[svn-r22866] Description:

    Correct use of 'uint8_t' parameter type in public header file (which was
causing Windows builds to fail).

Tested on:
    Mac OSX/64 10.7.5 (amazon) w/debug
    (too minor to require h5committest)

12 files changed, 184 insertions, 122 deletions

diff --git a/src/H5Pdcpl.c b/src/H5Pdcpl.c
index 7565e8f..b3090ab 100644
--- a/src/H5Pdcpl.c
+++ b/src/H5Pdcpl.c
@@ -126,13 +126,13 @@ static herr_t H5P__dcrt_copy(hid_t new_plist_t, hid_t old_plist_t, void *copy_da
 static herr_t H5P__dcrt_close(hid_t dxpl_id, void *close_data);
 
 /* Property callbacks */
-static herr_t H5P__dcrt_layout_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dcrt_layout_dec(const uint8_t **pp, void *value);
+static herr_t H5P__dcrt_layout_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dcrt_layout_dec(const void **pp, void *value);
 static int H5P__dcrt_layout_cmp(const void *value1, const void *value2, size_t size);
-static herr_t H5P__fill_value_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__fill_value_dec(const uint8_t **pp, void *value);
-static herr_t H5P__dcrt_ext_file_list_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dcrt_ext_file_list_dec(const uint8_t **pp, void *value);
+static herr_t H5P__fill_value_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__fill_value_dec(const void **pp, void *value);
+static herr_t H5P__dcrt_ext_file_list_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dcrt_ext_file_list_dec(const void **pp, void *value);
 static int H5P__dcrt_ext_file_list_cmp(const void *value1, const void *value2, size_t size);
 
 
@@ -414,9 +414,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dcrt_layout_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dcrt_layout_enc(const void *value, void **_pp, size_t *size)
 {
     const H5O_layout_t *layout = (const H5O_layout_t *)value; /* Create local aliases for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -471,11 +472,12 @@ H5P__dcrt_layout_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dcrt_layout_dec(const uint8_t **pp, void *value)
+H5P__dcrt_layout_dec(const void **_pp, void *value)
 {
     const H5O_layout_t *layout;         /* Storage layout */
     H5O_layout_t chunk_layout;          /* Layout structure for chunk info */
     H5D_layout_t type;                  /* Layout type */
+    const uint8_t **pp = (const uint8_t **)_pp;
     herr_t ret_value = SUCCEED;         /* Return value */
 
     FUNC_ENTER_STATIC
@@ -627,11 +629,12 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__fill_value_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__fill_value_enc(const void *value, void **_pp, size_t *size)
 {
     const H5O_fill_t *fill = (const H5O_fill_t *)value; /* Create local aliases for values */
     size_t   dt_size = 0;                 /* Size of encoded datatype */
     herr_t ret_value = SUCCEED;         /* Return value */
+    uint8_t **pp = (uint8_t **)_pp;
     uint64_t enc_value;
     unsigned enc_size;
 
@@ -721,9 +724,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__fill_value_dec(const uint8_t **pp, void *_value)
+H5P__fill_value_dec(const void **_pp, void *_value)
 {
     H5O_fill_t *fill = (H5O_fill_t *)_value;   /* Fill value */
+    const uint8_t **pp = (const uint8_t **)_pp;
     herr_t ret_value = SUCCEED;       /* Return value */
 
     FUNC_ENTER_STATIC
@@ -848,11 +852,12 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dcrt_ext_file_list_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dcrt_ext_file_list_enc(const void *value, void **_pp, size_t *size)
 {
     const H5O_efl_t *efl = (const H5O_efl_t *)value; /* Create local aliases for values */
     size_t len = 0;                     /* String length of slot name */
     size_t u;                           /* Local index variable */
+    uint8_t **pp = (uint8_t **)_pp;
     unsigned enc_size;
     uint64_t enc_value;
 
@@ -933,9 +938,10 @@ H5P__dcrt_ext_file_list_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dcrt_ext_file_list_dec(const uint8_t **pp, void *_value)
+H5P__dcrt_ext_file_list_dec(const void **_pp, void *_value)
 {
     H5O_efl_t *efl = (H5O_efl_t *)_value;  /* External file list */
+    const uint8_t **pp = (const uint8_t **)_pp;
     size_t u, nused;
     unsigned enc_size;
     uint64_t enc_value;
diff --git a/src/H5Pdxpl.c b/src/H5Pdxpl.c
index d4218fe..04ff54a 100644
--- a/src/H5Pdxpl.c
+++ b/src/H5Pdxpl.c
@@ -177,20 +177,20 @@
 static herr_t H5P__dxfr_reg_prop(H5P_genclass_t *pclass);
 
