[svn-r19153] Description:

    Bring changes on Coverity branch back to trunk:

r19040:
Fixed coverity #440 - NULL check after dereference.  We moved the NULL check up
into the IF block and changed it to assertion.

r19041:
Maintenance: Addressed Coverity issues 441 and 449 by initializing proper
variables

r19042:
In function H5O_chunk_protect (H5Ochunk.c):
 - Initialize H5O_chunk_proxy_t pointers chk_proxy and ret_value.
 - Free chk_proxy on error.

r19043:
Addressed coverity issues 442 - 448 by initializing pointers to NULL.

Tested on:
    Mac OS X/32 10.6.4 (amazon) w/debug & production
    (Too minor to require h5committest)

7 files changed, 244 insertions, 300 deletions

diff --git a/src/H5B2int.c b/src/H5B2int.c
index a0c5366..f6602737f 100644
--- a/src/H5B2int.c
+++ b/src/H5B2int.c
@@ -80,10 +80,10 @@ static herr_t H5B2_swap_leaf(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
     H5B2_internal_t *internal, unsigned *internal_flags_ptr,
     unsigned idx, void *swap_loc);
 #ifdef H5B2_DEBUG
-static herr_t H5B2_assert_leaf(H5B2_hdr_t *hdr, H5B2_leaf_t *leaf);
-static herr_t H5B2_assert_leaf2(H5B2_hdr_t *hdr, H5B2_leaf_t *leaf, H5B2_leaf_t *leaf2);
-static herr_t H5B2_assert_internal(hsize_t parent_all_nrec, H5B2_hdr_t *hdr, H5B2_internal_t *internal);
-static herr_t H5B2_assert_internal2(hsize_t parent_all_nrec, H5B2_hdr_t *hdr, H5B2_internal_t *internal, H5B2_internal_t *internal2);
+static herr_t H5B2_assert_leaf(const H5B2_hdr_t *hdr, const H5B2_leaf_t *leaf);
+static herr_t H5B2_assert_leaf2(const H5B2_hdr_t *hdr, const H5B2_leaf_t *leaf, const H5B2_leaf_t *leaf2);
+static herr_t H5B2_assert_internal(hsize_t parent_all_nrec, const H5B2_hdr_t *hdr, const H5B2_internal_t *internal);
+static herr_t H5B2_assert_internal2(hsize_t parent_all_nrec, const H5B2_hdr_t *hdr, const H5B2_internal_t *internal, const H5B2_internal_t *internal2);
 #endif /* H5B2_DEBUG */
 
 /*********************/
@@ -178,7 +178,7 @@ H5B2_split1(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth, H5B2_node_ptr_t *cur
 {
     const H5AC_class_t *child_class;    /* Pointer to child node's class info */
     haddr_t left_addr, right_addr;      /* Addresses of left & right child nodes */
-    void *left_child, *right_child;     /* Pointers to child nodes */
+    void *left_child = NULL, *right_child = NULL;     /* Pointers to child nodes */
     uint16_t *left_nrec, *right_nrec;   /* Pointers to child # of records */
     uint8_t *left_native, *right_native;/* Pointers to childs' native records */
     H5B2_node_ptr_t *left_node_ptrs = NULL, *right_node_ptrs = NULL;/* Pointers to childs' node pointer info */
@@ -324,12 +324,12 @@ H5B2_split1(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth, H5B2_node_ptr_t *cur
 #ifdef H5B2_DEBUG
     H5B2_assert_internal((hsize_t)0, hdr, internal);
     if(depth > 1) {
-        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, left_child, right_child);
-        H5B2_assert_internal2(internal->node_ptrs[idx + 1].all_nrec, hdr, right_child, left_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, (H5B2_internal_t *)left_child, (H5B2_internal_t *)right_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx + 1].all_nrec, hdr, (H5B2_internal_t *)right_child, (H5B2_internal_t *)left_child);
     } /* end if */
     else {
-        H5B2_assert_leaf2(hdr, left_child, right_child);
-        H5B2_assert_leaf(hdr, right_child);
+        H5B2_assert_leaf2(hdr, (H5B2_leaf_t *)left_child, (H5B2_leaf_t *)right_child);
+        H5B2_assert_leaf(hdr, (H5B2_leaf_t *)right_child);
     } /* end else */
 #endif /* H5B2_DEBUG */
 
@@ -509,12 +509,12 @@ H5B2_redistribute2(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
 #ifdef H5B2_DEBUG
     H5B2_assert_internal((hsize_t)0, hdr, internal);
     if(depth > 1) {
-        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, left_child, right_child);
-        H5B2_assert_internal2(internal->node_ptrs[idx + 1].all_nrec, hdr, right_child, left_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, (H5B2_internal_t *)left_child, (H5B2_internal_t *)right_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx + 1].all_nrec, hdr, (H5B2_internal_t *)right_child, (H5B2_internal_t *)left_child);
     } /* end if */
     else {
-        H5B2_assert_leaf2(hdr, left_child, right_child);
-        H5B2_assert_leaf(hdr, right_child);
+        H5B2_assert_leaf2(hdr, (H5B2_leaf_t *)left_child, (H5B2_leaf_t *)right_child);
+        H5B2_assert_leaf(hdr, (H5B2_leaf_t *)right_child);
     } /* end else */
 #endif /* H5B2_DEBUG */
 
