hdf5/test/tvltypes.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 COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/***********************************************************
*
* Test program:     tvltypes
*
* Test the Variable-Length Datatype functionality
*
*************************************************************/

#include "testhdf5.h"

#include "H5Dprivate.h"

#define FILENAME   "tvltypes.h5"

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

/* 1-D dataset with fixed dimensions */
#define SPACE3_RANK    1
#define SPACE3_DIM1     128
#define L1_INCM         16
#define L2_INCM         8
#define L3_INCM         3

/* 1-D dataset with fixed dimensions */
#define SPACE4_RANK    1
#define SPACE4_DIM_SMALL     128
#define SPACE4_DIM_LARGE     (H5D_TEMP_BUF_SIZE / 64)

void *test_vltypes_alloc_custom(size_t size, void *info);
void test_vltypes_free_custom(void *mem, void *info);

/****************************************************************
**
**  test_vltypes_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_vltypes_alloc_custom(size_t size, void *mem_used)
{
    void *ret_value;            /* Pointer to return */
    const size_t extra = MAX(sizeof(void *), sizeof(size_t)); /* Extra space needed */
                                /* (This weird contortion is required on the
                                 *      DEC Alpha to keep the alignment correct - QAK)
                                 */

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

    ret_value = ((unsigned char *)ret_value) + extra;

    return(ret_value);
}

/****************************************************************
**
**  test_vltypes_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_vltypes_free_custom(void *_mem, void *mem_used)
{
    if(_mem) {
        const size_t extra = MAX(sizeof(void *), sizeof(size_t));     /* Extra space needed */
                                                                /* (This weird contortion is required
                                                                 *      on the DEC Alpha to keep the
                                                                 *      alignment correct - QAK)
                                                                 */
        unsigned char *mem = ((unsigned char *)_mem) - extra;   /* Pointer to actual block allocated */

        *(size_t *)mem_used -= *(size_t *)mem;
        HDfree(mem);
    } /* end if */
}

/****************************************************************
**
**  test_vltypes_data_create(): Dataset of VL is supposed to
**      fail when fill value is never written to dataset.
**
****************************************************************/
static void
test_vltypes_dataset_create(void)
{
    hid_t               fid1;           /* HDF5 File IDs                */
    hid_t        dcpl;        /* Dataset Property list    */
    hid_t               dataset;        /* Dataset ID                   */
    hsize_t             dims1[] = {SPACE1_DIM1};
    hid_t               sid1;       /* Dataspace ID                     */
    hid_t               tid1;       /* Datatype ID                      */
    herr_t              ret;            /* Generic return value         */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Dataset of VL Datatype Functionality\n"));

    /* 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, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a datatype to refer to */
    tid1 = H5Tvlen_create(H5T_NATIVE_UINT);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* Create dataset property list */
    dcpl = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl, FAIL, "H5Pcreate");

    /* Set fill value writting time to be NEVER */
    ret = H5Pset_fill_time(dcpl, H5D_FILL_TIME_NEVER);
    CHECK(ret, FAIL, "H5Pset_fill_time");

    /* Create a dataset, supposed to fail */
    H5E_BEGIN_TRY {
        dataset = H5Dcreate2(fid1, "Dataset1", tid1, sid1, H5P_DEFAULT, dcpl, H5P_DEFAULT);
    } H5E_END_TRY;
    VERIFY(dataset, FAIL, "H5Dcreate2");

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

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

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

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

/****************************************************************
**
**  test_vltypes_funcs(): Test some type functions that are and
**      aren't supposed to work with VL type.
**
****************************************************************/
static void
test_vltypes_funcs(void)
{
    hid_t               type;       /* Datatype ID          */
    size_t              size;
    H5T_pad_t           inpad;
    H5T_norm_t          norm;
    H5T_cset_t          cset;
    H5T_str_t           strpad;
    herr_t              ret;        /* Generic return value */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing some type functions for VL\n"));

    /* Create a datatype to refer to */
    type = H5Tvlen_create (H5T_IEEE_F32BE);
    CHECK(type, FAIL, "H5Tvlen_create");

    size = H5Tget_precision(type);
    CHECK(size, 0, "H5Tget_precision");

    size = H5Tget_size(type);
    CHECK(size, 0, "H5Tget_size");

    size = H5Tget_ebias(type);
    CHECK(size, 0, "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");
}

/****************************************************************
**
**  test_vltypes_vlen_atomic(): Test basic VL datatype code.
**      Tests VL datatypes of atomic datatypes
**
****************************************************************/
static void
test_vltypes_vlen_atomic(void)
{
    hvl_t wdata[SPACE1_DIM1];   /* Information to write */
    hvl_t wdata2[SPACE1_DIM1];  /* Information to write */
    hvl_t rdata[SPACE1_DIM1];   /* Information read in */
    hvl_t fill;                 /* Fill value */
    hid_t fid1;        /* HDF5 File IDs        */
    hid_t dataset;    /* Dataset ID            */
    hid_t sid1;         /* Dataspace ID            */
    hid_t sid2;         /* ID of bad dataspace (no extent set) */
    hid_t tid1;         /* Datatype ID            */
    hid_t dcpl_pid;     /* Dataset creation property list ID */
    hid_t xfer_pid;     /* Dataset transfer property list ID */
    hsize_t dims1[] = {SPACE1_DIM1};
    hsize_t size;       /* Number of bytes which will be used */
    unsigned i,j;       /* counting variables */
    size_t mem_used=0;  /* Memory used during allocation */
    herr_t ret;        /* Generic return value        */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Basic Atomic VL Datatype Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i=0; i<SPACE1_DIM1; i++) {
        wdata[i].p=HDmalloc((i+1)*sizeof(unsigned int));
        wdata[i].len=i+1;
        for(j=0; j<(i+1); j++)
            ((unsigned int *)wdata[i].p)[j]=i*10+j;

        wdata2[i].p=NULL;
        wdata2[i].len=0;
    } /* 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, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a datatype to refer to */
    tid1 = H5Tvlen_create (H5T_NATIVE_UINT);
    CHECK(tid1, FAIL, "H5Tvlen_create");

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

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

    /* Check data read in */
    for(i = 0; i < SPACE1_DIM1; i++)
        if(rdata[i].len != 0 || rdata[i].p != NULL)
            TestErrPrintf("VL doesn't match!, rdata[%d].len=%u, rdata[%d].p=%p\n",(int)i,(unsigned)rdata[i].len,(int)i,rdata[i].p);

    /* Write "nil" data to disk */
    ret = H5Dwrite(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata2);
    CHECK(ret, FAIL, "H5Dwrite");

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

    /* Check data read in */
    for(i = 0; i < SPACE1_DIM1; i++)
        if(rdata[i].len != 0 || rdata[i].p != NULL)
            TestErrPrintf("VL doesn't match!, rdata[%d].len=%u, rdata[%d].p=%p\n",(int)i,(unsigned)rdata[i].len,(int)i,rdata[i].p);

    /* 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");

    /* Create second dataset, with fill value */
    dcpl_pid = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl_pid, FAIL, "H5Pcreate");

    /* Set the fill value for the second dataset */
    fill.p = NULL; fill.len = 0;
    ret = H5Pset_fill_value(dcpl_pid, tid1, &fill);
    CHECK(ret, FAIL, "H5Pset_fill_value");

    /* Create a second dataset */
    dataset = H5Dcreate2(fid1, "Dataset2", tid1, sid1, H5P_DEFAULT, dcpl_pid, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

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

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

    /* Check data read in */
    for(i = 0; i < SPACE1_DIM1; i++)
        if(rdata[i].len != 0 || rdata[i].p != NULL)
            TestErrPrintf("VL doesn't match!, rdata[%d].len=%u, rdata[%d].p=%p\n",(int)i,(unsigned)rdata[i].len,(int)i,rdata[i].p);

    /* Write "nil" data to disk */
    ret = H5Dwrite(dataset, tid1, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata2);
    CHECK(ret, FAIL, "H5Dwrite");

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

    /* Check data read in */
    for(i=0; i<SPACE1_DIM1; i++)
        if(rdata[i].len != 0 || rdata[i].p != NULL)
            TestErrPrintf("VL doesn't match!, rdata[%d].len=%u, rdata[%d].p=%p\n",(int)i,(unsigned)rdata[i].len,(int)i,rdata[i].p);

    /* Write data 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");


    /* Open the file for data checking */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

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

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

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

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_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");

    /* 10 elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    VERIFY(size,((SPACE1_DIM1 * (SPACE1_DIM1 + 1)) / 2) * 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 */
    /* 10 elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    VERIFY(mem_used,((SPACE1_DIM1*(SPACE1_DIM1+1))/2)*sizeof(unsigned int),"H5Dread");

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

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


    /* Open second dataset */
    dataset = H5Dopen2(fid1, "Dataset2", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

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

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

    /* Create a "bad" dataspace with no extent set */
    sid2 = H5Screate(H5S_SIMPLE);
    CHECK(sid2, FAIL, "H5Screate");

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_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");

    /* Try to call H5Dvlen_get_buf with bad dataspace */
    H5E_BEGIN_TRY {
        ret = H5Dvlen_get_buf_size(dataset, tid1, sid2, &size);
    } H5E_END_TRY
    VERIFY(ret, FAIL, "H5Dvlen_get_buf_size");

    /* 10 elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    VERIFY(size,((SPACE1_DIM1*(SPACE1_DIM1+1))/2)*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 */
    /* 10 elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    VERIFY(mem_used,((SPACE1_DIM1*(SPACE1_DIM1+1))/2)*sizeof(unsigned int),"H5Dread");

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

    /* Try to reclaim read data using "bad" dataspace with no extent
     * Should fail */
    H5E_BEGIN_TRY {
        ret=H5Dvlen_reclaim(tid1,sid2,xfer_pid,rdata);
    } H5E_END_TRY
    VERIFY(ret, FAIL, "H5Dvlen_reclaim");

    /* 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");

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

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

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

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

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

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

} /* end test_vltypes_vlen_atomic() */

/****************************************************************
**
**  rewrite_vltypes_vlen_atomic(): check memory leak for basic VL datatype.
**      Check memory leak for VL datatypes of atomic datatypes
**
****************************************************************/
static void
rewrite_vltypes_vlen_atomic(void)
{
    hvl_t wdata[SPACE1_DIM1];   /* Information to write */
    hvl_t rdata[SPACE1_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                      */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t     size;       /* Number of bytes which will be used */
    unsigned       i,j;        /* counting variables */
    size_t         mem_used=0; /* Memory used during allocation */
    unsigned    increment=4;
    herr_t              ret;            /* Generic return value         */

    /* Output message about test being performed */
    MESSAGE(5, ("Check Memory Leak for Basic Atomic VL Datatype Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i = 0; i < SPACE1_DIM1; i++) {
        wdata[i].p = HDmalloc((i + increment) * sizeof(unsigned int));
        wdata[i].len = i + increment;
        for(j = 0; j < (i + increment); j++)
            ((unsigned int *)wdata[i].p)[j] = i * 20 + j;
    } /* end for */

    /* Open file created in test_vltypes_vlen_atomic() */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

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

    /* Open dataspace for dataset */
    sid1 = H5Dget_space(dataset);
    CHECK(sid1, FAIL, "H5Dget_space");

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

    /* 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");


    /* Open the file for data checking */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

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

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

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

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_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");

    /* 22 elements allocated = 4+5+6+7 elements for each array position */
    VERIFY(size, 22 * 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 */
    /* 22 elements allocated = 4+5+6+7 elements for each array position */
    VERIFY(mem_used, 22 * sizeof(unsigned int), "H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata[i].len!=rdata[i].len) {
            TestErrPrintf("%d: VL data lengths don't match!, wdata[%d].len=%d, rdata[%d].len=%d\n",__LINE__,(int)i,(int)wdata[i].len,(int)i,(int)rdata[i].len);
            continue;
        } /* end if */
        for(j=0; j<rdata[i].len; j++) {
            if( ((unsigned int *)wdata[i].p)[j] != ((unsigned int *)rdata[i].p)[j] ) {
                TestErrPrintf("VL data values don't match!, wdata[%d].p[%d]=%d, rdata[%d].p[%d]=%d\n",(int)i,(int)j, (int)((unsigned int *)wdata[i].p)[j], (int)i,(int)j, (int)((unsigned int *)rdata[i].p)[j]);
                continue;
            } /* end if */
        } /* 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 */
    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 dataset transfer property list */
    ret = H5Pclose(xfer_pid);
    CHECK(ret, FAIL, "H5Pclose");