 /* Property list callbacks */
-static herr_t H5P__dxfr_bkgr_buf_type_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dxfr_bkgr_buf_type_dec(const uint8_t **pp, void *value);
-static herr_t H5P__dxfr_btree_split_ratio_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dxfr_btree_split_ratio_dec(const uint8_t **pp, void *value);
-static herr_t H5P__dxfr_io_xfer_mode_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dxfr_io_xfer_mode_dec(const uint8_t **pp, void *value);
-static herr_t H5P__dxfr_mpio_collective_opt_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dxfr_mpio_collective_opt_dec(const uint8_t **pp, void *value);
-static herr_t H5P__dxfr_mpio_chunk_opt_hard_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dxfr_mpio_chunk_opt_hard_dec(const uint8_t **pp, void *value);
-static herr_t H5P__dxfr_edc_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dxfr_edc_dec(const uint8_t **pp, void *value);
-static herr_t H5P__dxfr_xform_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__dxfr_xform_dec(const uint8_t **pp, void *value);
+static herr_t H5P__dxfr_bkgr_buf_type_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dxfr_bkgr_buf_type_dec(const void **pp, void *value);
+static herr_t H5P__dxfr_btree_split_ratio_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dxfr_btree_split_ratio_dec(const void **pp, void *value);
+static herr_t H5P__dxfr_io_xfer_mode_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dxfr_io_xfer_mode_dec(const void **pp, void *value);
+static herr_t H5P__dxfr_mpio_collective_opt_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dxfr_mpio_collective_opt_dec(const void **pp, void *value);
+static herr_t H5P__dxfr_mpio_chunk_opt_hard_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dxfr_mpio_chunk_opt_hard_dec(const void **pp, void *value);
+static herr_t H5P__dxfr_edc_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dxfr_edc_dec(const void **pp, void *value);
+static herr_t H5P__dxfr_xform_enc(const void *value, void **pp, size_t *size);
+static herr_t H5P__dxfr_xform_dec(const void **pp, void *value);
 static herr_t H5P__dxfr_xform_del(hid_t prop_id, const char* name, size_t size, void* value);
 static herr_t H5P__dxfr_xform_copy(const char* name, size_t size, void* value);
 static int H5P__dxfr_xform_cmp(const void *value1, const void *value2, size_t size);
@@ -447,9 +447,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_bkgr_buf_type_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dxfr_bkgr_buf_type_enc(const void *value, void **_pp, size_t *size)
 {
     const H5T_bkg_t *bkgr_buf_type = (const H5T_bkg_t *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -484,9 +485,10 @@ H5P__dxfr_bkgr_buf_type_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_bkgr_buf_type_dec(const uint8_t **pp, void *_value)
+H5P__dxfr_bkgr_buf_type_dec(const void **_pp, void *_value)
 {
     H5T_bkg_t *bkgr_buf_type = (H5T_bkg_t *)_value;     /* Background buffer type */
+    const uint8_t **pp = (const uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -518,9 +520,10 @@ H5P__dxfr_bkgr_buf_type_dec(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_btree_split_ratio_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dxfr_btree_split_ratio_enc(const void *value, void **_pp, size_t *size)
 {
     const double *btree_split_ratio = (const double *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -567,10 +570,11 @@ H5P__dxfr_btree_split_ratio_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_btree_split_ratio_dec(const uint8_t **pp, void *_value)
+H5P__dxfr_btree_split_ratio_dec(const void **_pp, void *_value)
 {
     double *btree_split_ratio = (double *)_value;        /* B-tree split ratio */
     unsigned enc_size;                  /* Size of encoded property */
+    const uint8_t **pp = (const uint8_t **)_pp;
     herr_t ret_value = SUCCEED;         /* Return value */
 
     FUNC_ENTER_STATIC
@@ -611,11 +615,12 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_xform_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dxfr_xform_enc(const void *value, void **_pp, size_t *size)
 {
     const H5Z_data_xform_t *data_xform_prop = *(const H5Z_data_xform_t * const *)value; /* Create local alias for values */
     const char *pexp = NULL;            /* Pointer to transform expression */
     size_t	len = 0;                /* Length of transform expression */
+    uint8_t **pp = (uint8_t **)_pp;
     herr_t ret_value = SUCCEED;         /* Return value */
 
