atomic(void)
{
    hvl_t wdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information to write */
    hvl_t rdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information read in */
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1;       /* Dataspace ID			*/
    hid_t		tid1;       /* Array Datatype ID			*/
    hid_t		tid2;       /* VL Datatype ID       */
    hid_t		tid3;       /* Atomic Datatype ID   */
    hsize_t		sdims1[] = {SPACE1_DIM1};
    hsize_t		tdims1[] = {ARRAY1_DIM1};
    int         ndims;      /* Array rank for reading */
    hsize_t		rdims1[H5S_MAX_RANK];    /* Array dimensions for reading */
    H5T_class_t mclass;     /* Datatype class for VL */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t     size;       /* Number of bytes which will be used */
    int         mem_used=0; /* Memory used during allocation */
    int        i,j,k;      /* counting variables */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 1-D Array of Atomic Variable-Length Datatypes Functionality\n"));

    /* Initialize array data to write */
    for(i=0; i<SPACE1_DIM1; i++)
        for(j=0; j<ARRAY1_DIM1; j++) {
            wdata[i][j].p=malloc((i+j+1)*sizeof(unsigned int));
            wdata[i][j].len=i+j+1;
            for(k=0; k<(i+j+1); k++)
                ((unsigned int *)wdata[i][j].p)[k]=i*100+j*10+k;
        } /* end for */

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for datasets */
    sid1 = H5Screate_simple(SPACE1_RANK, sdims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a compound datatype to refer to */
    tid2 = H5Tvlen_create(H5T_NATIVE_UINT);
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Create an array datatype to refer to */
    tid1 = H5Tarray_create2(tid2, ARRAY1_RANK, tdims1);
    CHECK(tid1, FAIL, "H5Tarray_create2");

    /* Close VL datatype */
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid1, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");


    /* Re-open file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

    /* Open the dataset */
    dataset = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Get the dataspace */
    sid1 = H5Dget_space (dataset);
    CHECK(sid1, FAIL, "H5Dget_space");

    /* Get the datatype */
    tid1 = H5Dget_type (dataset);
    CHECK(tid1, FAIL, "H5Dget_type");

    /* Check the array rank */
    ndims=H5Tget_array_ndims(tid1);
    VERIFY(ndims,ARRAY1_RANK,"H5Tget_array_ndims");

    /* Get the array dimensions */
    ret = H5Tget_array_dims2(tid1, rdims1);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i=0; i<ndims; i++)
        if(rdims1[i]!=tdims1[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n",(int)i,(int)rdims1[i],(int)i,(int)tdims1[i]);
            continue;
        } /* end if */

    /* Get the VL datatype */
    tid2 = H5Tget_super (tid1);
    CHECK(tid2, FAIL, "H5Tget_super");

    /* Get the 2nd field's class */
    mclass=H5Tget_class(tid2);
    VERIFY(mclass, H5T_VLEN, "H5Tget_class");

    /* Check the VL datatype's base type */
    tid3=H5Tget_super(tid2);
    CHECK(tid3, FAIL, "H5Tget_super");

    if((ret=H5Tequal(tid3,H5T_NATIVE_UINT))<=0)
        TestErrPrintf("VL base datatype is incorrect!, ret=%d\n",(int)ret);

    /* Close the array's base type datatype */
    ret=H5Tclose(tid3);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close VL Datatype */
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Change to the custom memory allocation routines for reading VL data */
    xfer_pid=H5Pcreate(H5P_DATASET_XFER);
    CHECK(xfer_pid, FAIL, "H5Pcreate");

    ret=H5Pset_vlen_mem_manager(xfer_pid,test_array_alloc_custom,&mem_used,test_array_free_custom,&mem_used);
    CHECK(ret, FAIL, "H5Pset_vlen_mem_manager");

    /* Make certain the correct amount of memory will be used */
    ret=H5Dvlen_get_buf_size(dataset,tid1,sid1,&size);
    CHECK(ret, FAIL, "H5Dvlen_get_buf_size");

    /* # elements allocated = (1 + 2 + 3 + 4) + (2 + 3 + 4 + 5) +
     *  (3 + 4 + 5 + 6) + (4 + 5 + 6 + 7) = 64 elements
     */
    VERIFY(size,64*sizeof(unsigned int),"H5Dvlen_get_buf_size");