@@ -629,12 +629,12 @@ H5B2_redistribute2(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
 #ifdef H5B2_DEBUG
     H5B2_assert_internal((hsize_t)0, hdr, internal);
     if(depth > 1) {
-        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, left_child, right_child);
-        H5B2_assert_internal2(internal->node_ptrs[idx + 1].all_nrec, hdr, right_child, left_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, (H5B2_internal_t *)left_child, (H5B2_internal_t *)right_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx + 1].all_nrec, hdr, (H5B2_internal_t *)right_child, (H5B2_internal_t *)left_child);
     } /* end if */
     else {
-        H5B2_assert_leaf2(hdr, left_child, right_child);
-        H5B2_assert_leaf(hdr, right_child);
+        H5B2_assert_leaf2(hdr, (H5B2_leaf_t *)left_child, (H5B2_leaf_t *)right_child);
+        H5B2_assert_leaf(hdr, (H5B2_leaf_t *)right_child);
     } /* end else */
 #endif /* H5B2_DEBUG */
 
@@ -672,8 +672,8 @@ H5B2_redistribute3(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
     const H5AC_class_t *child_class;    /* Pointer to child node's class info */
     haddr_t left_addr, right_addr;      /* Addresses of left & right child nodes */
     haddr_t middle_addr;                /* Address of middle child node */
-    void *left_child, *right_child;     /* Pointers to child nodes */
-    void *middle_child;                 /* Pointers to middle child node */
+    void *left_child = NULL, *right_child = NULL;     /* Pointers to child nodes */
+    void *middle_child = NULL;          /* Pointers to middle child node */
     uint16_t *left_nrec, *right_nrec;   /* Pointers to child # of records */
     uint16_t *middle_nrec;              /* Pointers to middle child # of records */
     uint8_t *left_native, *right_native;    /* Pointers to childs' native records */
@@ -1011,15 +1011,15 @@ H5B2_redistribute3(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
 #ifdef H5B2_DEBUG
     H5B2_assert_internal((hsize_t)0, hdr, internal);
     if(depth > 1) {
-        H5B2_assert_internal2(internal->node_ptrs[idx - 1].all_nrec, hdr, left_child, middle_child);
-        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, middle_child, left_child);
-        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, middle_child, right_child);
-        H5B2_assert_internal2(internal->node_ptrs[idx + 1].all_nrec, hdr, right_child, middle_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx - 1].all_nrec, hdr, (H5B2_internal_t *)left_child, (H5B2_internal_t *)middle_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, (H5B2_internal_t *)middle_child, (H5B2_internal_t *)left_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx].all_nrec, hdr, (H5B2_internal_t *)middle_child, (H5B2_internal_t *)right_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx + 1].all_nrec, hdr, (H5B2_internal_t *)right_child, (H5B2_internal_t *)middle_child);
     } /* end if */
     else {
-        H5B2_assert_leaf2(hdr, left_child, middle_child);
-        H5B2_assert_leaf2(hdr, middle_child, right_child);
-        H5B2_assert_leaf(hdr, right_child);
+        H5B2_assert_leaf2(hdr, (H5B2_leaf_t *)left_child, (H5B2_leaf_t *)middle_child);
+        H5B2_assert_leaf2(hdr, (H5B2_leaf_t *)middle_child, (H5B2_leaf_t *)right_child);
+        H5B2_assert_leaf(hdr, (H5B2_leaf_t *)right_child);
     } /* end else */
 #endif /* H5B2_DEBUG */
 
@@ -1058,7 +1058,7 @@ H5B2_merge2(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
 {
     const H5AC_class_t *child_class;    /* Pointer to child node's class info */
     haddr_t left_addr, right_addr;      /* Addresses of left & right child nodes */
-    void *left_child, *right_child;     /* Pointers to left & right child nodes */
+    void *left_child = NULL, *right_child = NULL;     /* Pointers to left & right child nodes */
     uint16_t *left_nrec, *right_nrec;   /* Pointers to left & right child # of records */
     uint8_t *left_native, *right_native;    /* Pointers to left & right children's native records */
     H5B2_node_ptr_t *left_node_ptrs = NULL, *right_node_ptrs = NULL;/* Pointers to childs' node pointer info */
@@ -1171,9 +1171,9 @@ H5B2_merge2(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
 #ifdef H5B2_DEBUG
     H5B2_assert_internal((hsize_t)0, hdr, internal);
     if(depth > 1)
-        H5B2_assert_internal(internal->node_ptrs[idx].all_nrec, hdr, left_child);
+        H5B2_assert_internal(internal->node_ptrs[idx].all_nrec, hdr, (H5B2_internal_t *)left_child);
     else
-        H5B2_assert_leaf(hdr, left_child);
+        H5B2_assert_leaf(hdr, (H5B2_leaf_t *)left_child);
 #endif /* H5B2_DEBUG */
 