     FUNC_ENTER_STATIC
@@ -682,10 +687,11 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_xform_dec(const uint8_t **pp, void *_value)
+H5P__dxfr_xform_dec(const void **_pp, void *_value)
 {
     H5Z_data_xform_t **data_xform_prop = (H5Z_data_xform_t **)_value;    /* New data xform property */
     size_t len;                         /* Length of encoded string */
+    const uint8_t **pp = (const uint8_t **)_pp;
     unsigned enc_size;
     uint64_t enc_value;
     herr_t ret_value = SUCCEED;         /* Return value */
@@ -1702,9 +1708,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_io_xfer_mode_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dxfr_io_xfer_mode_enc(const void *value, void **_pp, size_t *size)
 {
     const H5FD_mpio_xfer_t *xfer_mode = (const H5FD_mpio_xfer_t *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -1739,9 +1746,10 @@ H5P__dxfr_io_xfer_mode_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_io_xfer_mode_dec(const uint8_t **pp, void *_value)
+H5P__dxfr_io_xfer_mode_dec(const void **_pp, void *_value)
 {
     H5FD_mpio_xfer_t *xfer_mode = (H5FD_mpio_xfer_t *)_value;         /* I/O transfer mode */
+    const uint8_t **pp = (const uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -1773,9 +1781,10 @@ H5P__dxfr_io_xfer_mode_dec(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_mpio_collective_opt_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dxfr_mpio_collective_opt_enc(const void *value, void **_pp, size_t *size)
 {
     const H5FD_mpio_collective_opt_t *coll_opt = (const H5FD_mpio_collective_opt_t *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -1810,9 +1819,10 @@ H5P__dxfr_mpio_collective_opt_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_mpio_collective_opt_dec(const uint8_t **pp, void *_value)
+H5P__dxfr_mpio_collective_opt_dec(const void **_pp, void *_value)
 {
     H5FD_mpio_collective_opt_t *coll_opt = (H5FD_mpio_collective_opt_t *)_value;         /* MPI-I/O collective optimization mode */
+    const uint8_t **pp = (const uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -1844,9 +1854,10 @@ H5P__dxfr_mpio_collective_opt_dec(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_mpio_chunk_opt_hard_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dxfr_mpio_chunk_opt_hard_enc(const void *value, void **_pp, size_t *size)
 {
     const H5FD_mpio_chunk_opt_t *chunk_opt = (const H5FD_mpio_chunk_opt_t *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -1881,9 +1892,10 @@ H5P__dxfr_mpio_chunk_opt_hard_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_mpio_chunk_opt_hard_dec(const uint8_t **pp, void *_value)
+H5P__dxfr_mpio_chunk_opt_hard_dec(const void **_pp, void *_value)
 {
     H5FD_mpio_chunk_opt_t *chunk_opt = (H5FD_mpio_chunk_opt_t *)_value;         /* MPI-I/O chunk optimization mode */
+    const uint8_t **pp = (const uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -2027,9 +2039,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_edc_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__dxfr_edc_enc(const void *value, void **_pp, size_t *size)
 {
     const H5Z_EDC_t *check = (const H5Z_EDC_t *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -2064,9 +2077,10 @@ H5P__dxfr_edc_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__dxfr_edc_dec(const uint8_t **pp, void *_value)
+H5P__dxfr_edc_dec(const void **_pp, void *_value)
 {
     H5Z_EDC_t *check = (H5Z_EDC_t *)_value;         /* EDC property */
+    const uint8_t **pp = (const uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
diff --git a/src/H5Pencdec.c b/src/H5Pencdec.c
index 11439db..ff148b0 100644
--- a/src/H5Pencdec.c
+++ b/src/H5Pencdec.c
@@ -54,7 +54,7 @@
 typedef struct {
     hbool_t encode;             /* Whether the property list should be encoded */
     size_t *enc_size_ptr;       /* Pointer to size of encoded buffer */
-    uint8_t **pp;               /* Pointer to encoding buffer pointer */
+    void **pp;               /* Pointer to encoding buffer pointer */
 } H5P_enc_iter_ud_t;
 
 
@@ -114,9 +114,10 @@ H5P_init_encdec_interface(void)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__encode_size_t(const void *value, uint8_t **pp, size_t *size)
+H5P__encode_size_t(const void *value, void **_pp, size_t *size)
 {
     uint64_t enc_value = (uint64_t)*(const size_t *)value;    /* Property value to encode */
+    uint8_t **pp = (uint8_t **)_pp;
     unsigned enc_size = H5V_limit_enc_size(enc_value);  /* Size of encoded property */
 
     FUNC_ENTER_PACKAGE_NOERR
@@ -155,10 +156,11 @@ H5P__encode_size_t(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__encode_hsize_t(const void *value, uint8_t **pp, size_t *size)
+H5P__encode_hsize_t(const void *value, void **_pp, size_t *size)
 {
     uint64_t enc_value = (uint64_t)*(const hsize_t *)value;    /* Property value to encode */
     unsigned enc_size = H5V_limit_enc_size(enc_value);  /* Size of encoded property */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_PACKAGE_NOERR
 
@@ -195,8 +197,10 @@ H5P__encode_hsize_t(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__encode_unsigned(const void *value, uint8_t **pp, size_t *size)
+H5P__encode_unsigned(const void *value, void **_pp, size_t *size)
 {
+    uint8_t **pp = (uint8_t **)_pp;
+
     FUNC_ENTER_PACKAGE_NOERR
 
     /* Sanity checks */
@@ -232,8 +236,10 @@ H5P__encode_unsigned(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__encode_uint8_t(const void *value, uint8_t **pp, size_t *size)
+H5P__encode_uint8_t(const void *value, void **_pp, size_t *size)
 {
+    uint8_t **pp = (uint8_t **)_pp;
+
     FUNC_ENTER_PACKAGE_NOERR
 
     /* Sanity checks */
@@ -266,8 +272,10 @@ H5P__encode_uint8_t(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__encode_hbool_t(const void *value, uint8_t **pp, size_t *size)
+H5P__encode_hbool_t(const void *value, void **_pp, size_t *size)
 {
+    uint8_t **pp = (uint8_t **)_pp;
+
     FUNC_ENTER_PACKAGE_NOERR
 
     /* Sanity checks */
@@ -299,8 +307,10 @@ H5P__encode_hbool_t(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__encode_double(const void *value, uint8_t **pp, size_t *size)
+H5P__encode_double(const void *value, void **_pp, size_t *size)
 {
+    uint8_t **pp = (uint8_t **)_pp;
+
     FUNC_ENTER_PACKAGE_NOERR
 
     /* Sanity checks */
@@ -363,7 +373,7 @@ H5P__encode_cb(H5P_genprop_t *prop, void *_udata)
         prop_name_len = HDstrlen(prop->name) + 1;
         if(udata->encode) {
             HDstrncpy((char *)*(udata->pp), prop->name, prop_name_len);
-            *(udata->pp) += prop_name_len;
+            *(uint8_t **)(udata->pp) += prop_name_len;
         } /* end if */
         *(udata->enc_size_ptr) += prop_name_len;
 