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

} /* end rewrite_vltypes_vlen_atomic() */



/****************************************************************
**
**  test_vltypes_vlen_compound(): Test basic VL datatype code.
**      Test VL datatypes of compound datatypes
**
****************************************************************/
static void
test_vltypes_vlen_compound(void)
{
    typedef struct {             /* Struct that the VL sequences are composed of */
        int i;
        float f;
    } s1;
    hvl_t wdata[SPACE1_DIM1];   /* Information to write */
    hvl_t rdata[SPACE1_DIM1];   /* Information read in */
    hid_t        fid1;        /* HDF5 File IDs        */
    hid_t        dataset;    /* Dataset ID            */
    hid_t        sid1;       /* Dataspace ID            */
    hid_t        tid1, tid2; /* Datatype IDs         */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t        dims1[] = {SPACE1_DIM1};
    hsize_t     size;       /* Number of bytes which will be used */
    unsigned       i,j;        /* counting variables */
    size_t         mem_used=0; /* Memory used during allocation */
    herr_t        ret;        /* Generic return value        */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Basic Compound VL Datatype Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i=0; i<SPACE1_DIM1; i++) {
        wdata[i].p=HDmalloc((i+1)*sizeof(s1));
        wdata[i].len=i+1;
        for(j=0; j<(i+1); j++) {
            ((s1 *)wdata[i].p)[j].i = (int)(i * 10 + j);
            ((s1 *)wdata[i].p)[j].f = (float)(i * 20 + j) / 3.0F;
          } /* end for */
    } /* 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, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create the base compound type */
    tid2 = H5Tcreate(H5T_COMPOUND, sizeof(s1));
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Insert fields */
    ret = H5Tinsert(tid2, "i", HOFFSET(s1, i), H5T_NATIVE_INT);
    CHECK(ret, FAIL, "H5Tinsert");
    ret = H5Tinsert(tid2, "f", HOFFSET(s1, f), H5T_NATIVE_FLOAT);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Create a datatype to refer to */
    tid1 = H5Tvlen_create(tid2);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* 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");

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_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");

    /* 10 elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    VERIFY(size, ((SPACE1_DIM1 * (SPACE1_DIM1 + 1)) / 2) * sizeof(s1), "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 */
    /* 10 elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    VERIFY(mem_used,((SPACE1_DIM1*(SPACE1_DIM1+1))/2)*sizeof(s1),"H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata[i].len!=rdata[i].len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].len=%d, rdata[%d].len=%d\n",__LINE__,(int)i,(int)wdata[i].len,(int)i,(int)rdata[i].len);
            continue;
        } /* end if */
        for(j=0; j<rdata[i].len; j++) {
            if(((s1 *)wdata[i].p)[j].i != ((s1 *)rdata[i].p)[j].i ) {
                TestErrPrintf("VL data values don't match!, wdata[%d].p[%d].i=%d, rdata[%d].p[%d].i=%d\n",(int)i,(int)j, (int)((s1 *)wdata[i].p)[j].i, (int)i,(int)j, (int)((s1 *)rdata[i].p)[j].i);
                continue;
            } /* end if */
            if(!H5_FLT_ABS_EQUAL(((s1 *)wdata[i].p)[j].f,((s1 *)rdata[i].p)[j].f)) {
                TestErrPrintf("VL data values don't match!, wdata[%d].p[%d].f=%f, rdata[%d].p[%d].f=%f\n",(int)i,(int)j, (double)((s1 *)wdata[i].p)[j].f, (int)i,(int)j, (double)((s1 *)rdata[i].p)[j].f);
                continue;
            } /* end if */
        } /* end for */
    } /* end for */

    /* Reclaim the 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 */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

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

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

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

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

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

} /* end test_vltypes_vlen_compound() */

/****************************************************************
**
**  rewrite_vltypes_vlen_compound(): Check memory leak for basic VL datatype.
**      Checks memory leak for VL datatypes of compound datatypes
**
****************************************************************/
static void
rewrite_vltypes_vlen_compound(void)
{
    typedef struct {    /* Struct that the VL sequences are composed of */
        int i;
        float f;
    } s1;
    hvl_t wdata[SPACE1_DIM1];   /* Information to write */
    hvl_t rdata[SPACE1_DIM1];   /* Information read in */
    hid_t               fid1;           /* HDF5 File IDs                */
    hid_t               dataset;        /* Dataset ID                   */
    hid_t               sid1;       /* Dataspace ID                     */
    hid_t               tid1, tid2; /* Datatype IDs         */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t     size;       /* Number of bytes which will be used */
    unsigned       i,j;        /* counting variables */
    size_t         mem_used=0; /* Memory used during allocation */
    unsigned     increment=4;
    herr_t              ret;            /* Generic return value         */

    /* Output message about test being performed */
    MESSAGE(5, ("Check Memory Leak for Basic Compound VL Datatype Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i = 0; i < SPACE1_DIM1; i++) {
        wdata[i].p = HDmalloc((i + increment) * sizeof(s1));
        wdata[i].len = i + increment;
        for(j = 0; j < (i + increment); j++) {
            ((s1 *)wdata[i].p)[j].i = (int)(i * 40 + j);
            ((s1 *)wdata[i].p)[j].f = (float)(i * 60 + j) / 3.0F;
          } /* end for */
    } /* end for */

    /* Create file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

    /* Create the base compound type */
    tid2 = H5Tcreate(H5T_COMPOUND, sizeof(s1));
    CHECK(tid2, FAIL, "H5Tcreate");

    ret = H5Tinsert(tid2, "i", HOFFSET(s1, i), H5T_NATIVE_INT);
    CHECK(ret, FAIL, "H5Tinsert");
    ret = H5Tinsert(tid2, "f", HOFFSET(s1, f), H5T_NATIVE_FLOAT);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Create a datatype to refer to */
    tid1 = H5Tvlen_create (tid2);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* Create a dataset */
    dataset = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Create dataspace for datasets */
    sid1 = H5Dget_space(dataset);
    CHECK(sid1, FAIL, "H5Dget_space");

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

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_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");

    /* 22 elements allocated = 4 + 5 + 6 + 7 elements for each array position */
    VERIFY(size, 22 * sizeof(s1), "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 */
    /* 22 elements allocated = 4 + 5 + 6 + 7 elements for each array position */
    VERIFY(mem_used,22*sizeof(s1),"H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata[i].len!=rdata[i].len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].len=%d, rdata[%d].len=%d\n",__LINE__,(int)i,(int)wdata[i].len,(int)i,(int)rdata[i].len);
            continue;
        } /* end if */
        for(j=0; j<rdata[i].len; j++) {
            if( ((s1 *)wdata[i].p)[j].i != ((s1 *)rdata[i].p)[j].i ) {
                TestErrPrintf("VL data values don't match!, wdata[%d].p[%d].i=%d, rdata[%d].p[%d].i=%d\n",(int)i,(int)j, (int)((s1 *)wdata[i].p)[j].i, (int)i,(int)j, (int)((s1 *)rdata[i].p)[j].i);
                continue;
            } /* end if */
            if(!H5_FLT_ABS_EQUAL(((s1 *)wdata[i].p)[j].f,((s1 *)rdata[i].p)[j].f)) {
                TestErrPrintf("VL data values don't match!, wdata[%d].p[%d].f=%f, rdata[%d].p[%d].f=%f\n",(int)i,(int)j, (double)((s1 *)wdata[i].p)[j].f, (int)i,(int)j, (double)((s1 *)rdata[i].p)[j].f);
                continue;
            } /* end if */
        } /* end for */
    } /* end for */

    /* Reclaim the 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 */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

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

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

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

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

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

} /* end rewrite_vltypes_vlen_compound() */

/****************************************************************
**
**  test_vltypes_compound_vlen_vlen(): Test basic VL datatype code.
**      Tests compound datatypes with VL datatypes of VL datatypes.
**
****************************************************************/
static void
test_vltypes_compound_vlen_vlen(void)
{
    typedef struct {                    /* Struct that the compound type are composed of */
        int i;
        float f;
        hvl_t v;
    } s1;
    s1          *wdata;                 /* data to write */
    s1          *rdata;                 /* data to read */
    hid_t    fid1;                /* HDF5 File IDs        */
    hid_t    dataset;            /* Dataset ID            */
    hid_t    sid1;                   /* Dataspace ID            */
    hid_t    tid1, tid2, tid3;       /* Datatype IDs         */
    hsize_t    dims1[] = {SPACE3_DIM1};
    unsigned    i,j,k;                  /* counting variables */
    hvl_t       *t1, *t2;               /* Temporary pointer to VL information */
    herr_t    ret;                /* Generic return value        */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Compound Datatypes with VL Atomic Datatype Component Functionality\n"));

    /* Allocate and initialize VL data to write */
    wdata = (s1 *)HDmalloc(sizeof(s1) * SPACE3_DIM1);
    CHECK_PTR(wdata, "HDmalloc");
    rdata = (s1 *)HDmalloc(sizeof(s1) * SPACE3_DIM1);
    CHECK_PTR(rdata, "HDmalloc");
    for(i = 0; i < SPACE3_DIM1; i++) {
        wdata[i].i = (int)(i * 10);
        wdata[i].f = (float)(i * 20) / 3.0F;
        wdata[i].v.p = HDmalloc((i + L1_INCM) * sizeof(hvl_t));
        wdata[i].v.len = i + L1_INCM;
        for(t1 = (hvl_t *)((wdata[i].v).p), j = 0; j < (i + L1_INCM); j++, t1++) {
            t1->p = HDmalloc((j + L2_INCM) * sizeof(unsigned int));
            t1->len = j + L2_INCM;
            for(k = 0; k < j + L2_INCM; k++)
                ((unsigned int*)t1->p)[k] = i * 100 + j * 10 + k;
        } /* end for */
    } /* 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(SPACE3_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a VL datatype to refer to */
    tid3 = H5Tvlen_create (H5T_NATIVE_UINT);
    CHECK(tid3, FAIL, "H5Tvlen_create");

    /* Create a VL datatype to refer to */
    tid1 = H5Tvlen_create (tid3);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* Create the base compound type */
    tid2 = H5Tcreate(H5T_COMPOUND, sizeof(s1));
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Insert fields */
    ret = H5Tinsert(tid2, "i", HOFFSET(s1, i), H5T_NATIVE_INT);
    CHECK(ret, FAIL, "H5Tinsert");
    ret = H5Tinsert(tid2, "f", HOFFSET(s1, f), H5T_NATIVE_FLOAT);
    CHECK(ret, FAIL, "H5Tinsert");
    ret = H5Tinsert(tid2, "v", HOFFSET(s1, v), tid1);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid2, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