    /* Read dataset from disk */
    ret=H5Dread(dataset,tid1,H5S_ALL,H5S_ALL,xfer_pid,rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Make certain the correct amount of memory has been used */
    /* # elements allocated = (1 + 2 + 3 + 4) + (2 + 3 + 4 + 5) +
     *  (3 + 4 + 5 + 6) + (4 + 5 + 6 + 7) = 64 elements
     */
    VERIFY(mem_used,64*sizeof(unsigned int),"H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        for(j=0; j<ARRAY1_DIM1; j++) {
            if(wdata[i][j].len!=rdata[i][j].len) {
                TestErrPrintf("VL data length don't match!, wdata[%d][%d].len=%d, rdata[%d][%d].len=%d\n",(int)i,(int)j,(int)wdata[i][j].len,(int)i,(int)j,(int)rdata[i][j].len);
                continue;
            } /* end if */
            for(k=0; k<(int)rdata[i][j].len; k++) {
                if( ((unsigned int *)wdata[i][j].p)[k] != ((unsigned int *)rdata[i][j].p)[k] ) {
                    TestErrPrintf("VL data values don't match!, wdata[%d][%d].p[%d]=%d, rdata[%d][%d].p[%d]=%d\n",(int)i,(int)j,(int)k, (int)((unsigned int *)wdata[i][j].p)[k], (int)i,(int)j,(int)k, (int)((unsigned int *)rdata[i][j].p)[k]);
                    continue;
                } /* end if */
            } /* end for */
        } /* end for */
    } /* end for */

    /* Reclaim the read VL data */
    ret=H5Dvlen_reclaim(tid1,sid1,xfer_pid,rdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    /* Make certain the VL memory has been freed */
    VERIFY(mem_used,0,"H5Dvlen_reclaim");

    /* Reclaim the write VL data */
    ret=H5Dvlen_reclaim(tid1,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    /* Close dataset transfer property list */
    ret = H5Pclose(xfer_pid);
    CHECK(ret, FAIL, "H5Pclose");

    /* Close Datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

} /* end test_array_vlen_atomic() */

/****************************************************************
**
**  test_array_vlen_array(): Test basic array datatype code.
**      Tests 1-D array of 1-D array VL datatypes
**
****************************************************************/
static void
test_array_vlen_array(void)
{
    hvl_t wdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information to write */
    hvl_t rdata[SPACE1_DIM1][ARRAY1_DIM1];   /* Information read in */
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1;       /* Dataspace ID			*/
    hid_t		tid1;       /* Array Datatype ID			*/
    hid_t		tid2;       /* VL Datatype ID       */
    hid_t		tid3;       /* Nested Array Datatype ID   */
    hid_t		tid4;       /* Atomic Datatype ID   */
    hsize_t		sdims1[] = {SPACE1_DIM1};
    hsize_t		tdims1[] = {ARRAY1_DIM1};
    int         ndims;      /* Array rank for reading */
    hsize_t		rdims1[H5S_MAX_RANK];    /* Array dimensions for reading */
    H5T_class_t mclass;     /* Datatype class for VL */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t     size;       /* Number of bytes which will be used */
    int         mem_used=0; /* Memory used during allocation */
    int        i,j,k,l;    /* Index variables */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 1-D Array of 1-D Array Variable-Length Datatypes Functionality\n"));

    /* Initialize array data to write */
    for(i=0; i<SPACE1_DIM1; i++)
        for(j=0; j<ARRAY1_DIM1; j++) {
            wdata[i][j].p=malloc((i+j+1)*(sizeof(unsigned int)*ARRAY1_DIM1));
            wdata[i][j].len=i+j+1;
            for(k=0; k<(i+j+1); k++)
                for(l=0; l<ARRAY1_DIM1; l++)
                    ((unsigned int *)wdata[i][j].p)[k*ARRAY1_DIM1+l]=i*1000+j*100+k*10+l;
        } /* end for */

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for datasets */
    sid1 = H5Screate_simple(SPACE1_RANK, sdims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create the nested array datatype to refer to */
    tid3 = H5Tarray_create2(H5T_NATIVE_UINT, ARRAY1_RANK, tdims1);
    CHECK(tid3, FAIL, "H5Tarray_create2");

    /* Create a VL datatype of 1-D arrays to refer to */
    tid2 = H5Tvlen_create(tid3);
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Close nested array datatype */
    ret = H5Tclose(tid3);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create an array datatype to refer to */
    tid1 = H5Tarray_create2(tid2, ARRAY1_RANK, tdims1);
    CHECK(tid1, FAIL, "H5Tarray_create2");

    /* Close VL datatype */
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid1, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");


    /* Re-open file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

    /* Open the dataset */
    dataset = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Get the dataspace */
    sid1 = H5Dget_space (dataset);
    CHECK(sid1, FAIL, "H5Dget_space");

    /* Get the datatype */
    tid1 = H5Dget_type (dataset);
    CHECK(tid1, FAIL, "H5Dget_type");

    /* Check the array rank */
    ndims=H5Tget_array_ndims(tid1);
    VERIFY(ndims,ARRAY1_RANK,"H5Tget_array_ndims");

    /* Get the array dimensions */
    ret = H5Tget_array_dims2(tid1, rdims1);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i=0; i<ndims; i++)
        if(rdims1[i]!=tdims1[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n",(int)i,(int)rdims1[i],(int)i,(int)tdims1[i]);
            continue;
        } /* end if */

    /* Get the VL datatype */
    tid2 = H5Tget_super (tid1);
    CHECK(tid2, FAIL, "H5Tget_super");

    /* Get the VL datatype's class */
    mclass=H5Tget_class(tid2);
    VERIFY(mclass, H5T_VLEN, "H5Tget_class");