@@ -438,7 +448,7 @@ H5P__encode(const H5P_genplist_t *plist, hbool_t enc_all_prop, void *buf,
     /* Initialize user data for iteration callback */
     udata.encode = encode;
     udata.enc_size_ptr = &encode_size;
-    udata.pp = &p;
+    udata.pp = (void **)&p;
 
     /* Iterate over all properties in property list, encoding them */
     idx = 0;
@@ -472,9 +482,10 @@ done:
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__decode_size_t(const uint8_t **pp, void *_value)
+H5P__decode_size_t(const void **_pp, void *_value)
 {
     size_t *value = (size_t *)_value;   /* Property value to return */
+    const uint8_t **pp = (const uint8_t **)_pp;
     uint64_t enc_value;                 /* Decoded property value */
     unsigned enc_size;                  /* Size of encoded property */
 
@@ -512,9 +523,10 @@ H5P__decode_size_t(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__decode_hsize_t(const uint8_t **pp, void *_value)
+H5P__decode_hsize_t(const void **_pp, void *_value)
 {
     hsize_t *value = (hsize_t *)_value; /* Property value to return */
+    const uint8_t **pp = (const uint8_t **)_pp;
     uint64_t enc_value;                 /* Decoded property value */
     unsigned enc_size;                  /* Size of encoded property */
 
@@ -552,9 +564,10 @@ H5P__decode_hsize_t(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__decode_unsigned(const uint8_t **pp, void *_value)
+H5P__decode_unsigned(const void **_pp, void *_value)
 {
     unsigned *value = (unsigned *)_value; /* Property value to return */
+    const uint8_t **pp = (const uint8_t **)_pp;
     unsigned enc_size;          /* Size of encoded property */
     herr_t ret_value = SUCCEED; /* Return value */
 
@@ -591,9 +604,10 @@ done:
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__decode_uint8_t(const uint8_t **pp, void *_value)
+H5P__decode_uint8_t(const void **_pp, void *_value)
 {
     uint8_t *value = (uint8_t *)_value; /* Property value to return */
+    const uint8_t **pp = (const uint8_t **)_pp;
     herr_t ret_value = SUCCEED; /* Return value */
 
     FUNC_ENTER_PACKAGE_NOERR
@@ -624,9 +638,10 @@ H5P__decode_uint8_t(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__decode_hbool_t(const uint8_t **pp, void *_value)
+H5P__decode_hbool_t(const void **_pp, void *_value)
 {
     hbool_t *value = (hbool_t *)_value; /* Property value to return */
+    const uint8_t **pp = (const uint8_t **)_pp;
     herr_t ret_value = SUCCEED; /* Return value */
 
     FUNC_ENTER_PACKAGE_NOERR
@@ -657,9 +672,10 @@ H5P__decode_hbool_t(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5P__decode_double(const uint8_t **pp, void *_value)
+H5P__decode_double(const void **_pp, void *_value)
 {
     double *value = (double *)_value; /* Property value to return */
+    const uint8_t **pp = (const uint8_t **)_pp;
     unsigned enc_size;          /* Size of encoded property */
     herr_t ret_value = SUCCEED; /* Return value */
 
@@ -767,7 +783,7 @@ H5P__decode(const void *buf)
 
         /* Decode serialized value */
         if(prop->decode) {
-            if((prop->decode)(&p, value_buf) < 0)
+            if((prop->decode)((const void **)&p, value_buf) < 0)
                 HGOTO_ERROR(H5E_PLIST, H5E_CANTDECODE, FAIL, "property decoding routine failed, property: '%s'", name)
         } /* end if */
         else
diff --git a/src/H5Pfapl.c b/src/H5Pfapl.c
index 35752c4..4faed4f 100644
--- a/src/H5Pfapl.c
+++ b/src/H5Pfapl.c
@@ -187,13 +187,13 @@ static herr_t H5P_file_image_info_copy(const char *name, size_t size, void *valu
 static herr_t H5P_file_image_info_close(const char *name, size_t size, void *value);
 
 /* encode & decode callbacks */
-static herr_t H5P__facc_cache_config_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__facc_cache_config_dec(const uint8_t **pp, void *value);
+static herr_t H5P__facc_cache_config_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__facc_cache_config_dec(const void **_pp, void *value);
 static int H5P__facc_cache_config_cmp(const void *value1, const void *value2, size_t size);
-static herr_t H5P__facc_fclose_degree_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__facc_fclose_degree_dec(const uint8_t **pp, void *value);
-static herr_t H5P__facc_multi_type_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__facc_multi_type_dec(const uint8_t **pp, void *value);
+static herr_t H5P__facc_fclose_degree_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__facc_fclose_degree_dec(const void **pp, void *value);
+static herr_t H5P__facc_multi_type_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__facc_multi_type_dec(const void **_pp, void *value);
 
 
 /*********************/
@@ -2571,9 +2571,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__facc_cache_config_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__facc_cache_config_enc(const void *value, void **_pp, size_t *size)
 {
     const H5AC_cache_config_t *config = (const H5AC_cache_config_t *)value; /* Create local aliases for values */
+    uint8_t **pp = (uint8_t **)_pp;
     unsigned enc_size;      /* Size of encoded property */
     uint64_t enc_value;         /* Property to encode */
 