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

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


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

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

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read in */
    for(i = 0; i < SPACE3_DIM1; i++) {
        if(wdata[i].i != rdata[i].i) {
            TestErrPrintf("Integer components don't match!, wdata[%d].i=%d, rdata[%d].i=%d\n",(int)i,(int)wdata[i].i,(int)i,(int)rdata[i].i);
            continue;
        } /* end if */
        if(!H5_FLT_ABS_EQUAL(wdata[i].f,rdata[i].f)) {
            TestErrPrintf("Float components don't match!, wdata[%d].f=%f, rdata[%d].f=%f\n",(int)i,(double)wdata[i].f,(int)i,(double)rdata[i].f);
            continue;
        } /* end if */

        if(wdata[i].v.len != rdata[i].v.len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].v.len=%d, rdata[%d].v.len=%d\n",__LINE__,(int)i,(int)wdata[i].v.len,(int)i,(int)rdata[i].v.len);
            continue;
        } /* end if */

        for(t1=(hvl_t *)(wdata[i].v.p), t2=(hvl_t *)(rdata[i].v.p), j=0; j<rdata[i].v.len; j++, t1++, t2++) {
            if(t1->len != t2->len) {
                TestErrPrintf("%d: VL data length don't match!, i=%d, j=%d, t1->len=%d, t2->len=%d\n",__LINE__,(int)i,(int)j,(int)t1->len,(int)t2->len);
                continue;
            } /* end if */
            for(k=0; k<t2->len; k++) {
                if( ((unsigned int *)t1->p)[k] != ((unsigned int *)t2->p)[k] ) {
                    TestErrPrintf("VL data values don't match!, t1->p[%d]=%d, t2->p[%d]=%d\n",(int)k, (int)((unsigned int *)t1->p)[k], (int)k, (int)((unsigned int *)t2->p)[k]);
                    continue;
                } /* end if */
            } /* end for */
        } /* end for */
    } /* end for */

    /* Reclaim the VL data */
    ret=H5Dvlen_reclaim(tid2,sid1,H5P_DEFAULT,rdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    /* Reclaim the write VL data */
    ret=H5Dvlen_reclaim(tid2,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

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

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

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

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

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

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

    /* Release buffers */
    HDfree(wdata);
    HDfree(rdata);
} /* end test_vltypes_compound_vlen_vlen() */

/****************************************************************
**
**  test_vltypes_compound_vlstr(): Test VL datatype code.
**      Tests VL datatypes of compound datatypes with VL string.
**      Dataset is extensible chunked, and data is rewritten with
**      shorter VL data.
**
****************************************************************/
static void
test_vltypes_compound_vlstr(void)
{
    typedef enum {
        red,
        blue,
        green
    } e1;
    typedef struct {
        char *string;
        e1   color;
    } s2;
    typedef struct {                    /* Struct that the compound type are composed of */
        hvl_t v;
    } s1;
    s1 wdata[SPACE1_DIM1];              /* data to write */
    s1 wdata2[SPACE1_DIM1];             /* data to write */
    s1 rdata[SPACE1_DIM1];              /* data to read */
    s1 rdata2[SPACE1_DIM1];              /* data to read */
    char    str[64] = "a\0";
    hid_t    fid1;                /* HDF5 File IDs        */
    hid_t    dataset, dset2;            /* Dataset ID            */
    hid_t    sid1, sid2, filespace, filespace2;  /* Dataspace ID    */
    hid_t    tid1, tid2, tid3, tid4, tid5;       /* Datatype IDs     */
    hid_t    cparms;
    hsize_t    dims1[] = {SPACE1_DIM1};
    hsize_t    chunk_dims[] = {SPACE1_DIM1/2};
    hsize_t    maxdims[] = {H5S_UNLIMITED};
    hsize_t    size[] = {SPACE1_DIM1};
    hsize_t    offset[] = {0};
    unsigned    i,j;                    /* counting variables */
    s2          *t1, *t2;               /* Temporary pointer to VL information */
    int        val;
    herr_t    ret;                /* Generic return value        */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing VL Datatype of Compound Datatype with VL String Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i=0; i<SPACE1_DIM1; i++) {
        wdata[i].v.p=(s2*)HDmalloc((i+L3_INCM)*sizeof(s2));
        wdata[i].v.len=i+L3_INCM;
        for(t1=(s2 *)((wdata[i].v).p), j=0; j<(i+L3_INCM); j++, t1++) {
            HDstrcat(str, "m");
            t1->string = (char*)HDmalloc(HDstrlen(str)*sizeof(char)+1);
            HDstrcpy(t1->string, str);
            /*t1->color = red;*/
            t1->color = blue;
        }
    } /* 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, dims1, maxdims);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a VL string type*/
    tid4 = H5Tcopy (H5T_C_S1);
    CHECK(tid4, FAIL, "H5Tcopy");
    ret = H5Tset_size (tid4,H5T_VARIABLE);
    CHECK(ret, FAIL, "H5Tset_size");

    /* Create an enum type */
    tid3 = H5Tenum_create(H5T_STD_I32LE);
    val = 0;
    ret = H5Tenum_insert(tid3, "RED", &val);
    CHECK(ret, FAIL, "H5Tenum_insert");
    val = 1;
    ret = H5Tenum_insert(tid3, "BLUE", &val);
    CHECK(ret, FAIL, "H5Tenum_insert");
    val = 2;
    ret = H5Tenum_insert(tid3, "GREEN", &val);
    CHECK(ret, FAIL, "H5Tenum_insert");

    /* Create the first layer compound type */
    tid5 = H5Tcreate(H5T_COMPOUND, sizeof(s2));
    CHECK(tid5, FAIL, "H5Tcreate");
    /* Insert fields */
    ret=H5Tinsert(tid5, "string", HOFFSET(s2, string), tid4);
    CHECK(ret, FAIL, "H5Tinsert");
    /* Insert fields */
    ret=H5Tinsert(tid5, "enumerate", HOFFSET(s2, color), tid3);
    CHECK(ret, FAIL, "H5Tinsert");


    /* Create a VL datatype of first layer compound type */
    tid1 = H5Tvlen_create(tid5);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* Create the base compound type */
    tid2 = H5Tcreate(H5T_COMPOUND, sizeof(s1));
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Insert fields */
    ret = H5Tinsert(tid2, "v", HOFFSET(s1, v), tid1);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Modify dataset creation properties, i.e. enable chunking  */
    cparms = H5Pcreate(H5P_DATASET_CREATE);
    ret = H5Pset_chunk(cparms, SPACE1_RANK, chunk_dims);
    CHECK(ret, FAIL, "H5Pset_chunk");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid2, sid1, H5P_DEFAULT, cparms, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Extend the dataset. This call assures that dataset is 4.*/
    ret = H5Dset_extent(dataset, size);
    CHECK(ret, FAIL, "H5Dset_extent");

    /* Select a hyperslab  */
    filespace = H5Dget_space(dataset);
    ret = H5Sselect_hyperslab(filespace, H5S_SELECT_SET, offset, NULL, dims1, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid2, sid1, filespace, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    ret = H5Fflush(fid1, H5F_SCOPE_GLOBAL);
    CHECK(ret, FAIL, "H5Fflush");

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

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

    /* Close datatype */
    ret = H5Tclose(tid4);
    CHECK(ret, FAIL, "H5Tclose");

    /* Close datatype */
    ret = H5Tclose(tid5);
    CHECK(ret, FAIL, "H5Tclose");

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

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

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

    /* Close Property list */
    ret = H5Pclose(cparms);
    CHECK(ret, FAIL, "H5Pclose");

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


    /* Open file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

    /* Open the dataset */
    dset2 = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
    CHECK(dset2, FAIL, "H5Dopen2");

    /* Get the data type */
    tid2 = H5Dget_type(dset2);
    CHECK(tid2, FAIL, "H5Dget_type");

    /* Read dataset from disk */
    ret = H5Dread(dset2, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
    CHECK(ret, FAIL, "H5Dread");

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

        for(t1=(s2 *)(wdata[i].v.p), t2=(s2 *)(rdata[i].v.p), j=0; j<rdata[i].v.len; j++, t1++, t2++) {
                if( HDstrcmp(t1->string, t2->string) ) {
                    TestErrPrintf("VL data values don't match!, t1->string=%s, t2->string=%s\n",t1->string, t2->string);
                    continue;
                } /* end if */
                if(t1->color != t2->color) {
                    TestErrPrintf("VL data values don't match!, t1->color=%d, t2->color=%d\n",t1->color, t2->color);
                    continue;
                } /* end if */
        } /* end for */
    } /* end for */

    /* Reclaim the VL data */
    ret=H5Dvlen_reclaim(tid2,sid1,H5P_DEFAULT,rdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    /* Reclaim the write VL data */
    ret=H5Dvlen_reclaim(tid2,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    /* Use this part for new data */
    HDstrcpy(str, "bbbbbbbb\0");
    for(i=0; i<SPACE1_DIM1; i++) {
        wdata2[i].v.p=(s2*)HDmalloc((i+1)*sizeof(s2));
        wdata2[i].v.len=i+1;
        for(t1=(s2*)(wdata2[i].v).p, j=0; j<i+1; j++, t1++) {
        HDstrcat(str, "pp");
        t1->string = (char*)HDmalloc(HDstrlen(str)*sizeof(char)+1);
            HDstrcpy(t1->string, str);
        t1->color = green;
        }
    } /* end for */

    /* Select a hyperslab  */
    filespace2 = H5Dget_space (dset2);
    ret = H5Sselect_hyperslab (filespace2, H5S_SELECT_SET, offset, NULL,
                                  dims1, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create dataspace for datasets */
    sid2 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Write dataset to disk */
    ret=H5Dwrite(dset2,tid2,sid2,filespace2,H5P_DEFAULT, &wdata2);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read dataset from disk */
    ret=H5Dread(dset2,tid2,H5S_ALL,H5S_ALL,H5P_DEFAULT,rdata2);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata2[i].v.len!=rdata2[i].v.len) {
            TestErrPrintf("%d: VL data length don't match!, wdata2[%d].v.len=%d, rdata2[%d].v.len=%d\n",__LINE__,(int)i,(int)wdata2[i].v.len,(int)i,(int)rdata2[i].v.len);
            continue;
        } /* end if */

        for(t1=(s2 *)(wdata2[i].v.p), t2=(s2 *)(rdata2[i].v.p), j=0; j<rdata2[i].v.len; j++, t1++, t2++) {
                if( HDstrcmp(t1->string, t2->string) ) {
                    TestErrPrintf("VL data values don't match!, t1->string=%s, t2->string=%s\n",t1->string, t2->string);
                    continue;
                } /* end if */
                if(t1->color != t2->color) {
                    TestErrPrintf("VL data values don't match!, t1->color=%d, t2->color=%d\n",t1->color, t2->color);
                    continue;
                } /* end if */
        } /* end for */
    } /* end for */

    /* Reclaim the write VL data */
    ret=H5Dvlen_reclaim(tid2,sid1,H5P_DEFAULT,wdata2);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    /* Reclaim the VL data */
    ret=H5Dvlen_reclaim(tid2,sid1,H5P_DEFAULT,rdata2);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

    ret = H5Dclose(dset2);
    CHECK(ret, FAIL, "H5Dclose");

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

    /* Close disk dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(filespace2);
    CHECK(ret, FAIL, "H5Sclose");

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

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

/****************************************************************
**
**  test_vltypes_compound_vlen_atomic(): Test basic VL datatype code.
**      Tests compound datatypes with VL datatypes of atomic datatypes.
**
****************************************************************/
static void
test_vltypes_compound_vlen_atomic(void)
{
    typedef struct {             /* Struct that the VL sequences are composed of */
        int i;
        float f;
        hvl_t v;
    } s1;
    s1 wdata[SPACE1_DIM1];   /* Information to write */
    s1 rdata[SPACE1_DIM1];   /* Information read in */
    s1 fill;                    /* Fill value */
    hid_t        fid1;        /* HDF5 File IDs        */
    hid_t        dataset;    /* Dataset ID            */
    hid_t        sid1;       /* Dataspace ID            */
    hid_t        tid1, tid2; /* Datatype IDs         */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hid_t       dcpl_pid;   /* Dataset creation property list ID */
    hsize_t        dims1[] = {SPACE1_DIM1};
    hsize_t     size;       /* Number of bytes which will be used */
    unsigned       i,j;        /* counting variables */
    size_t         mem_used=0; /* Memory used during allocation */
    herr_t        ret;        /* Generic return value        */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Compound Datatypes with VL Atomic Datatype Component Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i = 0; i < SPACE1_DIM1; i++) {
        wdata[i].i = (int)(i * 10);
        wdata[i].f = (float)(i * 20) / 3.0F;
        wdata[i].v.p = HDmalloc((i + 1)*sizeof(unsigned int));
        wdata[i].v.len = i + 1;
        for(j = 0; j < (i + 1); j++)
            ((unsigned int *)wdata[i].v.p)[j] = i * 10 + 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, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a VL datatype to refer to */
    tid1 = H5Tvlen_create (H5T_NATIVE_UINT);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* Create the base compound type */
    tid2 = H5Tcreate(H5T_COMPOUND, sizeof(s1));
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Insert fields */
    ret = H5Tinsert(tid2, "i", HOFFSET(s1, i), H5T_NATIVE_INT);
    CHECK(ret, FAIL, "H5Tinsert");
    ret = H5Tinsert(tid2, "f", HOFFSET(s1, f), H5T_NATIVE_FLOAT);
    CHECK(ret, FAIL, "H5Tinsert");
    ret = H5Tinsert(tid2, "v", HOFFSET(s1, v), tid1);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid2, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_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, tid2, sid1, &size);
    CHECK(ret, FAIL, "H5Dvlen_get_buf_size");