    /* Check the VL datatype's base type */
    tid3=H5Tget_super(tid2);
    CHECK(tid3, FAIL, "H5Tget_super");

    /* Get the nested array datatype's class */
    mclass=H5Tget_class(tid3);
    VERIFY(mclass, H5T_ARRAY, "H5Tget_class");

    /* Check the array rank */
    ndims=H5Tget_array_ndims(tid3);
    VERIFY(ndims,ARRAY1_RANK,"H5Tget_array_ndims");

    /* Get the array dimensions */
    ret = H5Tget_array_dims2(tid3, rdims1);
    CHECK(ret, FAIL, "H5Tget_array_dims2");

    /* Check the array dimensions */
    for(i=0; i<ndims; i++)
        if(rdims1[i]!=tdims1[i]) {
            TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n",(int)i,(int)rdims1[i],(int)i,(int)tdims1[i]);
            continue;
        } /* end if */

    /* Check the array's base type */
    tid4=H5Tget_super(tid3);
    CHECK(tid4, FAIL, "H5Tget_super");


    if((ret=H5Tequal(tid4,H5T_NATIVE_UINT))<=0)
        TestErrPrintf("VL base datatype is incorrect!, ret=%d\n",(int)ret);

    /* Close the array's base type datatype */
    ret=H5Tclose(tid4);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close the nested array datatype */
    ret=H5Tclose(tid3);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close VL Datatype */
    ret = H5Tclose(tid2);
    CHECK(ret, FAIL, "H5Tclose");

    /* Change to the custom memory allocation routines for reading VL data */
    xfer_pid=H5Pcreate(H5P_DATASET_XFER);
    CHECK(xfer_pid, FAIL, "H5Pcreate");

    ret=H5Pset_vlen_mem_manager(xfer_pid,test_array_alloc_custom,&mem_used,test_array_free_custom,&mem_used);
    CHECK(ret, FAIL, "H5Pset_vlen_mem_manager");

    /* Make certain the correct amount of memory will be used */
    ret=H5Dvlen_get_buf_size(dataset,tid1,sid1,&size);
    CHECK(ret, FAIL, "H5Dvlen_get_buf_size");

    /* # elements allocated = (1 + 2 + 3 + 4) + (2 + 3 + 4 + 5) +
     *  (3 + 4 + 5 + 6) + (4 + 5 + 6 + 7) = 64*ARRAY1_DIM1 elements
     */
    VERIFY(size,64*(sizeof(unsigned int)*ARRAY1_DIM1),"H5Dvlen_get_buf_size");

    /* Read dataset from disk */
    ret=H5Dread(dataset,tid1,H5S_ALL,H5S_ALL,xfer_pid,rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Make certain the correct amount of memory has been used */
    /* # elements allocated = (1 + 2 + 3 + 4) + (2 + 3 + 4 + 5) +
     *  (3 + 4 + 5 + 6) + (4 + 5 + 6 + 7) = 64*ARRAY1_DIM1 elements
     */
    VERIFY(mem_used,64*(sizeof(unsigned int)*ARRAY1_DIM1),"H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        for(j=0; j<ARRAY1_DIM1; j++) {
            if(wdata[i][j].len!=rdata[i][j].len) {
                TestErrPrintf("VL data length don't match!, wdata[%d][%d].len=%d, rdata[%d][%d].len=%d\n",(int)i,(int)j,(int)wdata[i][j].len,(int)i,(int)j,(int)rdata[i][j].len);
                continue;
            } /* end if */
            for(k=0; k<(int)rdata[i][j].len; k++) {
                for(l=0; l<ARRAY1_DIM1; l++) {
                    if( ((unsigned int *)wdata[i][j].p)[k*ARRAY1_DIM1+l] != ((unsigned int *)rdata[i][j].p)[k*ARRAY1_DIM1+l] ) {
                        TestErrPrintf("VL data values don't match!, wdata[%d][%d].p[%d][%d]=%d, rdata[%d][%d].p[%d][%d]=%d\n",(int)i,(int)j,(int)k,(int)l, (int)((unsigned int *)wdata[i][j].p)[k*ARRAY1_DIM1+l], (int)i,(int)j,(int)k,(int)l, (int)((unsigned int *)rdata[i][j].p)[k*ARRAY1_DIM1+l]);
                        continue;
                    } /* end if */
                } /* end for */
            } /* end for */
        } /* end for */
    } /* end for */

    /* Reclaim the read VL data */
    ret=H5Dvlen_reclaim(tid1,sid1,xfer_pid,rdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    /* Make certain the VL memory has been freed */
    VERIFY(mem_used,0,"H5Dvlen_reclaim");

    /* Reclaim the write VL data */
    ret=H5Dvlen_reclaim(tid1,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    /* Close dataset transfer property list */
    ret = H5Pclose(xfer_pid);
    CHECK(ret, FAIL, "H5Pclose");

    /* Close Datatype */
    ret = H5Tclose(tid1);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