@@ -2715,9 +2716,10 @@ H5P__facc_cache_config_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__facc_cache_config_dec(const uint8_t **pp, void *_value)
+H5P__facc_cache_config_dec(const void **_pp, void *_value)
 {
     H5AC_cache_config_t *config = (H5AC_cache_config_t *)_value;
+    const uint8_t **pp = (const uint8_t **)_pp;
     unsigned enc_size;
     uint64_t enc_value;
     herr_t ret_value = SUCCEED;         /* Return value */
@@ -2849,9 +2851,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__facc_fclose_degree_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__facc_fclose_degree_enc(const void *value, void **_pp, size_t *size)
 {
     const H5F_close_degree_t *fclose_degree = (const H5F_close_degree_t *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -2886,9 +2889,10 @@ H5P__facc_fclose_degree_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__facc_fclose_degree_dec(const uint8_t **pp, void *_value)
+H5P__facc_fclose_degree_dec(const void **_pp, void *_value)
 {
     H5F_close_degree_t *fclose_degree = (H5F_close_degree_t *)_value;            /* File close degree */
+    const uint8_t **pp = (const uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -2920,9 +2924,10 @@ H5P__facc_fclose_degree_dec(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__facc_multi_type_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__facc_multi_type_enc(const void *value, void **_pp, size_t *size)
 {
     const H5FD_mem_t *type = (const H5FD_mem_t *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -2957,9 +2962,10 @@ H5P__facc_multi_type_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__facc_multi_type_dec(const uint8_t **pp, void *_value)
+H5P__facc_multi_type_dec(const void **_pp, void *_value)
 {
     H5FD_mem_t *type = (H5FD_mem_t *)_value;            /* File close degree */
+    const uint8_t **pp = (const uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
diff --git a/src/H5Pfcpl.c b/src/H5Pfcpl.c
index 0876840..3eb9c5b 100644
--- a/src/H5Pfcpl.c
+++ b/src/H5Pfcpl.c
@@ -124,12 +124,12 @@
 static herr_t H5P_fcrt_reg_prop(H5P_genclass_t *pclass);
 
 /* property callbacks */
-static herr_t H5P__fcrt_btree_rank_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__fcrt_btree_rank_dec(const uint8_t **pp, void *value);
-static herr_t H5P__fcrt_shmsg_index_types_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__fcrt_shmsg_index_types_dec(const uint8_t **pp, void *value);
-static herr_t H5P__fcrt_shmsg_index_minsize_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__fcrt_shmsg_index_minsize_dec(const uint8_t **pp, void *value);
+static herr_t H5P__fcrt_btree_rank_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__fcrt_btree_rank_dec(const void **_pp, void *value);
+static herr_t H5P__fcrt_shmsg_index_types_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__fcrt_shmsg_index_types_dec(const void **_pp, void *value);
+static herr_t H5P__fcrt_shmsg_index_minsize_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__fcrt_shmsg_index_minsize_dec(const void **_pp, void *value);
 
 
 /*********************/
@@ -689,9 +689,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__fcrt_btree_rank_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__fcrt_btree_rank_enc(const void *value, void **_pp, size_t *size)
 {
     const unsigned *btree_k = (const unsigned *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -735,9 +736,10 @@ H5P__fcrt_btree_rank_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__fcrt_btree_rank_dec(const uint8_t **pp, void *_value)
+H5P__fcrt_btree_rank_dec(const void **_pp, void *_value)
 {
     unsigned *btree_k = (unsigned *)_value;
+    const uint8_t **pp = (const uint8_t **)_pp;
     unsigned enc_size;                  /* Size of encoded property */
     unsigned u;                         /* Local index variable */
     herr_t ret_value = SUCCEED;         /* Return value */
@@ -978,9 +980,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__fcrt_shmsg_index_types_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__fcrt_shmsg_index_types_enc(const void *value, void **_pp, size_t *size)
 {
     const unsigned *type_flags = (const unsigned *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -1025,9 +1028,10 @@ H5P__fcrt_shmsg_index_types_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__fcrt_shmsg_index_types_dec(const uint8_t **pp, void *_value)
+H5P__fcrt_shmsg_index_types_dec(const void **_pp, void *_value)
 {
     unsigned *type_flags = (unsigned *)_value;
+    const uint8_t **pp = (const uint8_t **)_pp;
     unsigned enc_size;                  /* Size of encoded property */
     unsigned u;                         /* Local index variable */
     herr_t ret_value = SUCCEED;         /* Return value */
@@ -1069,9 +1073,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__fcrt_shmsg_index_minsize_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__fcrt_shmsg_index_minsize_enc(const void *value, void **_pp, size_t *size)
 {
     const unsigned *minsizes = (const unsigned *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -1116,9 +1121,10 @@ H5P__fcrt_shmsg_index_minsize_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__fcrt_shmsg_index_minsize_dec(const uint8_t **pp, void *_value)
+H5P__fcrt_shmsg_index_minsize_dec(const void **_pp, void *_value)
 {
     unsigned *minsizes = (unsigned *)_value;
+    const uint8_t **pp = (const uint8_t **)_pp;
     unsigned enc_size;                  /* Size of encoded property */
     unsigned u;                         /* Local index variable */
     herr_t ret_value = SUCCEED;         /* Return value */
diff --git a/src/H5Pgcpl.c b/src/H5Pgcpl.c
index 2bac037..0210700 100644
--- a/src/H5Pgcpl.c
+++ b/src/H5Pgcpl.c
@@ -67,10 +67,10 @@
 static herr_t H5P__gcrt_reg_prop(H5P_genclass_t *pclass);
 