    /* 10 elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    VERIFY(size, ((SPACE1_DIM1 * (SPACE1_DIM1 + 1)) / 2) * sizeof(unsigned int), "H5Dvlen_get_buf_size");

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid2, H5S_ALL, H5S_ALL, xfer_pid, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Make certain the correct amount of memory has been used */
    /* 10 elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    VERIFY(mem_used,((SPACE1_DIM1*(SPACE1_DIM1+1))/2)*sizeof(unsigned int),"H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata[i].i!=rdata[i].i) {
            TestErrPrintf("Integer components don't match!, wdata[%d].i=%d, rdata[%d].i=%d\n",(int)i,(int)wdata[i].i,(int)i,(int)rdata[i].i);
            continue;
        } /* end if */
        if(!H5_FLT_ABS_EQUAL(wdata[i].f,rdata[i].f)) {
            TestErrPrintf("Float components don't match!, wdata[%d].f=%f, rdata[%d].f=%f\n",(int)i,(double)wdata[i].f,(int)i,(double)rdata[i].f);
            continue;
        } /* end if */
        if(wdata[i].v.len!=rdata[i].v.len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].v.len=%d, rdata[%d].v.len=%d\n",__LINE__,(int)i,(int)wdata[i].v.len,(int)i,(int)rdata[i].v.len);
            continue;
        } /* end if */
        for(j=0; j<rdata[i].v.len; j++) {
            if( ((unsigned int *)wdata[i].v.p)[j] != ((unsigned int *)rdata[i].v.p)[j] ) {
                TestErrPrintf("VL data values don't match!, wdata[%d].v.p[%d]=%d, rdata[%d].v.p[%d]=%d\n",(int)i,(int)j, (int)((unsigned int *)wdata[i].v.p)[j], (int)i,(int)j, (int)((unsigned int *)rdata[i].v.p)[j]);
                continue;
            } /* end if */
        } /* end for */
    } /* end for */

    /* Reclaim the VL data */
    ret = H5Dvlen_reclaim(tid2, sid1, xfer_pid, rdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

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

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

    /* Create a second dataset, with a fill value */
    dcpl_pid = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl_pid, FAIL, "H5Pcreate");

    /* Set the fill value for the second dataset */
    HDmemset(&fill, 0, sizeof(s1));
    ret = H5Pset_fill_value(dcpl_pid, tid2, &fill);
    CHECK(ret, FAIL, "H5Pset_fill_value");

    dataset = H5Dcreate2(fid1, "Dataset2", tid2, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

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

    /* Read from dataset before writing data */
    ret = H5Dread(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Check data read in */
    for(i = 0; i < SPACE1_DIM1; i++)
        if(rdata[i].i != 0 || !H5_FLT_ABS_EQUAL(rdata[i].f, 0.0F) || rdata[i].v.len != 0 || rdata[i].v.p != NULL)
            TestErrPrintf("VL doesn't match!, rdata[%d].i=%d, rdata[%d].f=%f, rdata[%d].v.len=%u, rdata[%d].v.p=%p\n",(int)i,rdata[i].i,(int)i,(double)rdata[i].f,(int)i,(unsigned)rdata[i].v.len,(int)i,rdata[i].v.p);

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read in */
    for(i = 0; i < SPACE1_DIM1; i++) {
        if(wdata[i].i != rdata[i].i) {
            TestErrPrintf("Integer components don't match!, wdata[%d].i=%d, rdata[%d].i=%d\n",(int)i,(int)wdata[i].i,(int)i,(int)rdata[i].i);
            continue;
        } /* end if */
        if(!H5_FLT_ABS_EQUAL(wdata[i].f,rdata[i].f)) {
            TestErrPrintf("Float components don't match!, wdata[%d].f=%f, rdata[%d].f=%f\n",(int)i,(double)wdata[i].f,(int)i,(double)rdata[i].f);
            continue;
        } /* end if */
        if(wdata[i].v.len!=rdata[i].v.len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].v.len=%d, rdata[%d].v.len=%d\n",__LINE__,(int)i,(int)wdata[i].v.len,(int)i,(int)rdata[i].v.len);
            continue;
        } /* end if */
        for(j=0; j<rdata[i].v.len; j++) {
            if( ((unsigned int *)wdata[i].v.p)[j] != ((unsigned int *)rdata[i].v.p)[j] ) {
                TestErrPrintf("VL data values don't match!, wdata[%d].v.p[%d]=%d, rdata[%d].v.p[%d]=%d\n",(int)i,(int)j, (int)((unsigned int *)wdata[i].v.p)[j], (int)i,(int)j, (int)((unsigned int *)rdata[i].v.p)[j]);
                continue;
            } /* end if */
        } /* end for */
    } /* end for */

    /* Reclaim the VL data */
    ret=H5Dvlen_reclaim(tid2,sid1,H5P_DEFAULT,rdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

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

    /* Reclaim the write VL data */
    ret=H5Dvlen_reclaim(tid2,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

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

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

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

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

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

} /* end test_vltypes_compound_vlen_atomic() */

/****************************************************************
**
**  rewrite_vltypes_compound_vlen_atomic(): Check memory leak for
**    basic VL datatype code.
**      Check memory leak for compound datatypes with VL datatypes
**    of atomic datatypes.
**
****************************************************************/
static void
rewrite_vltypes_compound_vlen_atomic(void)
{
    typedef struct {    /* Struct that the VL sequences are composed of */
        int i;
        float f;
        hvl_t v;
    } s1;
    s1 wdata[SPACE1_DIM1];   /* Information to write */
    s1 rdata[SPACE1_DIM1];   /* Information read in */
    hid_t               fid1;           /* HDF5 File IDs                */
    hid_t               dataset;        /* Dataset ID                   */
    hid_t               sid1;       /* Dataspace ID                     */
    hid_t               tid1, tid2; /* Datatype IDs         */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t     size;       /* Number of bytes which will be used */
    unsigned       i,j;        /* counting variables */
    size_t         mem_used=0; /* Memory used during allocation */
    unsigned        increment=4;
    herr_t              ret;            /* Generic return value         */

    /* Output message about test being performed */
    MESSAGE(5, ("Checking memory leak for compound datatype with VL Atomic Datatype Component Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i = 0; i < SPACE1_DIM1; i++) {
        wdata[i].i = (int)(i * 40);
        wdata[i].f = (float)(i * 50) / 3.0F;
        wdata[i].v.p = HDmalloc((i + increment) * sizeof(unsigned int));
        wdata[i].v.len = i + increment;
        for(j = 0; j < (i + increment); j++)
            ((unsigned int *)wdata[i].v.p)[j] = i * 60 + j;
    } /* end for */

    /* Create file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

    /* Create a VL datatype to refer to */
    tid1 = H5Tvlen_create(H5T_NATIVE_UINT);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* Create the base compound type */
    tid2 = H5Tcreate(H5T_COMPOUND, sizeof(s1));
    CHECK(tid2, FAIL, "H5Tcreate");

    /* Insert fields */
    ret = H5Tinsert(tid2, "i", HOFFSET(s1, i), H5T_NATIVE_INT);
    CHECK(ret, FAIL, "H5Tinsert");
    ret = H5Tinsert(tid2, "f", HOFFSET(s1, f), H5T_NATIVE_FLOAT);
    CHECK(ret, FAIL, "H5Tinsert");
    ret = H5Tinsert(tid2, "v", HOFFSET(s1, v), tid1);
    CHECK(ret, FAIL, "H5Tinsert");

    /* Create a dataset */
    dataset = H5Dopen2(fid1, "Dataset1", H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Create dataspace for datasets */
    sid1 = H5Dget_space(dataset);
    CHECK(sid1, FAIL, "H5Dget_space");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_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, tid2, sid1, &size);
    CHECK(ret, FAIL, "H5Dvlen_get_buf_size");

    /* 22 elements allocated = 4+5+6+7 elements for each array position */
    VERIFY(size, 22*sizeof(unsigned int),"H5Dvlen_get_buf_size");

    /* Read dataset from disk */
    ret=H5Dread(dataset,tid2,H5S_ALL,H5S_ALL,xfer_pid,rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Make certain the correct amount of memory has been used */
    /* 22 elements allocated = 4+5+6+7 elements for each array position */
    VERIFY(mem_used,22*sizeof(unsigned int),"H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata[i].i!=rdata[i].i) {
            TestErrPrintf("Integer components don't match!, wdata[%d].i=%d, rdata[%d].i=%d\n",(int)i,(int)wdata[i].i,(int)i,(int)rdata[i].i);
            continue;
        } /* end if */
        if(!H5_FLT_ABS_EQUAL(wdata[i].f,rdata[i].f)) {
            TestErrPrintf("Float components don't match!, wdata[%d].f=%f, rdata[%d].f=%f\n",(int)i,(double)wdata[i].f,(int)i,(double)rdata[i].f);
            continue;
        } /* end if */
        if(wdata[i].v.len!=rdata[i].v.len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].v.len=%d, rdata[%d].v.len=%d\n",__LINE__,(int)i,(int)wdata[i].v.len,(int)i,(int)rdata[i].v.len);
            continue;
        } /* end if */
        for(j=0; j<rdata[i].v.len; j++) {
            if( ((unsigned int *)wdata[i].v.p)[j] != ((unsigned int *)rdata[i].v.p)[j] ) {
                TestErrPrintf("VL data values don't match!, wdata[%d].v.p[%d]=%d, rdata[%d].v.p[%d]=%d\n",(int)i,(int)j, (int)((unsigned int *)wdata[i].v.p)[j], (int)i,(int)j, (int)((unsigned int *)rdata[i].v.p)[j]);
                continue;
            } /* end if */
        } /* end for */
    } /* end for */

    /* Reclaim the VL data */
    ret=H5Dvlen_reclaim(tid2,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(tid2,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

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

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

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

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

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

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

} /* end rewrite_vltypes_compound_vlen_atomic() */

/****************************************************************
**
**  vlen_size_func(): Test basic VL datatype code.
**      Tests VL datatype with VL datatypes of atomic datatypes.
**
****************************************************************/
static size_t vlen_size_func(unsigned long n)
{
    size_t u=1;
    size_t tmp=1;
    size_t result=1;

    while(u<n) {
        u++;
        tmp+=u;
        result+=tmp;
    }
    return(result);
}