 done:
@@ -1212,8 +1212,8 @@ H5B2_merge3(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
     const H5AC_class_t *child_class;    /* Pointer to child node's class info */
     haddr_t left_addr, right_addr;      /* Addresses of left & right child nodes */
     haddr_t middle_addr;                /* Address of middle child node */
-    void *left_child, *right_child;     /* Pointers to left & right child nodes */
-    void *middle_child;                 /* Pointer to middle child node */
+    void *left_child = NULL, *right_child = NULL;     /* Pointers to left & right child nodes */
+    void *middle_child = NULL;          /* Pointer to middle child node */
     uint16_t *left_nrec, *right_nrec;   /* Pointers to left & right child # of records */
     uint16_t *middle_nrec;              /* Pointer to middle child # of records */
     uint8_t *left_native, *right_native;    /* Pointers to left & right children's native records */
@@ -1393,12 +1393,12 @@ H5B2_merge3(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
 #ifdef H5B2_DEBUG
     H5B2_assert_internal((hsize_t)0, hdr, internal);
     if(depth > 1) {
-        H5B2_assert_internal2(internal->node_ptrs[idx - 1].all_nrec, hdr, left_child, middle_child);
-        H5B2_assert_internal(internal->node_ptrs[idx].all_nrec, hdr, middle_child);
+        H5B2_assert_internal2(internal->node_ptrs[idx - 1].all_nrec, hdr, (H5B2_internal_t *)left_child, (H5B2_internal_t *)middle_child);
+        H5B2_assert_internal(internal->node_ptrs[idx].all_nrec, hdr, (H5B2_internal_t *)middle_child);
     } /* end if */
     else {
-        H5B2_assert_leaf2(hdr, left_child, middle_child);
-        H5B2_assert_leaf(hdr, middle_child);
+        H5B2_assert_leaf2(hdr, (H5B2_leaf_t *)left_child, (H5B2_leaf_t *)middle_child);
+        H5B2_assert_leaf(hdr, (H5B2_leaf_t *)middle_child);
     } /* end else */
 #endif /* H5B2_DEBUG */
 
@@ -1439,7 +1439,7 @@ H5B2_swap_leaf(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
 {
     const H5AC_class_t *child_class;    /* Pointer to child node's class info */
     haddr_t child_addr;                 /* Address of child node */
-    void *child;                        /* Pointer to child node */
+    void *child = NULL;                 /* Pointer to child node */
     uint8_t *child_native;              /* Pointer to child's native records */
     herr_t ret_value = SUCCEED;         /* Return value */
 
@@ -1494,9 +1494,9 @@ H5B2_swap_leaf(H5B2_hdr_t *hdr, hid_t dxpl_id, unsigned depth,
 #ifdef H5B2_DEBUG
     H5B2_assert_internal((hsize_t)0, hdr, internal);
     if(depth > 1)
-        H5B2_assert_internal(internal->node_ptrs[idx].all_nrec, hdr, child);
+        H5B2_assert_internal(internal->node_ptrs[idx].all_nrec, hdr, (H5B2_internal_t *)child);
     else
-        H5B2_assert_leaf(hdr, child);
+        H5B2_assert_leaf(hdr, (H5B2_leaf_t *)child);
 #endif /* H5B2_DEBUG */
 
 done:
@@ -3082,7 +3082,7 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5B2_assert_leaf(H5B2_hdr_t *hdr, H5B2_leaf_t *leaf)
+H5B2_assert_leaf(const H5B2_hdr_t *hdr, const H5B2_leaf_t *leaf)
 {
     /* General sanity checking on node */
     HDassert(leaf->nrec <= hdr->node_info->split_nrec);
@@ -3105,13 +3105,13 @@ H5B2_assert_leaf(H5B2_hdr_t *hdr, H5B2_leaf_t *leaf)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5B2_assert_leaf2(H5B2_hdr_t *hdr, H5B2_leaf_t *leaf, H5B2_leaf_t *leaf2)
+H5B2_assert_leaf2(const H5B2_hdr_t *hdr, const H5B2_leaf_t *leaf, const H5B2_leaf_t UNUSED *leaf2)
 {
     /* General sanity checking on node */
     HDassert(leaf->nrec <= hdr->node_info->split_nrec);
 
     return(0);
-} /* end H5B2_assert_leaf() */
+} /* end H5B2_assert_leaf2() */
 
 
 /*-------------------------------------------------------------------------
@@ -3128,10 +3128,10 @@ H5B2_assert_leaf2(H5B2_hdr_t *hdr, H5B2_leaf_t *leaf, H5B2_leaf_t *leaf2)
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5B2_assert_internal(hsize_t parent_all_nrec, H5B2_hdr_t *hdr, H5B2_internal_t *internal)
+H5B2_assert_internal(hsize_t parent_all_nrec, const H5B2_hdr_t *hdr, const H5B2_internal_t *internal)
 {
     hsize_t tot_all_nrec;       /* Total number of records at or below this node */
-    unsigned u, v;               /* Local index variables */
+    uint16_t u, v;               /* Local index variables */
 