 /* Property callbacks */
-static herr_t H5P__gcrt_group_info_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__gcrt_group_info_dec(const uint8_t **pp, void *value);
-static herr_t H5P__gcrt_link_info_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__gcrt_link_info_dec(const uint8_t **pp, void *value);
+static herr_t H5P__gcrt_group_info_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__gcrt_group_info_dec(const void **_pp, void *value);
+static herr_t H5P__gcrt_link_info_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__gcrt_link_info_dec(const void **_pp, void *value);
 
 
 /*********************/
@@ -541,9 +541,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t 
-H5P__gcrt_group_info_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__gcrt_group_info_enc(const void *value, void **_pp, size_t *size)
 {
     const H5O_ginfo_t *ginfo = (const H5O_ginfo_t *)value; /* Create local aliases for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -577,9 +578,10 @@ H5P__gcrt_group_info_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t 
-H5P__gcrt_group_info_dec(const uint8_t **pp, void *_value)
+H5P__gcrt_group_info_dec(const void **_pp, void *_value)
 {
     H5O_ginfo_t *ginfo = (H5O_ginfo_t *)_value;     /* Group info settings */
+    const uint8_t **pp = (const uint8_t **)_pp;
     herr_t ret_value = SUCCEED;         /* Return value */
 
     FUNC_ENTER_STATIC_NOERR
@@ -626,9 +628,10 @@ H5P__gcrt_group_info_dec(const uint8_t **pp, void *_value)
  *-------------------------------------------------------------------------
  */
 static herr_t 
-H5P__gcrt_link_info_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__gcrt_link_info_enc(const void *value, void **_pp, size_t *size)
 {
     const H5O_linfo_t *linfo = (const H5O_linfo_t *)value; /* Create local aliases for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -667,9 +670,10 @@ H5P__gcrt_link_info_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t 
-H5P__gcrt_link_info_dec(const uint8_t **pp, void *_value)
+H5P__gcrt_link_info_dec(const void **_pp, void *_value)
 {
     H5O_linfo_t *linfo = (H5O_linfo_t *)_value;  /* Link info settings */
+    const uint8_t **pp = (const uint8_t **)_pp;
     unsigned crt_order_flags;
     unsigned enc_size;
     herr_t ret_value = SUCCEED;                 /* Return value */
diff --git a/src/H5Plapl.c b/src/H5Plapl.c
index e6bdaae..aa02546 100644
--- a/src/H5Plapl.c
+++ b/src/H5Plapl.c
@@ -101,14 +101,14 @@
 static herr_t H5P_lacc_reg_prop(H5P_genclass_t *pclass);
 
 /* Property list callbacks */
-static herr_t H5P_lacc_elink_pref_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P_lacc_elink_pref_dec(const uint8_t **pp, void *value);
+static herr_t H5P_lacc_elink_pref_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P_lacc_elink_pref_dec(const void **_pp, void *value);
 static herr_t H5P_lacc_elink_pref_del(hid_t prop_id, const char* name, size_t size, void* value);
 static herr_t H5P_lacc_elink_pref_copy(const char* name, size_t size, void* value);
 static int H5P_lacc_elink_pref_cmp(const void *value1, const void *value2, size_t size);
 static herr_t H5P_lacc_elink_pref_close(const char* name, size_t size, void* value);
-static herr_t H5P_lacc_elink_fapl_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P_lacc_elink_fapl_dec(const uint8_t **pp, void *value);
+static herr_t H5P_lacc_elink_fapl_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P_lacc_elink_fapl_dec(const void **_pp, void *value);
 static herr_t H5P_lacc_elink_fapl_del(hid_t prop_id, const char* name, size_t size, void* value);
 static herr_t H5P_lacc_elink_fapl_copy(const char* name, size_t size, void* value);
 static int H5P_lacc_elink_fapl_cmp(const void *value1, const void *value2, size_t size);
@@ -228,9 +228,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P_lacc_elink_fapl_enc(const void *value, uint8_t **pp, size_t *size)
+H5P_lacc_elink_fapl_enc(const void *value, void **_pp, size_t *size)
 {
     const hid_t *elink_fapl = (const hid_t *)value;     /* Property to encode */
+    uint8_t **pp = (uint8_t **)_pp;
     H5P_genplist_t *fapl_plist;         /* Pointer to property list */
     hbool_t non_default_fapl = FALSE;   /* Whether the FAPL is non-default */
     size_t enc_size = 0;                /* FAPL's encoded size */
@@ -282,9 +283,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P_lacc_elink_fapl_dec(const uint8_t **pp, void *_value)
+H5P_lacc_elink_fapl_dec(const void **_pp, void *_value)
 {
     hid_t *elink_fapl = (hid_t *)_value;        /* The elink FAPL value */
+    const uint8_t **pp = (const uint8_t **)_pp;
     hbool_t non_default_fapl;           /* Whether the FAPL is non-default */
     herr_t ret_value = SUCCEED;         /* Return value */
 