/****************************************************************
**
**  test_vltypes_vlen_vlen_atomic(): Test basic VL datatype code.
**      Tests VL datatype with VL datatypes of atomic datatypes.
**
****************************************************************/
static void
test_vltypes_vlen_vlen_atomic(void)
{
    hvl_t wdata[SPACE1_DIM1];   /* Information to write */
    hvl_t rdata[SPACE1_DIM1];   /* Information read in */
    hvl_t *t1, *t2;             /* Temporary pointer to VL information */
    hid_t        fid1;        /* HDF5 File IDs        */
    hid_t        dataset;    /* Dataset ID            */
    hid_t        sid1;       /* Dataspace ID            */
    hid_t        tid1, tid2; /* Datatype IDs         */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t        dims1[] = {SPACE1_DIM1};
    hsize_t     size;       /* Number of bytes which will be used */
    unsigned       i,j,k;      /* counting variables */
    size_t         mem_used=0; /* Memory used during allocation */
    herr_t        ret;        /* Generic return value        */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing VL Datatypes with VL Atomic Datatype Component Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i=0; i<SPACE1_DIM1; i++) {
        wdata[i].p=HDmalloc((i+1)*sizeof(hvl_t));
        if(wdata[i].p==NULL) {
            TestErrPrintf("Cannot allocate memory for VL data! i=%u\n",i);
            return;
        } /* end if */
        wdata[i].len=i+1;
        for(t1=(hvl_t *)(wdata[i].p),j=0; j<(i+1); j++, t1++) {
            t1->p=HDmalloc((j+1)*sizeof(unsigned int));
            if(t1->p==NULL) {
                TestErrPrintf("Cannot allocate memory for VL data! i=%u, j=%u\n",i,j);
                return;
            } /* end if */
            t1->len=j+1;
            for(k=0; k<(j+1); k++)
                ((unsigned int *)t1->p)[k]=i*100+j*10+k;
        } /* end for */
    } /* 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, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a VL datatype to refer to */
    tid1 = H5Tvlen_create (H5T_NATIVE_UINT);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* Create the base VL type */
    tid2 = H5Tvlen_create (tid1);
    CHECK(tid2, FAIL, "H5Tvlen_create");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", tid2, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

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

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

    /* 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");

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

    /* Create dataspace for datasets */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a VL datatype to refer to */
    tid1 = H5Tvlen_create(H5T_NATIVE_UINT);
    CHECK(tid1, FAIL, "H5Tvlen_create");

    /* Create the base VL type */
    tid2 = H5Tvlen_create(tid1);
    CHECK(tid2, FAIL, "H5Tvlen_create");

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

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_free_custom, &mem_used);
    CHECK(ret, FAIL, "H5Pset_vlen_mem_manager");

    /* Make certain the correct amount of memory was used */
    ret = H5Dvlen_get_buf_size(dataset, tid2, sid1, &size);
    CHECK(ret, FAIL, "H5Dvlen_get_buf_size");

    /* 10 hvl_t elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    /* 20 unsigned int elements allocated = 1 + 3 + 6 + 10 elements */
    VERIFY(size, (hsize_t)(((SPACE1_DIM1 * (SPACE1_DIM1 + 1)) / 2) * sizeof(hvl_t) + vlen_size_func((unsigned long)SPACE1_DIM1) * sizeof(unsigned int)), "H5Dvlen_get_buf_size");

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid2, H5S_ALL, H5S_ALL, xfer_pid, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Make certain the correct amount of memory has been used */
    /* 10 hvl_t elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    /* 20 unsigned int elements allocated = 1 + 3 + 6 + 10 elements */
    VERIFY(mem_used, (size_t)(((SPACE1_DIM1 * (SPACE1_DIM1 + 1)) / 2) * sizeof(hvl_t) + vlen_size_func((unsigned long)SPACE1_DIM1) * sizeof(unsigned int)), "H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata[i].len!=rdata[i].len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].len=%d, rdata[%d].len=%d\n",__LINE__,(int)i,(int)wdata[i].len,(int)i,(int)rdata[i].len);
            continue;
        } /* end if */
        for(t1=(hvl_t *)wdata[i].p, t2=(hvl_t *)(rdata[i].p), j=0; j<rdata[i].len; j++, t1++, t2++) {
            if(t1->len!=t2->len) {
                TestErrPrintf("%d: VL data length don't match!, i=%d, j=%d, t1->len=%d, t2->len=%d\n",__LINE__,(int)i,(int)j,(int)t1->len,(int)t2->len);
                continue;
            } /* end if */
            for(k=0; k<t2->len; k++) {
                if( ((unsigned int *)t1->p)[k] != ((unsigned int *)t2->p)[k] ) {
                    TestErrPrintf("VL data values don't match!, t1->p[%d]=%d, t2->p[%d]=%d\n",(int)k, (int)((unsigned int *)t1->p)[k], (int)k, (int)((unsigned int *)t2->p)[k]);
                    continue;
                } /* end if */
            } /* end for */
        } /* end for */
    } /* end for */

    /* Reclaim all the (nested) VL data */
    ret=H5Dvlen_reclaim(tid2,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(tid2,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

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

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

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

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

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

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

} /* end test_vltypes_vlen_vlen_atomic() */

/****************************************************************
**
**  rewrite_longer_vltypes_vlen_vlen_atomic(): Test basic VL datatype code.
**      Tests VL datatype with VL datatypes of atomic datatypes.
**
****************************************************************/
static void
rewrite_longer_vltypes_vlen_vlen_atomic(void)
{
    hvl_t wdata[SPACE1_DIM1];   /* Information to write */
    hvl_t rdata[SPACE1_DIM1];   /* Information read in */
    hvl_t *t1, *t2;             /* Temporary pointer to VL information */
    hid_t               fid1;           /* HDF5 File IDs                */
    hid_t               dataset;        /* Dataset ID                   */
    hid_t               sid1;       /* Dataspace ID                     */
    hid_t               tid2;     /* Datatype IDs         */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t     size;       /* Number of bytes which will be used */
    unsigned       i,j,k;      /* counting variables */
    size_t         mem_used=0; /* Memory used during allocation */
    unsigned        increment=1;
    herr_t              ret;            /* Generic return value         */

    /* Output message about test being performed */
    MESSAGE(5, ("Check memory leak for VL Datatypes with VL Atomic Datatype Component Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i = 0; i < SPACE1_DIM1; i++) {
        wdata[i].p = HDmalloc((i + increment) * sizeof(hvl_t));
        if(wdata[i].p == NULL) {
            TestErrPrintf("Cannot allocate memory for VL data! i=%u\n",i);
            return;
        } /* end if */
        wdata[i].len = i + increment;
        for(t1 = (hvl_t *)(wdata[i].p), j = 0; j < (i + increment); j++, t1++) {
            t1->p = HDmalloc((j + 1) * sizeof(unsigned int));
            if(t1->p == NULL) {
                TestErrPrintf("Cannot allocate memory for VL data! i=%u, j=%u\n", i, j);
                return;
            } /* end if */
            t1->len = j + 1;
            for(k = 0; k < (j + 1); k++)
                ((unsigned int *)t1->p)[k] = i * 1000 + j * 100 + k * 10;
        } /* end for */
    } /* end for */

    /* Open file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

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

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

    /* Open datatype of the dataset */
    tid2 = H5Dget_type(dataset);
    CHECK(tid2, FAIL, "H5Dget_type");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

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

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

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

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


    /* Open the file for data checking */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

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

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

    /* Get datatype for dataset */
    tid2 = H5Dget_type(dataset);
    CHECK(tid2, FAIL, "H5Dget_type");

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_free_custom, &mem_used);
    CHECK(ret, FAIL, "H5Pset_vlen_mem_manager");

    /* Make certain the correct amount of memory was used */
    ret = H5Dvlen_get_buf_size(dataset, tid2, sid1, &size);
    CHECK(ret, FAIL, "H5Dvlen_get_buf_size");

    /* 18 hvl_t elements allocated = 3 + 4 + 5 + 6 elements for each array position */
    /* 52 unsigned int elements allocated = 6 + 10 + 15 + 21 elements */
    /*VERIFY(size, 18 * sizeof(hvl_t) + 52 * sizeof(unsigned int), "H5Dvlen_get_buf_size");*/

    /* Read dataset from disk */
    ret = H5Dread(dataset, tid2, H5S_ALL, H5S_ALL, xfer_pid, rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Make certain the correct amount of memory has been used */
    /* 18 hvl_t elements allocated = 3+4+5+6elements for each array position */
    /* 52 unsigned int elements allocated = 6+10+15+21 elements */
    /*VERIFY(mem_used,18*sizeof(hvl_t)+52*sizeof(unsigned int),"H5Dread");*/

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata[i].len!=rdata[i].len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].len=%d, rdata[%d].len=%d\n",__LINE__,(int)i,(int)wdata[i].len,(int)i,(int)rdata[i].len);
            continue;
        } /* end if */
        for(t1=(hvl_t *)(wdata[i].p), t2=(hvl_t *)(rdata[i].p), j=0; j<rdata[i].len; j++, t1++, t2++) {
            if(t1->len!=t2->len) {
                TestErrPrintf("%d: VL data length don't match!, i=%d, j=%d, t1->len=%d, t2->len=%d\n",__LINE__,(int)i,(int)j,(int)t1->len,(int)t2->len);
                continue;
            } /* end if */
            for(k=0; k<t2->len; k++) {
                if( ((unsigned int *)t1->p)[k] != ((unsigned int *)t2->p)[k] ) {
                    TestErrPrintf("VL data values don't match!, t1->p[%d]=%d, t2->p[%d]=%d\n",(int)k, (int)((unsigned int *)t1->p)[k], (int)k, (int)((unsigned int *)t2->p)[k]);
                    continue;
                } /* end if */
            } /* end for */
        } /* end for */
    } /* end for */

    /* Reclaim all the (nested) VL data */
    ret=H5Dvlen_reclaim(tid2,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(tid2,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

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

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

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

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

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

} /* end rewrite_longer_vltypes_vlen_vlen_atomic() */

/****************************************************************
**
**  rewrite_shorter_vltypes_vlen_vlen_atomic(): Test basic VL datatype code.
**      Tests VL datatype with VL datatypes of atomic datatypes.
**
****************************************************************/
static void
rewrite_shorter_vltypes_vlen_vlen_atomic(void)
{
    hvl_t wdata[SPACE1_DIM1];   /* Information to write */
    hvl_t rdata[SPACE1_DIM1];   /* Information read in */
    hvl_t *t1, *t2;             /* Temporary pointer to VL information */
    hid_t               fid1;           /* HDF5 File IDs                */
    hid_t               dataset;        /* Dataset ID                   */
    hid_t               sid1;       /* Dataspace ID                     */
    hid_t               tid2;   /* Datatype IDs         */
    hid_t       xfer_pid;   /* Dataset transfer property list ID */
    hsize_t     size;       /* Number of bytes which will be used */
    unsigned       i,j,k;      /* counting variables */
    size_t         mem_used=0; /* Memory used during allocation */
    unsigned         increment=1;
    herr_t              ret;            /* Generic return value         */

    /* Output message about test being performed */
    MESSAGE(5, ("Check memory leak for VL Datatypes with VL Atomic Datatype Component Functionality\n"));

    /* Allocate and initialize VL data to write */
    for(i=0; i<SPACE1_DIM1; i++) {
        wdata[i].p=HDmalloc((i+increment)*sizeof(hvl_t));
        if(wdata[i].p==NULL) {
            TestErrPrintf("Cannot allocate memory for VL data! i=%u\n",i);
            return;
        } /* end if */
        wdata[i].len=i+increment;
        for(t1=(hvl_t *)(wdata[i].p),j=0; j<(i+increment); j++, t1++) {
            t1->p=HDmalloc((j+1)*sizeof(unsigned int));
            if(t1->p==NULL) {
                TestErrPrintf("Cannot allocate memory for VL data! i=%u, j=%u\n",i,j);
                return;
            } /* end if */
            t1->len=j+1;
            for(k=0; k<(j+1); k++)
                ((unsigned int *)t1->p)[k]=i*100000+j*1000+k*10;
        } /* end for */
    } /* end for */

    /* Open file */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

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

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

    /* Open datatype of the dataset */
    tid2 = H5Dget_type(dataset);
    CHECK(tid2, FAIL, "H5Dget_type");

    /* Write dataset to disk */
    ret = H5Dwrite(dataset, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata);
    CHECK(ret, FAIL, "H5Dwrite");

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

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

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

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


    /* Open the file for data checking */
    fid1 = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fopen");

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

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

    /* Get datatype for dataset */
    tid2 = H5Dget_type(dataset);
    CHECK(tid2, FAIL, "H5Dget_type");