     /* General sanity checking on node */
     HDassert(internal->nrec <= hdr->node_info->split_nrec);
@@ -3169,10 +3169,10 @@ H5B2_assert_internal(hsize_t parent_all_nrec, H5B2_hdr_t *hdr, H5B2_internal_t *
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5B2_assert_internal2(hsize_t parent_all_nrec, H5B2_hdr_t *hdr, H5B2_internal_t *internal, H5B2_internal_t *internal2)
+H5B2_assert_internal2(hsize_t parent_all_nrec, const H5B2_hdr_t *hdr, const H5B2_internal_t *internal, const H5B2_internal_t *internal2)
 {
     hsize_t tot_all_nrec;       /* Total number of records at or below this node */
-    unsigned u, v;       /* Local index variables */
+    uint16_t u, v;       /* Local index variables */
 
     /* General sanity checking on node */
     HDassert(internal->nrec <= hdr->node_info->split_nrec);
diff --git a/src/H5O.c b/src/H5O.c
index 473dc23..3b4d70a 100644
--- a/src/H5O.c
+++ b/src/H5O.c
@@ -1052,17 +1052,29 @@ H5Oclose(hid_t object_id)
     H5TRACE1("e", "i", object_id);
 
     /* Get the type of the object and close it in the correct way */
-    switch(H5I_get_type(object_id))
-    {
-        case(H5I_GROUP):
-        case(H5I_DATATYPE):
-        case(H5I_DATASET):
+    switch(H5I_get_type(object_id)) {
+        case H5I_GROUP:
+        case H5I_DATATYPE:
+        case H5I_DATASET:
             if(H5I_object(object_id) == NULL)
                 HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a valid object")
             if(H5I_dec_ref(object_id, TRUE) < 0)
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTRELEASE, FAIL, "unable to close object")
             break;
 
+        case H5I_UNINIT:
+        case H5I_BADID:
+        case H5I_FILE:
+        case H5I_DATASPACE:
+        case H5I_ATTR:
+        case H5I_REFERENCE:
+        case H5I_VFL:
+        case H5I_GENPROP_CLS:
+        case H5I_GENPROP_LST:
+        case H5I_ERROR_CLASS:
+        case H5I_ERROR_MSG:
+        case H5I_ERROR_STACK:
+        case H5I_NTYPES:
         default:
             HGOTO_ERROR(H5E_ARGS, H5E_CANTRELEASE, FAIL, "not a valid file object ID (dataset, group, or datatype)")
         break;
@@ -1228,7 +1240,7 @@ H5O_create(H5F_t *f, hid_t dxpl_id, size_t size_hint, hid_t ocpl_id,
     oh->mesg[0].dirty = TRUE;
     oh->mesg[0].native = NULL;
     oh->mesg[0].raw = oh->chunk[0].image + (H5O_SIZEOF_HDR(oh) - H5O_SIZEOF_CHKSUM_OH(oh)) + H5O_SIZEOF_MSGHDR_OH(oh);
-    oh->mesg[0].raw_size = size_hint - H5O_SIZEOF_MSGHDR_OH(oh);
+    oh->mesg[0].raw_size = size_hint - (size_t)H5O_SIZEOF_MSGHDR_OH(oh);
     oh->mesg[0].chunkno = 0;
 
     /* Set metadata tag in dxpl_id */
@@ -1485,7 +1497,7 @@ H5O_link_oh(H5F_t *f, int adjust, hid_t dxpl_id, H5O_t *oh, hbool_t *deleted)
                 HGOTO_ERROR(H5E_OHDR, H5E_LINKCOUNT, FAIL, "link count would be negative")
 
             /* Adjust the link count for the object header */
-            oh->nlink += adjust;
+            oh->nlink = (unsigned)((int)oh->nlink + adjust);
 
             /* Mark object header as dirty in cache */
             if(H5AC_mark_entry_dirty(oh) < 0)
@@ -1517,7 +1529,7 @@ H5O_link_oh(H5F_t *f, int adjust, hid_t dxpl_id, H5O_t *oh, hbool_t *deleted)
             } /* end if */
 
             /* Adjust the link count for the object header */
-            oh->nlink += adjust;
+            oh->nlink = (unsigned)((int)oh->nlink + adjust);
 
             /* Mark object header as dirty in cache */
             if(H5AC_mark_entry_dirty(oh) < 0)
@@ -1674,6 +1686,7 @@ H5O_protect(const H5O_loc_t *loc, hid_t dxpl_id, H5AC_protect_t prot)
          *      when the object header is actually loaded from the file.
          */
         HDassert(udata.made_attempt == TRUE);
+        HDassert(cont_msg_info.msgs);
 
         /* Construct the user data for protecting chunks */
         chk_udata.decoding = TRUE;
@@ -1715,8 +1728,7 @@ H5O_protect(const H5O_loc_t *loc, hid_t dxpl_id, H5AC_protect_t prot)
         } /* end while */
 
         /* Release any continuation messages built up */
-        if(cont_msg_info.msgs)
-            cont_msg_info.msgs = (H5O_cont_t *)H5FL_SEQ_FREE(H5O_cont_t, cont_msg_info.msgs);
+        cont_msg_info.msgs = (H5O_cont_t *)H5FL_SEQ_FREE(H5O_cont_t, cont_msg_info.msgs);
 