} /* end test_array_vlen_array() */

#define FIELDNAME  "ArrayofStructures"
#define LENGTH     5
#define ALEN       10
#define RANK       1
#define NMAX       100

typedef struct
{
  int      nsubfields;
  char     *name[NMAX];
  size_t   offset[NMAX];
  hid_t    datatype[NMAX];

} CmpDTSinfo;

/****************************************************************
**
**  test_array_bkg(): Test basic array datatype code.
**      Tests reading compound datatype with array fields and
**          writing partial fields.
**
****************************************************************/
static void
test_array_bkg(void)
{
    herr_t       status = -1;

    hid_t        fid, array_dt;
    hid_t        space;
    hid_t        type;
    hid_t        dataset;

    hsize_t      dim[] = {LENGTH};
    hsize_t      dima[] = {ALEN};

    int          i, j;
    unsigned     ndims[3] = {1,1,1};

    typedef struct
    {
	  int      a[ALEN];
	  float    b[ALEN];
	  double   c[ALEN];
    } CmpField;

    CmpField     cf[LENGTH];
    CmpField     cfr[LENGTH];
    CmpDTSinfo   dtsinfo;

    typedef struct
    {
      float   b[ALEN];
    } fld_t;

    fld_t   fld[LENGTH];
    fld_t   fldr[LENGTH];

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Partial I/O of Array Fields in Compound Datatype Functionality\n"));

    /* Initialize the data */
    /* ------------------- */
    for (i = 0; i < LENGTH; i++)
	  {
		for (j = 0; j < ALEN; j++)
		  {
			cf[i].a[j] = 100*(i+1) + j;
			cf[i].b[j] = (float)(100.*(i+1) + 0.01*j);
			cf[i].c[j] = 100.*(i+1) + 0.02*j;
		  }
	  }


    /* Set the number of data members */
    /* ------------------------------ */
    dtsinfo.nsubfields = 3;

    /* Initialize the offsets  */
    /* ----------------------- */
    dtsinfo.offset[0]   = HOFFSET(CmpField, a);
    dtsinfo.offset[1]   = HOFFSET(CmpField, b);
    dtsinfo.offset[2]   = HOFFSET(CmpField, c);

    /* Initialize the data type IDs */
    /* ---------------------------- */
    dtsinfo.datatype[0] = H5T_NATIVE_INT;
    dtsinfo.datatype[1] = H5T_NATIVE_FLOAT;
    dtsinfo.datatype[2] = H5T_NATIVE_DOUBLE;


    /* Initialize the names of data members */
    /* ------------------------------------ */
    for (i = 0; i < dtsinfo.nsubfields; i++)
      dtsinfo.name[i] = (char *)HDcalloc((size_t)20, sizeof(char));

	strcpy(dtsinfo.name[0], "One");
	strcpy(dtsinfo.name[1], "Two");
	strcpy(dtsinfo.name[2], "Three");


    /* Create file */
    /* ----------- */
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create data space */
    /* ----------------- */
    space  = H5Screate_simple(RANK, dim, NULL);
    CHECK(space, FAIL, "H5Screate_simple");

    /* Create the memory data type */
    /* --------------------------- */
    type   = H5Tcreate(H5T_COMPOUND, sizeof(CmpField));
    CHECK(type, FAIL, "H5Tcreate");


    /* Add  members to the compound data type */
    /* -------------------------------------- */
    for ( i = 0; i < dtsinfo.nsubfields; i++)
    {
        array_dt = H5Tarray_create2(dtsinfo.datatype[i], ndims[i], dima);
        CHECK(array_dt, FAIL, "H5Tarray_create2");

        status = H5Tinsert (type, dtsinfo.name[i], dtsinfo.offset[i], array_dt);
        CHECK(status, FAIL, "H5Tinsert");

        status = H5Tclose(array_dt);
        CHECK(status, FAIL, "H5Tclose");
    }

    /* Create the dataset */
    /* ------------------ */
    dataset = H5Dcreate2(fid, FIELDNAME, type, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write data to the dataset */
    /* ------------------------- */
    status = H5Dwrite(dataset, type, H5S_ALL, H5S_ALL, H5P_DEFAULT, cf);
    CHECK(status, FAIL, "H5Dwrite");

    status = H5Dread(dataset, type, H5S_ALL, H5S_ALL, H5P_DEFAULT, cfr);
    CHECK(status, FAIL, "H5Dread");