@@ -495,9 +497,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P_lacc_elink_pref_enc(const void *value, uint8_t **pp, size_t *size)
+H5P_lacc_elink_pref_enc(const void *value, void **_pp, size_t *size)
 {
     const char *elink_pref = *(const char * const *)value;
+    uint8_t **pp = (uint8_t **)_pp;
     size_t len = 0;
     uint64_t enc_value;
     unsigned enc_size;
@@ -550,9 +553,10 @@ H5P_lacc_elink_pref_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P_lacc_elink_pref_dec(const uint8_t **pp, void *_value)
+H5P_lacc_elink_pref_dec(const void **_pp, void *_value)
 {
     char **elink_pref = (char **)_value;
+    const uint8_t **pp = (const uint8_t **)_pp;
     size_t len;
     uint64_t enc_value;                 /* Decoded property value */
     unsigned enc_size;                  /* Size of encoded property */
diff --git a/src/H5Pocpl.c b/src/H5Pocpl.c
index ba79da3..6e20963 100644
--- a/src/H5Pocpl.c
+++ b/src/H5Pocpl.c
@@ -86,8 +86,8 @@ static herr_t H5P__ocrt_copy(hid_t new_plist_t, hid_t old_plist_t, void *copy_da
 static herr_t H5P__ocrt_close(hid_t dxpl_id, void *close_data);
 
 /* Property callbacks */
-static herr_t H5P__ocrt_pipeline_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__ocrt_pipeline_dec(const uint8_t **pp, void *value);
+static herr_t H5P__ocrt_pipeline_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__ocrt_pipeline_dec(const void **_pp, void *value);
 static int H5P__ocrt_pipeline_cmp(const void *value1, const void *value2, size_t size);
 
 
@@ -1366,9 +1366,10 @@ H5P_get_filter(const H5Z_filter_info_t *filter, unsigned int *flags/*out*/,
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__ocrt_pipeline_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__ocrt_pipeline_enc(const void *value, void **_pp, size_t *size)
 {
     const H5O_pline_t *pline = (const H5O_pline_t *)value;
+    uint8_t **pp = (uint8_t **)_pp;
     size_t u;           /* Local index variable */
 
     FUNC_ENTER_STATIC_NOERR
@@ -1458,9 +1459,10 @@ H5P__ocrt_pipeline_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t 
-H5P__ocrt_pipeline_dec(const uint8_t **pp, void *_value)
+H5P__ocrt_pipeline_dec(const void **_pp, void *_value)
 {
     H5O_pline_t *pline = (H5O_pline_t *)_value;   /* Property to set */
+    const uint8_t **pp = (const uint8_t **)_pp;
     size_t nused;                       /* Number of filters used for pipeline */
     unsigned enc_size;                  /* Size of encoded value (in bytes) */
     uint64_t enc_value;                 /* Value to encode */
diff --git a/src/H5Pocpypl.c b/src/H5Pocpypl.c
index d2734b0..e5e5f51 100644
--- a/src/H5Pocpypl.c
+++ b/src/H5Pocpypl.c
@@ -85,8 +85,8 @@ static H5O_copy_dtype_merge_list_t *H5P__free_merge_comm_dtype_list(H5O_copy_dty
 static herr_t H5P__ocpy_reg_prop(H5P_genclass_t *pclass);
 
 /* Property callbacks */
-static herr_t H5P__ocpy_merge_comm_dt_list_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__ocpy_merge_comm_dt_list_dec(const uint8_t **pp, void *value);
+static herr_t H5P__ocpy_merge_comm_dt_list_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__ocpy_merge_comm_dt_list_dec(const void **_pp, void *value);
 static herr_t H5P__ocpy_merge_comm_dt_list_copy(const char* name, size_t size, void* value);
 static int H5P__ocpy_merge_comm_dt_list_cmp(const void *value1, const void *value2, size_t size);
 static herr_t H5P__ocpy_merge_comm_dt_list_close(const char* name, size_t size, void* value);
@@ -219,9 +219,10 @@ H5P__free_merge_comm_dtype_list(H5O_copy_dtype_merge_list_t *dt_list)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__ocpy_merge_comm_dt_list_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__ocpy_merge_comm_dt_list_enc(const void *value, void **_pp, size_t *size)
 {
     const H5O_copy_dtype_merge_list_t * const *dt_list_ptr = (const H5O_copy_dtype_merge_list_t * const *)value;
+    uint8_t **pp = (uint8_t **)_pp;
     const H5O_copy_dtype_merge_list_t *dt_list;         /* Pointer to merge named datatype list */
     size_t len;                                 /* Length of path component */
 