         /* Pass back out some of the chunk's user data */
         udata.common.merged_null_msgs = chk_udata.common.merged_null_msgs;
@@ -1990,7 +2002,7 @@ H5O_touch_oh(H5F_t *f, hid_t dxpl_id, H5O_t *oh, hbool_t force)
                     break;
 
             /* Create a new message, if necessary */
-            if(idx == oh->nmesgs) {
+            if(idx == (int)oh->nmesgs) {
                 unsigned mesg_flags = 0;        /* Flags for message in object header */
 
                 /* If we would have to create a new message, but we aren't 'forcing' it, get out now */
@@ -2426,23 +2438,35 @@ H5O_get_loc(hid_t object_id)
 
     FUNC_ENTER_NOAPI_NOINIT(H5O_get_loc)
 
-    switch(H5I_get_type(object_id))
-    {
-        case(H5I_GROUP):
+    switch(H5I_get_type(object_id)) {
+        case H5I_GROUP:
             if(NULL == (ret_value = H5O_OBJ_GROUP->get_oloc(object_id)))
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, NULL, "unable to get object location from group ID")
             break;
 
-        case(H5I_DATASET):
+        case H5I_DATASET:
             if(NULL == (ret_value = H5O_OBJ_DATASET->get_oloc(object_id)))
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, NULL, "unable to get object location from dataset ID")
             break;
 
-        case(H5I_DATATYPE):
+        case H5I_DATATYPE:
             if(NULL == (ret_value = H5O_OBJ_DATATYPE->get_oloc(object_id)))
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, NULL, "unable to get object location from datatype ID")
             break;
 
+        case H5I_UNINIT:
+        case H5I_BADID:
+        case H5I_FILE:
+        case H5I_DATASPACE:
+        case H5I_ATTR:
+        case H5I_REFERENCE:
+        case H5I_VFL:
+        case H5I_GENPROP_CLS:
+        case H5I_GENPROP_LST:
+        case H5I_ERROR_CLASS:
+        case H5I_ERROR_MSG:
+        case H5I_ERROR_STACK:
+        case H5I_NTYPES:
         default:
             HGOTO_ERROR(H5E_OHDR, H5E_BADTYPE, NULL, "invalid object type")
     } /* end switch */
@@ -2504,7 +2528,7 @@ H5O_loc_reset(H5O_loc_t *loc)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5O_loc_copy(H5O_loc_t *dst, const H5O_loc_t *src, H5_copy_depth_t depth)
+H5O_loc_copy(H5O_loc_t *dst, H5O_loc_t *src, H5_copy_depth_t depth)
 {
     FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_loc_copy)
 
@@ -2524,8 +2548,7 @@ H5O_loc_copy(H5O_loc_t *dst, const H5O_loc_t *src, H5_copy_depth_t depth)
         if(src->holding_file)
             dst->file->nopen_objs++;
     } else if(depth == H5_COPY_SHALLOW) {
-        /* Discarding 'const' qualifier OK - QAK */
-        H5O_loc_reset((H5O_loc_t *)src);
+        H5O_loc_reset(src);
     } /* end if */
 
     FUNC_LEAVE_NOAPI(SUCCEED)
@@ -2686,7 +2709,7 @@ H5O_get_hdr_info_real(const H5O_t *oh, H5O_hdr_info_t *hdr)
     hdr->flags = oh->flags;
 
     /* Iterate over all the messages, accumulating message size & type information */
-    hdr->space.meta = H5O_SIZEOF_HDR(oh) + (H5O_SIZEOF_CHKHDR_OH(oh) * (oh->nchunks - 1));
+    hdr->space.meta = (hsize_t)H5O_SIZEOF_HDR(oh) + (hsize_t)(H5O_SIZEOF_CHKHDR_OH(oh) * (oh->nchunks - 1));
     hdr->space.mesg = 0;
     hdr->space.free = 0;
     hdr->mesg.present = 0;
@@ -2696,11 +2719,11 @@ H5O_get_hdr_info_real(const H5O_t *oh, H5O_hdr_info_t *hdr)
 
         /* Accumulate space usage information, based on the type of message */
 	if(H5O_NULL_ID == curr_msg->type->id)
-            hdr->space.free += H5O_SIZEOF_MSGHDR_OH(oh) + curr_msg->raw_size;
+            hdr->space.free += (hsize_t)((size_t)H5O_SIZEOF_MSGHDR_OH(oh) + curr_msg->raw_size);
         else if(H5O_CONT_ID == curr_msg->type->id)
-            hdr->space.meta += H5O_SIZEOF_MSGHDR_OH(oh) + curr_msg->raw_size;
+            hdr->space.meta += (hsize_t)((size_t)H5O_SIZEOF_MSGHDR_OH(oh) + curr_msg->raw_size);
         else {
-            hdr->space.meta += H5O_SIZEOF_MSGHDR_OH(oh);
+            hdr->space.meta += (hsize_t)H5O_SIZEOF_MSGHDR_OH(oh);
             hdr->space.mesg += curr_msg->raw_size;
         } /* end else */
 
diff --git a/src/H5Oattribute.c b/src/H5Oattribute.c
index dcb129d..f155c94 100644
--- a/src/H5Oattribute.c
+++ b/src/H5Oattribute.c
@@ -851,12 +851,17 @@ H5O_attr_write_cb(H5O_t *oh, H5O_mesg_t *mesg/*in,out*/,
 