    /* Verify correct data */
    /* ------------------- */
    for (i = 0; i < LENGTH; i++) {
        for (j = 0; j < ALEN; j++) {
            if(cf[i].a[j]!=cfr[i].a[j]) {
                TestErrPrintf("Field a data doesn't match, cf[%d].a[%d]=%d, cfr[%d].a[%d]=%d\n",(int)i,(int)j,(int)cf[i].a[j],(int)i,(int)j,(int)cfr[i].a[j]);
                continue;
            }
            if(!FLT_ABS_EQUAL(cf[i].b[j],cfr[i].b[j])) {
                TestErrPrintf("Field b data doesn't match, cf[%d].b[%d]=%f, cfr[%d].b[%d]=%f\n",(int)i,(int)j,(float)cf[i].b[j],(int)i,(int)j,(float)cfr[i].b[j]);
                continue;
            }
            if(!DBL_ABS_EQUAL(cf[i].c[j],cfr[i].c[j])) {
                TestErrPrintf("Field c data doesn't match, cf[%d].b[%d]=%f, cfr[%d].b[%d]=%f\n",(int)i,(int)j,(float)cf[i].c[j],(int)i,(int)j,(float)cfr[i].c[j]);
                continue;
            }
        }
    }


    /* Release memory resources */
    /* ------------------------ */
    for (i = 0; i < dtsinfo.nsubfields; i++)
        free(dtsinfo.name[i]);


    /* Release IDs */
    /* ----------- */
    status = H5Tclose(type);
    CHECK(status, FAIL, "H5Tclose");

    status = H5Sclose(space);
    CHECK(status, FAIL, "H5Sclose");

    status = H5Dclose(dataset);
    CHECK(status, FAIL, "H5Dclose");

    status = H5Fclose(fid);
    CHECK(status, FAIL, "H5Fclose");


/******************************/
/* Reopen the file and update */
/******************************/

    fid = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fopen");

    dataset = H5Dopen2(fid, FIELDNAME, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    type = H5Tcreate(H5T_COMPOUND, sizeof(fld_t));
    CHECK(type, FAIL, "H5Tcreate");

    array_dt = H5Tarray_create2(H5T_NATIVE_FLOAT, 1, dima);
    CHECK(array_dt, FAIL, "H5Tarray_create2");

    status = H5Tinsert (type, "Two", HOFFSET(fld_t, b), array_dt);
    CHECK(status, FAIL, "H5Tinsert");

    /* Initialize the data to overwrite */
    /* -------------------------------- */
    for (i=0; i< LENGTH; i++)
        for (j = 0; j < ALEN; j++)
            cf[i].b[j]=fld[i].b[j] = (float)1.313;

    status = H5Dwrite (dataset, type, H5S_ALL, H5S_ALL, H5P_DEFAULT, fld);
    CHECK(status, FAIL, "H5Dwrite");

    /* Read just the field changed */
    status = H5Dread (dataset, type, H5S_ALL, H5S_ALL, H5P_DEFAULT, fldr);
    CHECK(status, FAIL, "H5Dread");

    for (i=0; i< LENGTH; i++)
        for (j = 0; j < ALEN; j++)
            if(!FLT_ABS_EQUAL(fld[i].b[j],fldr[i].b[j])) {
                TestErrPrintf("Field data doesn't match, fld[%d].b[%d]=%f, fldr[%d].b[%d]=%f\n",(int)i,(int)j,(float)fld[i].b[j],(int)i,(int)j,(float)fldr[i].b[j]);
                continue;
            }

    status = H5Tclose (type);
    CHECK(status, FAIL, "H5Tclose");

    status = H5Tclose (array_dt);
    CHECK(status, FAIL, "H5Tclose");

    type = H5Dget_type(dataset);
    CHECK(type, FAIL, "H5Dget_type");

    /* Read the entire dataset again */
    status = H5Dread(dataset, type, H5S_ALL, H5S_ALL, H5P_DEFAULT, cfr);
    CHECK(status, FAIL, "H5Dread");

    /* Verify correct data */
    /* ------------------- */
    for (i = 0; i < LENGTH; i++) {
        for (j = 0; j < ALEN; j++) {
            if(cf[i].a[j]!=cfr[i].a[j]) {
                TestErrPrintf("Field a data doesn't match, cf[%d].a[%d]=%d, cfr[%d].a[%d]=%d\n",(int)i,(int)j,(int)cf[i].a[j],(int)i,(int)j,(int)cfr[i].a[j]);
                continue;
            }
            if(!FLT_ABS_EQUAL(cf[i].b[j],cfr[i].b[j])) {
                TestErrPrintf("Field b data doesn't match, cf[%d].b[%d]=%f, cfr[%d].b[%d]=%f\n",(int)i,(int)j,(float)cf[i].b[j],(int)i,(int)j,(float)cfr[i].b[j]);
                continue;
            }
            if(!DBL_ABS_EQUAL(cf[i].c[j],cfr[i].c[j])) {
                TestErrPrintf("Field c data doesn't match, cf[%d].b[%d]=%f, cfr[%d].b[%d]=%f\n",(int)i,(int)j,(float)cf[i].c[j],(int)i,(int)j,(float)cfr[i].c[j]);
                continue;
            }
        }
    }

    status = H5Dclose(dataset);
    CHECK(status, FAIL, "H5Dclose");

    status = H5Tclose (type);
    CHECK(status, FAIL, "H5Tclose");

    status = H5Fclose(fid);
    CHECK(status, FAIL, "H5Fclose");