    /* 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_vltypes_alloc_custom, &mem_used, test_vltypes_free_custom, &mem_used);
    CHECK(ret, FAIL, "H5Pset_vlen_mem_manager");

    /* Make certain the correct amount of memory was used */
    ret = H5Dvlen_get_buf_size(dataset, tid2, sid1, &size);
    CHECK(ret, FAIL, "H5Dvlen_get_buf_size");

    /* 10 hvl_t elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    /* 20 unsigned int elements allocated = 1 + 3 + 6 + 10 elements */
    VERIFY(size, (hsize_t)(((SPACE1_DIM1*(SPACE1_DIM1 + 1)) / 2) * sizeof(hvl_t) + vlen_size_func((unsigned long)SPACE1_DIM1) * sizeof(unsigned int)), "H5Dvlen_get_buf_size");

    /* Read dataset from disk */
    ret=H5Dread(dataset,tid2,H5S_ALL,H5S_ALL,xfer_pid,rdata);
    CHECK(ret, FAIL, "H5Dread");

    /* Make certain the correct amount of memory has been used */
    /* 10 hvl_t elements allocated = 1 + 2 + 3 + 4 elements for each array position */
    /* 20 unsigned int elements allocated = 1 + 3 + 6 + 10 elements */
    VERIFY(mem_used, (size_t)(((SPACE1_DIM1*(SPACE1_DIM1+1))/2)*sizeof(hvl_t)+vlen_size_func((unsigned long)SPACE1_DIM1)*sizeof(unsigned int)),"H5Dread");

    /* Compare data read in */
    for(i=0; i<SPACE1_DIM1; i++) {
        if(wdata[i].len!=rdata[i].len) {
            TestErrPrintf("%d: VL data length don't match!, wdata[%d].len=%d, rdata[%d].len=%d\n",__LINE__,(int)i,(int)wdata[i].len,(int)i,(int)rdata[i].len);
            continue;
        } /* end if */
        for(t1=(hvl_t *)(wdata[i].p), t2=(hvl_t *)(rdata[i].p), j=0; j<rdata[i].len; j++, t1++, t2++) {
            if(t1->len!=t2->len) {
                TestErrPrintf("%d: VL data length don't match!, i=%d, j=%d, t1->len=%d, t2->len=%d\n",__LINE__,(int)i,(int)j,(int)t1->len,(int)t2->len);
                continue;
            } /* end if */
            for(k=0; k<t2->len; k++) {
                if( ((unsigned int *)t1->p)[k] != ((unsigned int *)t2->p)[k] ) {
                    TestErrPrintf("VL data values don't match!, t1->p[%d]=%d, t2->p[%d]=%d\n",(int)k, (int)((unsigned int *)t1->p)[k], (int)k, (int)((unsigned int *)t2->p)[k]);
                    continue;
                } /* end if */
            } /* end for */
        } /* end for */
    } /* end for */

    /* Reclaim all the (nested) VL data */
    ret=H5Dvlen_reclaim(tid2,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(tid2,sid1,H5P_DEFAULT,wdata);
    CHECK(ret, FAIL, "H5Dvlen_reclaim");

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

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

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

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

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

} /* end rewrite_shorter_vltypes_vlen_vlen_atomic() */

/****************************************************************
**
**  test_vltypes_fill_value(): Test fill value for VL data.
**  One tests data space isn't allocated; another tests data
**  space is allocated.
**
****************************************************************/
static void
test_vltypes_fill_value(void)
{
    typedef struct dtype1_struct {
        unsigned int    gui;
        unsigned int    pgui;
        char   *str_id;
        char   *str_name;
        char   *str_desc;
        char   *str_orig;
        char   *str_stat;
        unsigned int    ver;
        double val;
        double ma;
        double mi;
        char   *str_form;
        char   *str_unit;
    } dtype1_struct;

    herr_t ret;
    hid_t file_id;
    hid_t dtype1_id = -1;
    hid_t str_id = -1;
    hid_t small_dspace_id;              /* Dataspace ID for small datasets */
    hid_t large_dspace_id;              /* Dataspace ID for large datasets */
    hid_t small_select_dspace_id;       /* Dataspace ID for selection in small datasets */
    hid_t large_select_dspace_id;       /* Dataspace ID for selection in large datasets */
    hid_t dset_dspace_id;               /* Dataspace ID for a particular dataset */
    hid_t dset_select_dspace_id;        /* Dataspace ID for selection in a particular dataset */
    hid_t scalar_dspace_id;             /* Dataspace ID for scalar dataspace */
    hid_t single_dspace_id;             /* Dataspace ID for single element selection */
    hsize_t single_offset[] = {2};      /* Offset of single element selection */
    hsize_t single_block[] = {1};       /* Block size of single element selection */
    hsize_t select_offset[] = {0};      /* Offset of non-contiguous element selection */
    hsize_t select_stride[] = {2};      /* Stride size of non-contiguous element selection */
    hsize_t small_select_count[] = {SPACE4_DIM_SMALL / 2};       /* Count of small non-contiguous element selection */
    hsize_t large_select_count[] = {SPACE4_DIM_LARGE / 2};       /* Count of large non-contiguous element selection */
    hsize_t select_block[] = {1};       /* Block size of non-contiguous element selection */
    hid_t dcpl_id, xfer_pid;
    hid_t dset_id;
    hsize_t small_dims[] = {SPACE4_DIM_SMALL};
    hsize_t large_dims[] = {SPACE4_DIM_LARGE};
    size_t dset_elmts;                  /* Number of elements in a particular dataset */
    const dtype1_struct fill1 = {1, 2, "foobar", "", NULL, "\0", "dead", 3, 4.0F, 100.0F, 1.0F, "liquid", "meter"};
    const dtype1_struct wdata = {3, 4, "", NULL, "\0", "foo", "two", 6, 8.0F, 200.0F, 2.0F, "solid", "yard"};
    dtype1_struct *rbuf = NULL;         /* Buffer for reading data */
    size_t mem_used = 0;                /* Memory used during allocation */
    H5D_layout_t layout;                /* Dataset storage layout */
    char dset_name1[64], dset_name2[64];       /* Dataset names */
    unsigned i;

    /* Output message about test being performed */
    MESSAGE(5, ("Check fill value for VL data\n"));

    /* Create a string datatype */
    str_id = H5Tcopy(H5T_C_S1);
    CHECK(str_id, FAIL, "H5Tcopy");
    ret = H5Tset_size(str_id,H5T_VARIABLE);
    CHECK(ret, FAIL, "H5Tset_size");

    /* Create a compound data type */
    dtype1_id = H5Tcreate(H5T_COMPOUND, sizeof(struct dtype1_struct));
    CHECK(dtype1_id, FAIL, "H5Tcreate");

    ret = H5Tinsert(dtype1_id,"guid",HOFFSET(struct dtype1_struct,gui),H5T_NATIVE_UINT);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"pguid",HOFFSET(struct dtype1_struct,pgui),H5T_NATIVE_UINT);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"str_id",HOFFSET(dtype1_struct,str_id),str_id);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"str_name",HOFFSET(dtype1_struct,str_name),str_id);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"str_desc",HOFFSET(dtype1_struct,str_desc),str_id);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"str_orig",HOFFSET(dtype1_struct,str_orig),str_id);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"str_stat",HOFFSET(dtype1_struct,str_stat),str_id);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"ver",HOFFSET(struct dtype1_struct,ver),H5T_NATIVE_UINT);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"val",HOFFSET(struct dtype1_struct,val),H5T_NATIVE_DOUBLE);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"ma",HOFFSET(struct dtype1_struct,ma),H5T_NATIVE_DOUBLE);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"mi",HOFFSET(struct dtype1_struct,mi),H5T_NATIVE_DOUBLE);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"str_form",HOFFSET(dtype1_struct,str_form),str_id);
    CHECK(ret, FAIL, "H5Tinsert");

    ret = H5Tinsert(dtype1_id,"str_unit",HOFFSET(dtype1_struct,str_unit),str_id);
    CHECK(ret, FAIL, "H5Tinsert");

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


    /* Allocate space for the buffer to read data */
    rbuf = (dtype1_struct *)HDmalloc(SPACE4_DIM_LARGE * sizeof(dtype1_struct));
    CHECK_PTR(rbuf, "HDmalloc");


    /* Create the small & large dataspaces to use */
    small_dspace_id = H5Screate_simple(SPACE4_RANK, small_dims, NULL);
    CHECK(small_dspace_id, FAIL, "H5Screate_simple");

    large_dspace_id = H5Screate_simple(SPACE4_RANK, large_dims, NULL);
    CHECK(large_dspace_id, FAIL, "H5Screate_simple");

    /* Create small & large dataspaces w/non-contiguous selections */
    small_select_dspace_id = H5Scopy(small_dspace_id);
    CHECK(small_select_dspace_id, FAIL, "H5Scopy");

    ret = H5Sselect_hyperslab(small_select_dspace_id, H5S_SELECT_SET,
            select_offset, select_stride, small_select_count, select_block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    large_select_dspace_id = H5Scopy(large_dspace_id);
    CHECK(large_select_dspace_id, FAIL, "H5Scopy");

    ret = H5Sselect_hyperslab(large_select_dspace_id, H5S_SELECT_SET,
            select_offset, select_stride, large_select_count, select_block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create a scalar dataspace */
    scalar_dspace_id = H5Screate(H5S_SCALAR);
    CHECK(scalar_dspace_id, FAIL, "H5Screate");

    /* Create dataset create property list and set the fill value */
    dcpl_id = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl_id, FAIL, "H5Pcreate");

    ret = H5Pset_fill_value(dcpl_id, dtype1_id, &fill1);
    CHECK(ret, FAIL, "H5Pset_fill_value");

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

    /* Create datasets with different storage layouts */
    for(layout = H5D_COMPACT; layout <= H5D_CHUNKED; H5_INC_ENUM(H5D_layout_t, layout)) {
        unsigned compress_loop;         /* # of times to run loop, for testing compressed chunked dataset */
        unsigned test_loop;             /* Loop over datasets */

#ifdef H5_HAVE_FILTER_DEFLATE
        if(layout == H5D_CHUNKED)
            compress_loop = 2;
        else
#endif /* H5_HAVE_FILTER_DEFLATE */
            compress_loop = 1;

        /* Loop over dataset operations */
        for(test_loop = 0; test_loop < compress_loop; test_loop++) {
            hid_t tmp_dcpl_id;      /* Temporary copy of the dataset creation property list */

            /* Make a copy of the dataset creation property list */
            tmp_dcpl_id = H5Pcopy(dcpl_id);
            CHECK(tmp_dcpl_id, FAIL, "H5Pcopy");

            /* Layout specific actions */
            switch(layout) {
                case H5D_COMPACT:
                    HDstrcpy(dset_name1, "dataset1-compact");
                    HDstrcpy(dset_name2, "dataset2-compact");
                    dset_dspace_id = small_dspace_id;
                    ret = H5Pset_layout(tmp_dcpl_id, H5D_COMPACT);
                    CHECK(ret, FAIL, "H5Pset_layout");
                    break;

                case H5D_CONTIGUOUS:
                    HDstrcpy(dset_name1, "dataset1-contig");
                    HDstrcpy(dset_name2, "dataset2-contig");
                    dset_dspace_id = large_dspace_id;
                    break;

                case H5D_CHUNKED:
                    {
                        hsize_t chunk_dims[1] = {SPACE4_DIM_LARGE / 4};

                        dset_dspace_id = large_dspace_id;
                        ret = H5Pset_chunk(tmp_dcpl_id, 1, chunk_dims);
                        CHECK(ret, FAIL, "H5Pset_chunk");
#ifdef H5_HAVE_FILTER_DEFLATE
                        if(test_loop == 1) {
                            HDstrcpy(dset_name1, "dataset1-chunked-compressed");
                            HDstrcpy(dset_name2, "dataset2-chunked-compressed");
                            ret = H5Pset_deflate(tmp_dcpl_id, 3);
                            CHECK(ret, FAIL, "H5Pset_deflate");
                        } /* end if */
                        else {
#endif /* H5_HAVE_FILTER_DEFLATE */
                            HDstrcpy(dset_name1, "dataset1-chunked");
                            HDstrcpy(dset_name2, "dataset2-chunked");
#ifdef H5_HAVE_FILTER_DEFLATE
                        } /* end else */
#endif /* H5_HAVE_FILTER_DEFLATE */
                    }
                    break;

                case H5D_VIRTUAL:
                    assert(0 && "Invalid layout type!");
                    break;

                case H5D_LAYOUT_ERROR:
                case H5D_NLAYOUTS:
                default:
                    assert(0 && "Unknown layout type!");
                    break;
            } /* end switch */