         /* Because the attribute structure is shared now. The only situation that requires
          * copying the data is when the metadata cache evicts and reloads this attribute. 
-         * The attribute structure will be different in that situation. SLU-2010/7/29 */
-        if(((H5A_t *)mesg->native)->shared != udata->attr->shared)
+         * The shared attribute structure will be different in that situation. SLU-2010/7/29 */
+        if(((H5A_t *)mesg->native)->shared != udata->attr->shared) {
+            /* Sanity check */
+            HDassert(((H5A_t *)mesg->native)->shared->data);
+            HDassert(udata->attr->shared->data);
+            HDassert(((H5A_t *)mesg->native)->shared->data != udata->attr->shared->data);
+
             /* (Needs to occur before updating the shared message, or the hash
              *      value on the old & new messages will be the same) */
-            HDmemcpy(((H5A_t *)mesg->native)->shared->data, udata->attr->shared->data, 
-                     udata->attr->shared->data_size);
+            HDmemcpy(((H5A_t *)mesg->native)->shared->data, udata->attr->shared->data, udata->attr->shared->data_size);
+        } /* end if */
 
         /* Mark the message as modified */
         mesg->dirty = TRUE;
diff --git a/src/H5Ochunk.c b/src/H5Ochunk.c
index f867d04..42b391d 100644
--- a/src/H5Ochunk.c
+++ b/src/H5Ochunk.c
@@ -148,8 +148,8 @@ done:
 H5O_chunk_proxy_t *
 H5O_chunk_protect(H5F_t *f, hid_t dxpl_id, H5O_t *oh, unsigned idx)
 {
-    H5O_chunk_proxy_t *chk_proxy;       /* Proxy for protected chunk */
-    H5O_chunk_proxy_t *ret_value;       /* Return value */
+    H5O_chunk_proxy_t *chk_proxy = NULL;        /* Proxy for protected chunk */
+    H5O_chunk_proxy_t *ret_value;               /* Return value */
 
     FUNC_ENTER_NOAPI_TAG(H5O_chunk_protect, dxpl_id, oh->cache_info.addr, NULL)
 
@@ -196,6 +196,11 @@ H5O_chunk_protect(H5F_t *f, hid_t dxpl_id, H5O_t *oh, unsigned idx)
     ret_value = chk_proxy;
 
 done:
+    /* Cleanup on error */
+    if(!ret_value)
+        if(0 == idx && chk_proxy)
+            chk_proxy = H5FL_FREE(H5O_chunk_proxy_t, chk_proxy);
+
     FUNC_LEAVE_NOAPI_TAG(ret_value, NULL)
 } /* end H5O_chunk_protect() */
 
diff --git a/src/H5Oprivate.h b/src/H5Oprivate.h
index c38ddea..cc06671 100644
--- a/src/H5Oprivate.h
+++ b/src/H5Oprivate.h
@@ -713,7 +713,7 @@ H5_DLL herr_t H5O_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE * stream, in
 
 /* These functions operate on object locations */
 H5_DLL herr_t H5O_loc_reset(H5O_loc_t *loc);
-H5_DLL herr_t H5O_loc_copy(H5O_loc_t *dst, const H5O_loc_t *src, H5_copy_depth_t depth);
+H5_DLL herr_t H5O_loc_copy(H5O_loc_t *dst, H5O_loc_t *src, H5_copy_depth_t depth);
 H5_DLL herr_t H5O_loc_hold_file(H5O_loc_t *loc);
 H5_DLL herr_t H5O_loc_free(H5O_loc_t *loc);
 
diff --git a/src/H5Shyper.c b/src/H5Shyper.c
index 937fc26..a4fe5a3 100644
--- a/src/H5Shyper.c
+++ b/src/H5Shyper.c
@@ -2711,43 +2711,43 @@ done:
 herr_t
 H5S_hyper_bounds(const H5S_t *space, hsize_t *start, hsize_t *end)
 {
-    int rank;                   /* Dataspace rank */
-    int i;                      /* index variable */
-    herr_t ret_value=SUCCEED;   /* Return value */
+    unsigned rank;              /* Dataspace rank */
+    unsigned i;                 /* index variable */
+    herr_t ret_value = SUCCEED; /* Return value */
 
-    FUNC_ENTER_NOAPI(H5S_hyper_bounds,FAIL)
+    FUNC_ENTER_NOAPI(H5S_hyper_bounds, FAIL)
 
-    assert(space);
-    assert(start);
-    assert(end);
+    HDassert(space);
+    HDassert(start);
+    HDassert(end);
 
     /* Set the start and end arrays up */
-    rank=space->extent.rank;
-    for(i=0; i<rank; i++) {
-        start[i]=HSIZET_MAX;
-        end[i]=0;
+    rank = space->extent.rank;
+    for(i = 0; i < rank; i++) {
+        start[i] = HSIZET_MAX;
+        end[i] = 0;
     } /* end for */
 