/****************************************************/
/* Reopen the file and print out all the data again */
/****************************************************/

    fid = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fopen");

    dataset = H5Dopen2(fid, FIELDNAME, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    type = H5Dget_type(dataset);
    CHECK(type, FAIL, "H5Dget_type");


    /* Reset the data to read in */
    /* ------------------------- */
    memset(cfr, 0, sizeof(CmpField)*LENGTH);

    status = H5Dread(dataset, type, H5S_ALL, H5S_ALL, H5P_DEFAULT, cfr);
    CHECK(status, FAIL, "H5Dread");

    /* Verify correct data */
    /* ------------------- */
    for (i = 0; i < LENGTH; i++) {
        for (j = 0; j < ALEN; j++) {
            if(cf[i].a[j]!=cfr[i].a[j]) {
                TestErrPrintf("Field a data doesn't match, cf[%d].a[%d]=%d, cfr[%d].a[%d]=%d\n",(int)i,(int)j,(int)cf[i].a[j],(int)i,(int)j,(int)cfr[i].a[j]);
                continue;
            }
            if(!FLT_ABS_EQUAL(cf[i].b[j],cfr[i].b[j])) {
                TestErrPrintf("Field b data doesn't match, cf[%d].b[%d]=%f, cfr[%d].b[%d]=%f\n",(int)i,(int)j,(float)cf[i].b[j],(int)i,(int)j,(float)cfr[i].b[j]);
                continue;
            }
            if(!DBL_ABS_EQUAL(cf[i].c[j],cfr[i].c[j])) {
                TestErrPrintf("Field c data doesn't match, cf[%d].b[%d]=%f, cfr[%d].b[%d]=%f\n",(int)i,(int)j,(float)cf[i].c[j],(int)i,(int)j,(float)cfr[i].c[j]);
                continue;
            }
        }
    }

    status = H5Dclose(dataset);
    CHECK(status, FAIL, "H5Dclose");

    status = H5Tclose (type);
    CHECK(status, FAIL, "H5Tclose");

    status = H5Fclose(fid);
    CHECK(status, FAIL, "H5Fclose");
} /* end test_array_bkg() */

/****************************************************************
**
**  test_compat(): Test array datatype compatibility code.
**      Reads file containing old version of datatype object header
**      messages for compound datatypes and verifies reading the older
**      version of the is working correctly.
**
****************************************************************/
static void
test_compat(void)
{
    char testfile[512]="";          /* Character buffer for corrected test file name */
    char *srcdir = getenv("srcdir");    /* Pointer to the directory the source code is located within */
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		tid1;       /* Array Datatype ID			*/
    hid_t		tid2;       /* Datatype ID          */
    hsize_t		tdims1[] = {ARRAY1_DIM1};
    int         ndims;      /* Array rank for reading */
    hsize_t		rdims1[H5S_MAX_RANK];    /* Array dimensions for reading */
    H5T_class_t mclass;     /* Datatype class for VL */
    int         nmemb;      /* Number of compound members */
    char       *mname;      /* Name of compound field */
    size_t      off;        /* Offset of compound field */
    hid_t       mtid;       /* Datatype ID for field */
    int        i;          /* Index variables */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Array Datatypes Compatibility Functionality\n"));

    /*
     * Try reading a file that has been prepared that has datasets with
     * compound datatypes which use an older version (version 1) of the
     * datatype object header message for describing the datatype.
     *
     * If this test fails and the datatype object header message version has
     *  changed, follow the instructions in gen_old_array.c for regenerating
     *  the tarrold.h5 file.
     */
    /* Generate the correct name for the test file, by prepending the source path */
    if (srcdir && ((strlen(srcdir) + strlen(TESTFILE) + 1) < sizeof(testfile))) {
        strcpy(testfile, srcdir);
        strcat(testfile, "/");
    }
    strcat(testfile, TESTFILE);

    /* Open the testfile */
    fid1 = H5Fopen(testfile, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK_I(fid1, "H5Fopen");

    /* Only try to proceed if the file is around */
    if (fid1 >= 0){
        /* Open the first dataset (with no array fields) */
        dataset = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
        CHECK_I(dataset, "H5Dopen2");

        /* Get the datatype */
        tid1=H5Dget_type(dataset);
        CHECK_I(tid1, "H5Dget_type");

        /* Verify datatype class */
        mclass=H5Tget_class(tid1);
        VERIFY(mclass, H5T_COMPOUND, "H5Tget_class");

        /* Get the number of compound datatype fields */
        nmemb=H5Tget_nmembers(tid1);
        VERIFY(nmemb,3,"H5Tget_nmembers");

        /* Check the 1st field's name */
        mname=H5Tget_member_name(tid1,0);
        CHECK(mname, NULL, "H5Tget_member_name");
        if(HDstrcmp(mname,"i")!=0)
            TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
        free(mname);

        /* Check the 1st field's offset */
        off=H5Tget_member_offset(tid1,0);
        VERIFY(off, 0, "H5Tget_member_offset");