@@ -276,9 +277,10 @@ H5P__ocpy_merge_comm_dt_list_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t 
-H5P__ocpy_merge_comm_dt_list_dec(const uint8_t **pp, void *_value)
+H5P__ocpy_merge_comm_dt_list_dec(const void **_pp, void *_value)
 {
     H5O_copy_dtype_merge_list_t **dt_list = (H5O_copy_dtype_merge_list_t **)_value;        /* Pointer to merge named datatype list */
+    const uint8_t **pp = (const uint8_t **)_pp;
     H5O_copy_dtype_merge_list_t *dt_list_tail = NULL, *tmp_dt_list = NULL; /* temporary merge named datatype lists */
     size_t len;                         /* Length of path component */
     herr_t ret_value = SUCCEED;         /* Return value */
diff --git a/src/H5Ppkg.h b/src/H5Ppkg.h
index b4c2405..9d48c60 100644
--- a/src/H5Ppkg.h
+++ b/src/H5Ppkg.h
@@ -207,18 +207,18 @@ H5_DLL hid_t H5P__new_plist_of_type(H5P_plist_type_t type);
 H5_DLL herr_t H5P__encode(const H5P_genplist_t *plist, hbool_t enc_all_prop,
     void *buf, size_t *nalloc);
 H5_DLL hid_t H5P__decode(const void *buf);
-H5_DLL herr_t H5P__encode_hsize_t(const void *value, uint8_t **pp, size_t *size);
-H5_DLL herr_t H5P__encode_size_t(const void *value, uint8_t **pp, size_t *size);
-H5_DLL herr_t H5P__encode_unsigned(const void *value, uint8_t **pp, size_t *size);
-H5_DLL herr_t H5P__encode_uint8_t(const void *value, uint8_t **pp, size_t *size);
-H5_DLL herr_t H5P__encode_hbool_t(const void *value, uint8_t **pp, size_t *size);
-H5_DLL herr_t H5P__encode_double(const void *value, uint8_t **pp, size_t *size);
-H5_DLL herr_t H5P__decode_hsize_t(const uint8_t **pp, void *value);
-H5_DLL herr_t H5P__decode_size_t(const uint8_t **pp, void *value);
-H5_DLL herr_t H5P__decode_unsigned(const uint8_t **pp, void *value);
-H5_DLL herr_t H5P__decode_uint8_t(const uint8_t **pp, void *value);
-H5_DLL herr_t H5P__decode_hbool_t(const uint8_t **pp, void *value);
-H5_DLL herr_t H5P__decode_double(const uint8_t **pp, void *value);
+H5_DLL herr_t H5P__encode_hsize_t(const void *value, void **_pp, size_t *size);
+H5_DLL herr_t H5P__encode_size_t(const void *value, void **_pp, size_t *size);
+H5_DLL herr_t H5P__encode_unsigned(const void *value, void **_pp, size_t *size);
+H5_DLL herr_t H5P__encode_uint8_t(const void *value, void **_pp, size_t *size);
+H5_DLL herr_t H5P__encode_hbool_t(const void *value, void **_pp, size_t *size);
+H5_DLL herr_t H5P__encode_double(const void *value, void **_pp, size_t *size);
+H5_DLL herr_t H5P__decode_hsize_t(const void **_pp, void *value);
+H5_DLL herr_t H5P__decode_size_t(const void **_pp, void *value);
+H5_DLL herr_t H5P__decode_unsigned(const void **_pp, void *value);
+H5_DLL herr_t H5P__decode_uint8_t(const void **_pp, void *value);
+H5_DLL herr_t H5P__decode_hbool_t(const void **_pp, void *value);
+H5_DLL herr_t H5P__decode_double(const void **_pp, void *value);
 
 /* Testing functions */
 #ifdef H5P_TESTING
diff --git a/src/H5Ppublic.h b/src/H5Ppublic.h
index 1143ab9..507bbb6 100644
--- a/src/H5Ppublic.h
+++ b/src/H5Ppublic.h
@@ -113,8 +113,8 @@ typedef herr_t (*H5P_prp_cb2_t)(hid_t prop_id, const char *name, size_t size, vo
 typedef H5P_prp_cb1_t H5P_prp_create_func_t;
 typedef H5P_prp_cb2_t H5P_prp_set_func_t;
 typedef H5P_prp_cb2_t H5P_prp_get_func_t;
-typedef herr_t (*H5P_prp_encode_func_t)(const void *value, uint8_t **buf, size_t *size);
-typedef herr_t (*H5P_prp_decode_func_t)(const uint8_t **buf, void *value);
+typedef herr_t (*H5P_prp_encode_func_t)(const void *value, void **buf, size_t *size);
+typedef herr_t (*H5P_prp_decode_func_t)(const void **buf, void *value);
 typedef H5P_prp_cb2_t H5P_prp_delete_func_t;
 typedef H5P_prp_cb1_t H5P_prp_copy_func_t;
 typedef int (*H5P_prp_compare_func_t)(const void *value1, const void *value2, size_t size);
diff --git a/src/H5Pstrcpl.c b/src/H5Pstrcpl.c
index 97b7ee3..bedacb0 100644
--- a/src/H5Pstrcpl.c
+++ b/src/H5Pstrcpl.c
@@ -68,8 +68,8 @@
 static herr_t H5P__strcrt_reg_prop(H5P_genclass_t *pclass);
 
 /* encode & decode callbacks */
-static herr_t H5P__strcrt_char_encoding_enc(const void *value, uint8_t **pp, size_t *size);
-static herr_t H5P__strcrt_char_encoding_dec(const uint8_t **pp, void *value);
+static herr_t H5P__strcrt_char_encoding_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__strcrt_char_encoding_dec(const void **_pp, void *value);
 
 
 /*********************/
@@ -223,9 +223,10 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__strcrt_char_encoding_enc(const void *value, uint8_t **pp, size_t *size)
+H5P__strcrt_char_encoding_enc(const void *value, void **_pp, size_t *size)
 {
     const H5T_cset_t *encoding = (const H5T_cset_t *)value; /* Create local alias for values */
+    uint8_t **pp = (uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR
 
@@ -260,9 +261,10 @@ H5P__strcrt_char_encoding_enc(const void *value, uint8_t **pp, size_t *size)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5P__strcrt_char_encoding_dec(const uint8_t **pp, void *_value)
+H5P__strcrt_char_encoding_dec(const void **_pp, void *_value)
 {
     H5T_cset_t *encoding = (H5T_cset_t *)_value;            /* Character set encoding */
+    const uint8_t **pp = (const uint8_t **)_pp;
 
     FUNC_ENTER_STATIC_NOERR