     /* Check for a "regular" hyperslab selection */
     if(space->select.sel_info.hslab->diminfo_valid) {
-        const H5S_hyper_dim_t *diminfo=space->select.sel_info.hslab->opt_diminfo; /* local alias for diminfo */
+        const H5S_hyper_dim_t *diminfo = space->select.sel_info.hslab->opt_diminfo; /* local alias for diminfo */
 
         /* Check each dimension */
-        for(i=0; i<rank; i++) {
+        for(i = 0; i < rank; i++) {
             /* Check for offset moving selection negative */
-            if((space->select.offset[i]+(hssize_t)diminfo[i].start)<0)
+            if((space->select.offset[i] + (hssize_t)diminfo[i].start) < 0)
                 HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "offset moves selection out of bounds")
 
             /* Compute the smallest location in this dimension */
-            start[i]=diminfo[i].start+space->select.offset[i];
+            start[i] = diminfo[i].start + space->select.offset[i];
 
             /* Compute the largest location in this dimension */
-            end[i]=diminfo[i].start+diminfo[i].stride*(diminfo[i].count-1)+(diminfo[i].block-1)+space->select.offset[i];
+            end[i] = diminfo[i].start + diminfo[i].stride * (diminfo[i].count - 1) + (diminfo[i].block - 1) + space->select.offset[i];
         } /* end for */
     } /* end if */
     else {
         /* Call the recursive routine to get the bounds for the span tree */
-        ret_value=H5S_hyper_bounds_helper(space->select.sel_info.hslab->span_lst,space->select.offset,(hsize_t)0,start,end);
+        ret_value = H5S_hyper_bounds_helper(space->select.sel_info.hslab->span_lst, space->select.offset, (hsize_t)0, start, end);
     } /* end if */
 
 done:
@@ -2781,7 +2781,7 @@ H5S_hyper_offset(const H5S_t *space, hsize_t *offset)
     const hssize_t *sel_offset; /* Pointer to the selection's offset */
     const hsize_t *dim_size;    /* Pointer to a dataspace's extent */
     hsize_t accum;              /* Accumulator for dimension sizes */
-    int rank;                   /* Dataspace rank */
+    unsigned rank;              /* Dataspace rank */
     int i;                      /* index variable */
     herr_t ret_value = SUCCEED; /* Return value */
 
@@ -2804,7 +2804,7 @@ H5S_hyper_offset(const H5S_t *space, hsize_t *offset)
 
         /* Loop through starting coordinates, calculating the linear offset */
         accum = 1;
-        for(i = (rank - 1); i >= 0; i--) {
+        for(i = (int)(rank - 1); i >= 0; i--) {
             hssize_t hyp_offset = (hssize_t)diminfo[i].start + sel_offset[i]; /* Hyperslab's offset in this dimension */
 
             /* Check for offset moving selection out of the dataspace */
@@ -2824,7 +2824,7 @@ H5S_hyper_offset(const H5S_t *space, hsize_t *offset)
 
         /* Calculate the accumulator for each dimension */
         accum = 1;
-        for(i = (rank - 1); i >= 0; i--) {
+        for(i = (int)(rank - 1); i >= 0; i--) {
             /* Set the accumulator for this dimension */
             dim_accum[i] = accum;
 
@@ -4505,115 +4505,6 @@ done:
 