        /* Check the 1st field's datatype */
        mtid=H5Tget_member_type(tid1,0);
        CHECK(mtid, FAIL, "H5Tget_member_type");
        if((ret=H5Tequal(mtid,H5T_STD_I16LE))<=0)
            TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);
        ret=H5Tclose(mtid);
        CHECK(mtid, FAIL, "H5Tclose");

        /* Check the 2nd field's name */
        mname=H5Tget_member_name(tid1,1);
        CHECK(mname, NULL, "H5Tget_member_name");
        if(HDstrcmp(mname,"f")!=0)
            TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
        free(mname);

        /* Check the 2nd field's offset */
        off=H5Tget_member_offset(tid1,1);
        VERIFY(off, 4, "H5Tget_member_offset");

        /* Check the 2nd field's datatype */
        mtid=H5Tget_member_type(tid1,1);
        CHECK(mtid, FAIL, "H5Tget_member_type");
        if((ret=H5Tequal(mtid,H5T_IEEE_F32LE))<=0)
            TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);
        ret=H5Tclose(mtid);
        CHECK(mtid, FAIL, "H5Tclose");

        /* Check the 3rd field's name */
        mname=H5Tget_member_name(tid1,2);
        CHECK(mname, NULL, "H5Tget_member_name");
        if(HDstrcmp(mname,"l")!=0)
            TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
        free(mname);

        /* Check the 3rd field's offset */
        off=H5Tget_member_offset(tid1,2);
        VERIFY(off, 8, "H5Tget_member_offset");

        /* Check the 3rd field's datatype */
        mtid=H5Tget_member_type(tid1,2);
        CHECK(mtid, FAIL, "H5Tget_member_type");
        if((ret=H5Tequal(mtid,H5T_STD_I32LE))<=0)
            TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);
        ret=H5Tclose(mtid);
        CHECK(mtid, FAIL, "H5Tclose");

        /* Close the datatype */
        ret = H5Tclose(tid1);
        CHECK_I(ret, "H5Tclose");

        /* Close the dataset */
        ret = H5Dclose(dataset);
        CHECK_I(ret, "H5Dclose");


        /* Open the second dataset (with array fields) */
        dataset = H5Dopen2(fid1, "Dataset2", H5P_DEFAULT);
        CHECK_I(dataset, "H5Dopen2");

        /* Get the datatype */
        tid1=H5Dget_type(dataset);
        CHECK_I(tid1, "H5Dget_type");

        /* Verify datatype class */
        mclass=H5Tget_class(tid1);
        VERIFY(mclass, H5T_COMPOUND, "H5Tget_class");

        /* Get the number of compound datatype fields */
        nmemb=H5Tget_nmembers(tid1);
        VERIFY(nmemb,4,"H5Tget_nmembers");

        /* Check the 1st field's name */
        mname=H5Tget_member_name(tid1,0);
        CHECK(mname, NULL, "H5Tget_member_name");
        if(mname && HDstrcmp(mname,"i")!=0)
            TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
        if(mname) free(mname);

        /* Check the 1st field's offset */
        off=H5Tget_member_offset(tid1,0);
        VERIFY(off, 0, "H5Tget_member_offset");

        /* Check the 1st field's datatype */
        mtid=H5Tget_member_type(tid1,0);
        CHECK(mtid, FAIL, "H5Tget_member_type");
        if((ret=H5Tequal(mtid,H5T_STD_I16LE))<=0)
            TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);
        ret=H5Tclose(mtid);
        CHECK(mtid, FAIL, "H5Tclose");

        /* Check the 2nd field's name */
        mname=H5Tget_member_name(tid1,1);
        CHECK(mname, NULL, "H5Tget_member_name");
        if(mname && HDstrcmp(mname,"f")!=0)
            TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
        if(mname) free(mname);

        /* Check the 2nd field's offset */
        off=H5Tget_member_offset(tid1,1);
        VERIFY(off, 4, "H5Tget_member_offset");

        /* Check the 2nd field's datatype */
        mtid=H5Tget_member_type(tid1,1);
        CHECK(mtid, FAIL, "H5Tget_member_type");

        /* Verify datatype class */
        mclass=H5Tget_class(mtid);
        VERIFY(mclass, H5T_ARRAY, "H5Tget_class");

        /* Check the array rank */
        ndims=H5Tget_array_ndims(mtid);
        VERIFY(ndims,ARRAY1_RANK,"H5Tget_array_ndims");

        /* Get the array dimensions */
        ret = H5Tget_array_dims2(mtid, rdims1);
        CHECK(ret, FAIL, "H5Tget_array_dims2");

        /* Check the array dimensions */
        for(i=0; i<ndims; i++)
            if(rdims1[i]!=tdims1[i]) {
                TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n",(int)i,(int)rdims1[i],(int)i,(int)tdims1[i]);
                continue;
            } /* end if */