            /* Create first data set with default setting - no space is allocated */
            dset_id = H5Dcreate2(file_id, dset_name1, dtype1_id, dset_dspace_id, H5P_DEFAULT, tmp_dcpl_id, H5P_DEFAULT);
            CHECK(dset_id, FAIL, "H5Dcreate2");

            ret = H5Dclose(dset_id);
            CHECK(ret, FAIL, "H5Dclose");


            /* Create a second data set with space allocated and fill value written */
            ret = H5Pset_fill_time(tmp_dcpl_id, H5D_FILL_TIME_IFSET);
            CHECK(ret, FAIL, "H5Pset_fill_time");

            ret = H5Pset_alloc_time(tmp_dcpl_id, H5D_ALLOC_TIME_EARLY);
            CHECK(ret, FAIL, "H5Pset_alloc_time");

            dset_id = H5Dcreate2(file_id, dset_name2, dtype1_id, dset_dspace_id, H5P_DEFAULT, tmp_dcpl_id, H5P_DEFAULT);
            CHECK(dset_id, FAIL, "H5Dcreate2");

            ret = H5Dclose(dset_id);
            CHECK(ret, FAIL, "H5Dclose");

            /* Close temporary DCPL */
            ret = H5Pclose(tmp_dcpl_id);
            CHECK(ret, FAIL, "H5Pclose");
        } /* end for */
    } /* end for */

    ret = H5Fclose(file_id);
    CHECK(ret, FAIL, "H5Fclose");

    ret = H5Pclose(dcpl_id);
    CHECK(ret, FAIL, "H5Pclose");


    /* 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_vltypes_alloc_custom,&mem_used,test_vltypes_free_custom,&mem_used);
    CHECK(ret, FAIL, "H5Pset_vlen_mem_manager");

    /* Open the file to check data set value */
    file_id = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(file_id, FAIL, "H5Fopen");

    /* Read empty datasets with different storage layouts */
    for(layout = H5D_COMPACT; layout <= H5D_CHUNKED; H5_INC_ENUM(H5D_layout_t, layout)) {
        unsigned compress_loop;         /* # of times to run loop, for testing compressed chunked dataset */
        unsigned test_loop;             /* Loop over datasets */

#ifdef H5_HAVE_FILTER_DEFLATE
        if(layout == H5D_CHUNKED)
            compress_loop = 2;
        else
#endif /* H5_HAVE_FILTER_DEFLATE */
            compress_loop = 1;

        /* Loop over dataset operations */
        for(test_loop = 0; test_loop < compress_loop; test_loop++) {

            /* Layout specific actions */
            switch(layout) {
                case H5D_COMPACT:
                    HDstrcpy(dset_name1, "dataset1-compact");
                    HDstrcpy(dset_name2, "dataset2-compact");
                    dset_dspace_id = small_dspace_id;
                    dset_select_dspace_id = small_select_dspace_id;
                    dset_elmts = SPACE4_DIM_SMALL;
                    break;

                case H5D_CONTIGUOUS:
                    HDstrcpy(dset_name1, "dataset1-contig");
                    HDstrcpy(dset_name2, "dataset2-contig");
                    dset_dspace_id = large_dspace_id;
                    dset_select_dspace_id = large_select_dspace_id;
                    dset_elmts = SPACE4_DIM_LARGE;
                    break;

                case H5D_CHUNKED:
#ifdef H5_HAVE_FILTER_DEFLATE
                    if(test_loop == 1) {
                        HDstrcpy(dset_name1, "dataset1-chunked-compressed");
                        HDstrcpy(dset_name2, "dataset2-chunked-compressed");
                    } /* end if */
                    else {
#endif /* H5_HAVE_FILTER_DEFLATE */
                        HDstrcpy(dset_name1, "dataset1-chunked");
                        HDstrcpy(dset_name2, "dataset2-chunked");
#ifdef H5_HAVE_FILTER_DEFLATE
                    } /* end else */
#endif /* H5_HAVE_FILTER_DEFLATE */
                    dset_dspace_id = large_dspace_id;
                    dset_select_dspace_id = large_select_dspace_id;
                    dset_elmts = SPACE4_DIM_LARGE;
                    break;

                case H5D_VIRTUAL:
                    assert(0 && "Invalid layout type!");
                    break;

                case H5D_LAYOUT_ERROR:
                case H5D_NLAYOUTS:
                default:
                    assert(0 && "Unknown layout type!");
                    break;
            } /* end switch */

            /* Open first data set */
            dset_id = H5Dopen2(file_id, dset_name1, H5P_DEFAULT);
            CHECK(dset_id, FAIL, "H5Dopen2");

            /* Read in the entire 'empty' dataset of fill value */
            ret = H5Dread(dset_id, dtype1_id, dset_dspace_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dread");

            /* Compare data read in */
            for(i = 0; i < dset_elmts; i++) {
                if(HDstrcmp(rbuf[i].str_id, "foobar")
                        || HDstrcmp(rbuf[i].str_name, "")
                        || rbuf[i].str_desc
                        || HDstrcmp(rbuf[i].str_orig, "\0")
                        || HDstrcmp(rbuf[i].str_stat, "dead")
                        || HDstrcmp(rbuf[i].str_form, "liquid")
                        || HDstrcmp(rbuf[i].str_unit, "meter")) {
                    TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                    continue;
                } /* end if */
            } /* end for */

            /* Release the space */
            ret = H5Dvlen_reclaim(dtype1_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dvlen_reclaim");

            /* Clear the read buffer */
            HDmemset(rbuf, 0, dset_elmts * sizeof(dtype1_struct));

            /* Read in non-contiguous selection from 'empty' dataset of fill value */
            ret = H5Dread(dset_id, dtype1_id, dset_select_dspace_id, dset_select_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dread");

            /* Compare data read in */
            for(i = 0; i < dset_elmts; i++) {
                if((i % 2) == select_offset[0]) {
                    if(HDstrcmp(rbuf[i].str_id, "foobar")
                            || HDstrcmp(rbuf[i].str_name, "")
                            || rbuf[i].str_desc
                            || HDstrcmp(rbuf[i].str_orig, "\0")
                            || HDstrcmp(rbuf[i].str_stat, "dead")
                            || HDstrcmp(rbuf[i].str_form, "liquid")
                            || HDstrcmp(rbuf[i].str_unit, "meter")) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                        continue;
                    } /* end if */
                } /* end if */
                else {
                    if(rbuf[i].str_id || rbuf[i].str_name || rbuf[i].str_desc
                            || rbuf[i].str_orig || rbuf[i].str_stat
                            || rbuf[i].str_form || rbuf[i].str_unit) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                        continue;
                    } /* end if */
                } /* end else */
            } /* end for */

            /* Release the space */
            ret = H5Dvlen_reclaim(dtype1_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dvlen_reclaim");

            ret = H5Dclose(dset_id);
            CHECK(ret, FAIL, "H5Dclose");


            /* Open the second data set to check the value of data */
            dset_id = H5Dopen2(file_id, dset_name2, H5P_DEFAULT);
            CHECK(dset_id, FAIL, "H5Dopen2");

            /* Read in the entire 'empty' dataset of fill value */
            ret = H5Dread(dset_id, dtype1_id, dset_dspace_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dread");

            /* Compare data read in */
            for(i = 0; i < dset_elmts; i++) {
                if(HDstrcmp(rbuf[i].str_id, "foobar")
                        || HDstrcmp(rbuf[i].str_name, "")
                        || rbuf[i].str_desc
                        || HDstrcmp(rbuf[i].str_orig, "\0")
                        || HDstrcmp(rbuf[i].str_stat, "dead")
                        || HDstrcmp(rbuf[i].str_form, "liquid")
                        || HDstrcmp(rbuf[i].str_unit, "meter")) {
                    TestErrPrintf("%d: VL data doesn't match!, index(i)=%d\n",__LINE__,(int)i);
                    continue;
                } /* end if */
            } /* end for */

            /* Release the space */
            ret = H5Dvlen_reclaim(dtype1_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dvlen_reclaim");

            /* Clear the read buffer */
            HDmemset(rbuf, 0, dset_elmts * sizeof(dtype1_struct));

            /* Read in non-contiguous selection from 'empty' dataset of fill value */
            ret = H5Dread(dset_id, dtype1_id, dset_select_dspace_id, dset_select_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dread");

            /* Compare data read in */
            for(i = 0; i < dset_elmts; i++) {
                if((i % 2) == select_offset[0]) {
                    if(HDstrcmp(rbuf[i].str_id, "foobar")
                            || HDstrcmp(rbuf[i].str_name, "")
                            || rbuf[i].str_desc
                            || HDstrcmp(rbuf[i].str_orig, "\0")
                            || HDstrcmp(rbuf[i].str_stat, "dead")
                            || HDstrcmp(rbuf[i].str_form, "liquid")
                            || HDstrcmp(rbuf[i].str_unit, "meter")) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                        continue;
                    } /* end if */
                } /* end if */
                else {
                    if(rbuf[i].str_id || rbuf[i].str_name || rbuf[i].str_desc
                            || rbuf[i].str_orig || rbuf[i].str_stat
                            || rbuf[i].str_form || rbuf[i].str_unit) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                        continue;
                    } /* end if */
                } /* end else */
            } /* end for */

            /* Release the space */
            ret = H5Dvlen_reclaim(dtype1_id, dset_select_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dvlen_reclaim");

            ret = H5Dclose(dset_id);
            CHECK(ret, FAIL, "H5Dclose");
        } /* end for */
    } /* end for */

    ret = H5Fclose(file_id);
    CHECK(ret, FAIL, "H5Fclose");


    /* Open the file to check data set value */
    file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK(file_id, FAIL, "H5Fopen");

    /* Write one element & fill values to  datasets with different storage layouts */
    for(layout = H5D_COMPACT; layout <= H5D_CHUNKED; H5_INC_ENUM(H5D_layout_t, layout)) {
        unsigned compress_loop;         /* # of times to run loop, for testing compressed chunked dataset */
        unsigned test_loop;             /* Loop over datasets */

#ifdef H5_HAVE_FILTER_DEFLATE
        if(layout == H5D_CHUNKED)
            compress_loop = 2;
        else
#endif /* H5_HAVE_FILTER_DEFLATE */
            compress_loop = 1;

        /* Loop over dataset operations */
        for(test_loop = 0; test_loop < compress_loop; test_loop++) {

            /* Layout specific actions */
            switch(layout) {
                case H5D_COMPACT:
                    HDstrcpy(dset_name1, "dataset1-compact");
                    HDstrcpy(dset_name2, "dataset2-compact");
                    dset_dspace_id = small_dspace_id;
                    dset_select_dspace_id = small_select_dspace_id;
                    dset_elmts = SPACE4_DIM_SMALL;
                    break;

                case H5D_CONTIGUOUS:
                    HDstrcpy(dset_name1, "dataset1-contig");
                    HDstrcpy(dset_name2, "dataset2-contig");
                    dset_dspace_id = large_dspace_id;
                    dset_select_dspace_id = large_select_dspace_id;
                    dset_elmts = SPACE4_DIM_LARGE;
                    break;

                case H5D_CHUNKED:
#ifdef H5_HAVE_FILTER_DEFLATE
                    if(test_loop == 1) {
                        HDstrcpy(dset_name1, "dataset1-chunked-compressed");
                        HDstrcpy(dset_name2, "dataset2-chunked-compressed");
                    } /* end if */
                    else {
#endif /* H5_HAVE_FILTER_DEFLATE */
                        HDstrcpy(dset_name1, "dataset1-chunked");
                        HDstrcpy(dset_name2, "dataset2-chunked");
#ifdef H5_HAVE_FILTER_DEFLATE
                    } /* end else */
#endif /* H5_HAVE_FILTER_DEFLATE */
                    dset_dspace_id = large_dspace_id;
                    dset_select_dspace_id = large_select_dspace_id;
                    dset_elmts = SPACE4_DIM_LARGE;
                    break;

                case H5D_VIRTUAL:
                    assert(0 && "Invalid layout type!");
                    break;

                case H5D_LAYOUT_ERROR:
                case H5D_NLAYOUTS:
                default:
                    assert(0 && "Unknown layout type!");
                    break;
            } /* end switch */