        /* Check the array's base datatype */
        tid2=H5Tget_super(mtid);
        CHECK(tid2, FAIL, "H5Tget_super");

        if((ret=H5Tequal(tid2,H5T_IEEE_F32LE))<=0)
            TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);
        ret=H5Tclose(tid2);
        CHECK(ret, FAIL, "H5Tclose");
        ret=H5Tclose(mtid);
        CHECK(ret, FAIL, "H5Tclose");

        /* Check the 3rd field's name */
        mname=H5Tget_member_name(tid1,2);
        CHECK(mname, NULL, "H5Tget_member_name");
        if(mname && HDstrcmp(mname,"l")!=0)
            TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
        if(mname) free(mname);

        /* Check the 3rd field's offset */
        off=H5Tget_member_offset(tid1,2);
        VERIFY(off, 20, "H5Tget_member_offset");

        /* Check the 3rd field's datatype */
        mtid=H5Tget_member_type(tid1,2);
        CHECK(mtid, FAIL, "H5Tget_member_type");

        /* Verify datatype class */
        mclass=H5Tget_class(mtid);
        VERIFY(mclass, H5T_ARRAY, "H5Tget_class");

        /* Check the array rank */
        ndims=H5Tget_array_ndims(mtid);
        VERIFY(ndims,ARRAY1_RANK,"H5Tget_array_ndims");

        /* Get the array dimensions */
        ret = H5Tget_array_dims2(mtid, rdims1);
        CHECK(ret, FAIL, "H5Tget_array_dims2");

        /* Check the array dimensions */
        for(i=0; i<ndims; i++)
            if(rdims1[i]!=tdims1[i]) {
                TestErrPrintf("Array dimension information doesn't match!, rdims1[%d]=%d, tdims1[%d]=%d\n",(int)i,(int)rdims1[i],(int)i,(int)tdims1[i]);
                continue;
            } /* end if */

        /* Check the array's base datatype */
        tid2=H5Tget_super(mtid);
        CHECK(tid2, FAIL, "H5Tget_super");

        if((ret=H5Tequal(tid2,H5T_STD_I32LE))<=0)
            TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);
        ret=H5Tclose(tid2);
        CHECK(ret, FAIL, "H5Tclose");
        ret=H5Tclose(mtid);
        CHECK(ret, FAIL, "H5Tclose");

        /* Check the 4th field's name */
        mname=H5Tget_member_name(tid1,3);
        CHECK(mname, NULL, "H5Tget_member_name");
        if(mname && HDstrcmp(mname,"d")!=0)
            TestErrPrintf("Compound field name doesn't match!, mname=%s\n",mname);
        if(mname) free(mname);

        /* Check the 4th field's offset */
        off=H5Tget_member_offset(tid1,3);
        VERIFY(off, 36, "H5Tget_member_offset");

        /* Check the 4th field's datatype */
        mtid=H5Tget_member_type(tid1,3);
        CHECK(mtid, FAIL, "H5Tget_member_type");
        if((ret=H5Tequal(mtid,H5T_IEEE_F64LE))<=0)
            TestErrPrintf("Compound data type is incorrect!, ret=%d\n",(int)ret);
        ret=H5Tclose(mtid);
        CHECK(mtid, FAIL, "H5Tclose");

        /* Close the datatype */
        ret = H5Tclose(tid1);
        CHECK_I(ret, "H5Tclose");

        /* Close the dataset */
        ret = H5Dclose(dataset);
        CHECK_I(ret, "H5Dclose");

        /* Close the file */
        ret = H5Fclose(fid1);
        CHECK_I(ret, "H5Fclose");
    }
    else
        printf("***cannot open the pre-created compound datatype test file (%s)\n",testfile);

} /* end test_compat() */

/****************************************************************
**
**  test_array(): Main array datatype testing routine.
**
****************************************************************/
void
test_array(void)
{
    /* Output message about test being performed */
    MESSAGE(5, ("Testing Array Datatypes\n"));

    /* These tests use the same file... */
    test_array_atomic_1d();     /* Test 1-D array of atomic datatypes */
    test_array_atomic_3d();     /* Test 3-D array of atomic datatypes */
    test_array_array_atomic();  /* Test 1-D array of 2-D arrays of atomic datatypes */
    test_array_compound_atomic();   /* Test 1-D array of compound datatypes (with no array fields) */
    test_array_compound_array();    /* Test 1-D array of compound datatypes (with array fields) */
    test_array_vlen_atomic();   /* Test 1-D array of atomic VL datatypes */
    test_array_vlen_array();    /* Test 1-D array of 1-D array VL datatypes */
    test_array_funcs();         /* Test type functions with array types */

    test_array_bkg();           /* Read compound datatype with array fields and background fields read */

    /* This test uses a custom file */
    test_compat();              /* Test compatibility changes for compound datatype fields */
}   /* test_array() */


/*-------------------------------------------------------------------------
 * Function:	cleanup_array
 *
 * Purpose:	Cleanup temporary test files
 *
 * Return:	none
 *
 * Programmer:	Quincey Koziol
 *              June 8, 1999
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
void
cleanup_array(void)
{
    remove(FILENAME);
}