            /* Copy the dataset's dataspace */
            single_dspace_id = H5Scopy(dset_dspace_id);
            CHECK(single_dspace_id, FAIL, "H5Scopy");

            /* Set a single element in the dataspace */
            ret = H5Sselect_hyperslab(single_dspace_id, H5S_SELECT_SET, single_offset,
                    NULL, single_block, NULL);
            CHECK(ret, FAIL, "H5Sselect_hyperslab");

            /* Open first data set */
            dset_id = H5Dopen2(file_id, dset_name1, H5P_DEFAULT);
            CHECK(dset_id, FAIL, "H5Dopen2");

            /* Write one element in the dataset */
            ret = H5Dwrite(dset_id, dtype1_id, scalar_dspace_id, single_dspace_id, xfer_pid, &wdata);
            CHECK(ret, FAIL, "H5Dwrite");

            ret = H5Dread(dset_id, dtype1_id, dset_dspace_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dread");

            /* Compare data read in */
            for(i = 0; i < dset_elmts; i++) {
                if(i == single_offset[0]) {
                    if(HDstrcmp(rbuf[i].str_id, wdata.str_id)
                            || rbuf[i].str_name
                            || HDstrcmp(rbuf[i].str_desc, wdata.str_desc)
                            || HDstrcmp(rbuf[i].str_orig, wdata.str_orig)
                            || HDstrcmp(rbuf[i].str_stat, wdata.str_stat)
                            || HDstrcmp(rbuf[i].str_form, wdata.str_form)
                            || HDstrcmp(rbuf[i].str_unit, wdata.str_unit)) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i)=%d\n",__LINE__,(int)i);
                        continue;
                    } /* end if */
                } /* end if */
                else {
                    if(HDstrcmp(rbuf[i].str_id, "foobar")
                            || HDstrcmp(rbuf[i].str_name, "")
                            || rbuf[i].str_desc
                            || HDstrcmp(rbuf[i].str_orig,"\0")
                            || HDstrcmp(rbuf[i].str_stat, "dead")
                            || HDstrcmp(rbuf[i].str_form, "liquid")
                            || HDstrcmp(rbuf[i].str_unit, "meter")) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i)=%d\n",__LINE__,(int)i);
                        continue;
                    } /* end if */
                } /* end if */
            } /* end for */

            /* Release the space */
            ret = H5Dvlen_reclaim(dtype1_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dvlen_reclaim");

            /* Clear the read buffer */
            HDmemset(rbuf, 0, dset_elmts * sizeof(dtype1_struct));

            /* Read in non-contiguous selection from dataset */
            ret = H5Dread(dset_id, dtype1_id, dset_select_dspace_id, dset_select_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dread");

            /* Compare data read in */
            for(i = 0; i < dset_elmts; i++) {
                if(i == single_offset[0]) {
                    if(HDstrcmp(rbuf[i].str_id, wdata.str_id)
                            || rbuf[i].str_name
                            || HDstrcmp(rbuf[i].str_desc, wdata.str_desc)
                            || HDstrcmp(rbuf[i].str_orig, wdata.str_orig)
                            || HDstrcmp(rbuf[i].str_stat, wdata.str_stat)
                            || HDstrcmp(rbuf[i].str_form, wdata.str_form)
                            || HDstrcmp(rbuf[i].str_unit, wdata.str_unit)) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i)=%d\n",__LINE__,(int)i);
                        continue;
                    } /* end if */
                } /* end if */
                else {
                    if((i % 2) == select_offset[0]) {
                        if(HDstrcmp(rbuf[i].str_id, "foobar")
                                || HDstrcmp(rbuf[i].str_name, "")
                                || rbuf[i].str_desc
                                || HDstrcmp(rbuf[i].str_orig, "\0")
                                || HDstrcmp(rbuf[i].str_stat, "dead")
                                || HDstrcmp(rbuf[i].str_form, "liquid")
                                || HDstrcmp(rbuf[i].str_unit, "meter")) {
                            TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                            continue;
                        } /* end if */
                    } /* end if */
                    else {
                        if(rbuf[i].str_id || rbuf[i].str_name || rbuf[i].str_desc
                                || rbuf[i].str_orig || rbuf[i].str_stat
                                || rbuf[i].str_form || rbuf[i].str_unit) {
                            TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                            continue;
                        } /* end if */
                    } /* end else */
                } /* end else */
            } /* end for */

            /* Release the space */
            ret = H5Dvlen_reclaim(dtype1_id, dset_select_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dvlen_reclaim");

            ret = H5Dclose(dset_id);
            CHECK(ret, FAIL, "H5Dclose");


            /* Open the second data set to check the value of data */
            dset_id = H5Dopen2(file_id, dset_name2, H5P_DEFAULT);
            CHECK(dset_id, FAIL, "H5Dopen2");

            /* Write one element in the dataset */
            ret = H5Dwrite(dset_id, dtype1_id, scalar_dspace_id, single_dspace_id, xfer_pid, &wdata);
            CHECK(ret, FAIL, "H5Dwrite");

            ret = H5Dread(dset_id, dtype1_id, dset_dspace_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dread");

            /* Compare data read in */
            for(i = 0; i < dset_elmts; i++) {
                if(i == single_offset[0]) {
                    if(HDstrcmp(rbuf[i].str_id, wdata.str_id)
                            || rbuf[i].str_name
                            || HDstrcmp(rbuf[i].str_desc, wdata.str_desc)
                            || HDstrcmp(rbuf[i].str_orig, wdata.str_orig)
                            || HDstrcmp(rbuf[i].str_stat, wdata.str_stat)
                            || HDstrcmp(rbuf[i].str_form, wdata.str_form)
                            || HDstrcmp(rbuf[i].str_unit, wdata.str_unit)) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i)=%d\n",__LINE__,(int)i);
                        continue;
                    } /* end if */
                } /* end if */
                else {
                    if(HDstrcmp(rbuf[i].str_id, "foobar")
                            || HDstrcmp(rbuf[i].str_name, "")
                            || rbuf[i].str_desc
                            || HDstrcmp(rbuf[i].str_orig,"\0")
                            || HDstrcmp(rbuf[i].str_stat, "dead")
                            || HDstrcmp(rbuf[i].str_form, "liquid")
                            || HDstrcmp(rbuf[i].str_unit, "meter")) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i)=%d\n",__LINE__,(int)i);
                        continue;
                    } /* end if */
                } /* end if */
            } /* end for */

            /* Release the space */
            ret = H5Dvlen_reclaim(dtype1_id, dset_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dvlen_reclaim");

            /* Clear the read buffer */
            HDmemset(rbuf, 0, dset_elmts * sizeof(dtype1_struct));

            /* Read in non-contiguous selection from dataset */
            ret = H5Dread(dset_id, dtype1_id, dset_select_dspace_id, dset_select_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dread");

            /* Compare data read in */
            for(i = 0; i < dset_elmts; i++) {
                if(i == single_offset[0]) {
                    if(HDstrcmp(rbuf[i].str_id, wdata.str_id)
                            || rbuf[i].str_name
                            || HDstrcmp(rbuf[i].str_desc, wdata.str_desc)
                            || HDstrcmp(rbuf[i].str_orig, wdata.str_orig)
                            || HDstrcmp(rbuf[i].str_stat, wdata.str_stat)
                            || HDstrcmp(rbuf[i].str_form, wdata.str_form)
                            || HDstrcmp(rbuf[i].str_unit, wdata.str_unit)) {
                        TestErrPrintf("%d: VL data doesn't match!, index(i)=%d\n",__LINE__,(int)i);
                        continue;
                    } /* end if */
                } /* end if */
                else {
                    if((i % 2) == select_offset[0]) {
                        if(HDstrcmp(rbuf[i].str_id, "foobar")
                                || HDstrcmp(rbuf[i].str_name, "")
                                || rbuf[i].str_desc
                                || HDstrcmp(rbuf[i].str_orig, "\0")
                                || HDstrcmp(rbuf[i].str_stat, "dead")
                                || HDstrcmp(rbuf[i].str_form, "liquid")
                                || HDstrcmp(rbuf[i].str_unit, "meter")) {
                            TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                            continue;
                        } /* end if */
                    } /* end if */
                    else {
                        if(rbuf[i].str_id || rbuf[i].str_name || rbuf[i].str_desc
                                || rbuf[i].str_orig || rbuf[i].str_stat
                                || rbuf[i].str_form || rbuf[i].str_unit) {
                            TestErrPrintf("%d: VL data doesn't match!, index(i) = %d\n", __LINE__, (int)i);
                            continue;
                        } /* end if */
                    } /* end else */
                } /* end else */
            } /* end for */

            /* Release the space */
            ret = H5Dvlen_reclaim(dtype1_id, dset_select_dspace_id, xfer_pid, rbuf);
            CHECK(ret, FAIL, "H5Dvlen_reclaim");

            ret = H5Dclose(dset_id);
            CHECK(ret, FAIL, "H5Dclose");

            /* Close the dataspace for the writes */
            ret = H5Sclose(single_dspace_id);
            CHECK(ret, FAIL, "H5Sclose");
        } /* end for */
    } /* end for */

    ret = H5Fclose(file_id);
    CHECK(ret, FAIL, "H5Fclose");


    /* Clean up rest of IDs */
    ret = H5Pclose(xfer_pid);
    CHECK(ret, FAIL, "H5Pclose");

    ret = H5Sclose(small_dspace_id);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(large_dspace_id);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_select_dspace_id);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(large_select_dspace_id);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(scalar_dspace_id);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Tclose(dtype1_id);
    CHECK(ret, FAIL, "H5Tclose");

    /* Release buffer */
    HDfree(rbuf);
} /* end test_vltypes_fill_value() */

/****************************************************************
**
**  test_vltypes(): Main VL datatype testing routine.
**
****************************************************************/
void
test_vltypes(void)
{
    /* Output message about test being performed */
    MESSAGE(5, ("Testing Variable-Length Datatypes\n"));

    /* These next tests use the same file */
    test_vltypes_dataset_create();    /* Check dataset of VL when fill value
                    * won't be rewritten to it.*/
    test_vltypes_funcs();             /* Test functions with VL types */
    test_vltypes_vlen_atomic();       /* Test VL atomic datatypes */
    rewrite_vltypes_vlen_atomic();    /* Check VL memory leak      */
    test_vltypes_vlen_compound();     /* Test VL compound datatypes */
    rewrite_vltypes_vlen_compound();  /* Check VL memory leak      */
    test_vltypes_compound_vlen_atomic(); /* Test compound datatypes with VL atomic components */
    rewrite_vltypes_compound_vlen_atomic();/* Check VL memory leak    */
    test_vltypes_vlen_vlen_atomic();         /* Test VL datatype with VL atomic components */
    rewrite_longer_vltypes_vlen_vlen_atomic();  /*overwrite with VL data of longer sequence*/
    rewrite_shorter_vltypes_vlen_vlen_atomic();  /*overwrite with VL data of shorted sequence*/
    test_vltypes_compound_vlen_vlen();/* Test compound datatypes with VL atomic components */
    test_vltypes_compound_vlstr();    /* Test data rewritten of nested VL data */
    test_vltypes_fill_value();        /* Test fill value for VL data */
}   /* test_vltypes() */


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