 /*--------------------------------------------------------------------------
  NAME
-    H5S_hyper_move_helper
- PURPOSE
-    Helper routine to move offset in span trees
- USAGE
-    herr_t H5S_hyper_move_helper(spans, offset)
-        H5S_hyper_span_info_t *spans;   IN: Span tree to operate with
-        const hssize_t *offset;         IN: Offset to move to
- RETURNS
-    Non-negative on success, negative on failure
- DESCRIPTION
-    Adjust the location of the spans in a span tree by moving selection to an
-    offset.
- GLOBAL VARIABLES
- COMMENTS, BUGS, ASSUMPTIONS
- EXAMPLES
- REVISION LOG
---------------------------------------------------------------------------*/
-static herr_t
-H5S_hyper_move_helper (H5S_hyper_span_info_t *spans, const hssize_t *offset)
-{
-    H5S_hyper_span_t *span;     /* Pointer to current span in span tree */
-
-    FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5S_hyper_move_helper);
-
-    /* Sanity check */
-    assert(spans);
-    assert(offset);
-
-    /* Check if we've already set this down span tree */
-    if(spans->scratch!=(H5S_hyper_span_info_t *)~((size_t)NULL)) {
-        /* Set the tree's scratch pointer */
-        spans->scratch=(H5S_hyper_span_info_t *)~((size_t)NULL);
-
-        /* Get the span lists for each span in this tree */
-        span=spans->head;
-
-        /* Iterate over the spans in tree */
-        while(span!=NULL) {
-            /* Adjust span location */
-            assert(*offset>=0);
-            span->high=*offset+(span->high-span->low);
-            span->low=*offset;
-
-            /* Recursively move spans in next dimension down */
-            if(span->down!=NULL)
-                H5S_hyper_move_helper(span->down,offset+1);
-
-            /* Advance to next span in this dimension */
-            span=span->next;
-        } /* end while */
-    } /* end if */
-
-    FUNC_LEAVE_NOAPI(SUCCEED);
-}   /* H5S_hyper_move_helper() */
-
-
-/*--------------------------------------------------------------------------
- NAME
-    H5S_hyper_move
- PURPOSE
-    Move a hyperslab selection by to an offset
- USAGE
-    herr_t H5S_hyper_move(space,offset)
-        H5S_t *space;           IN/OUT: Pointer to dataspace to move
-        const hssize_t *offset; IN: Offset to move to
- RETURNS
-    Non-negative on success, negative on failure
- DESCRIPTION
-    Moves a hyperslab selection to a new offset.
- GLOBAL VARIABLES
- COMMENTS, BUGS, ASSUMPTIONS
- EXAMPLES
- REVISION LOG
---------------------------------------------------------------------------*/
-herr_t
-H5S_hyper_move(H5S_t *space, const hssize_t *offset)
-{
-    unsigned u;                         /* Local index variable */
-    herr_t      ret_value=SUCCEED;       /* Return value */
-
-    FUNC_ENTER_NOAPI_NOINIT(H5S_hyper_move);
-
-    assert(space);
-    assert(offset);
-
-    /* Move to the offset with the "regular" coordinates, if they exist */
-    if(space->select.sel_info.hslab->diminfo_valid) {
-        for(u=0; u<space->extent.rank; u++) {
-            assert(offset[u]>=0);
-            space->select.sel_info.hslab->opt_diminfo[u].start=offset[u];
-        } /* end for */
-    } /* end if */
-
-    /* Subtract the offset from the span tree coordinates, if they exist */
-    if(space->select.sel_info.hslab->span_lst) {
-        if(H5S_hyper_move_helper(space->select.sel_info.hslab->span_lst,offset)<0)
-            HGOTO_ERROR(H5E_DATASPACE, H5E_BADSELECT, FAIL, "can't perform hyperslab offset movement");
-
-        /* Reset the scratch pointers for the next routine which needs them */
-        H5S_hyper_span_scratch(space->select.sel_info.hslab->span_lst, NULL);
-    } /* end if */
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value);
-}   /* H5S_hyper_move() */
-
-
-/*--------------------------------------------------------------------------
- NAME
     H5S_hyper_normalize_offset
  PURPOSE
     "Normalize" a hyperslab selection by adjusting it's coordinates by the
@@ -5774,10 +5665,9 @@ static H5S_hyper_span_info_t *
 H5S_hyper_make_spans(unsigned rank, const hsize_t *start, const hsize_t *stride,
     const hsize_t *count, const hsize_t *block)
 {
-    H5S_hyper_span_info_t *down;            /* Pointer to spans in next dimension down */
-    H5S_hyper_span_t      *span;            /* New hyperslab span */
+    H5S_hyper_span_info_t *down = NULL;     /* Pointer to spans in next dimension down */
     H5S_hyper_span_t      *last_span;       /* Current position in hyperslab span list */
-    H5S_hyper_span_t      *head;            /* Head of new hyperslab span list */
+    H5S_hyper_span_t      *head = NULL;     /* Head of new hyperslab span list */
     hsize_t                stride_iter;     /* Iterator over the stride values */
     int                    i;               /* Counters */
     unsigned               u;               /* Counters */
@@ -5793,8 +5683,7 @@ H5S_hyper_make_spans(unsigned rank, const hsize_t *start, const hsize_t *stride,
     HDassert(block);
 
     /* Start creating spans in fastest changing dimension */
-    down = NULL;
-    for(i = (rank - 1); i >= 0; i--) {
+    for(i = (int)(rank - 1); i >= 0; i--) {
 
         /* Sanity check */
         if(0 == count[i])
@@ -5806,6 +5695,8 @@ H5S_hyper_make_spans(unsigned rank, const hsize_t *start, const hsize_t *stride,
 
         /* Generate all the span segments for this dimension */
         for(u = 0, stride_iter = 0; u < count[i]; u++, stride_iter += stride[i]) {
+            H5S_hyper_span_t      *span;            /* New hyperslab span */
+
             /* Allocate a span node */
             if(NULL == (span = H5FL_MALLOC(H5S_hyper_span_t)))
                 HGOTO_ERROR(H5E_DATASPACE, H5E_CANTALLOC, NULL, "can't allocate hyperslab span")
@@ -5918,7 +5809,7 @@ H5S_hyper_rebuild_helper(const H5S_hyper_span_t *span, H5S_hyper_dim_t span_slab
     hsize_t curr_block, next_block;
     hsize_t curr_start;
     hsize_t curr_low;
-    int     outcount;
+    size_t outcount;
     unsigned u;
     H5S_hyper_dim_t      canon_down_span_slab_info[H5S_MAX_RANK];
     hbool_t ret_value = TRUE;
@@ -6318,6 +6209,11 @@ H5S_generate_hyperslab (H5S_t *space, H5S_seloper_t op,
                 } /* end if */
                 break;
 
+            case H5S_SELECT_NOOP:
+            case H5S_SELECT_SET:
+            case H5S_SELECT_APPEND:
+            case H5S_SELECT_PREPEND:
+            case H5S_SELECT_INVALID:
             default:
                 HGOTO_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "invalid selection operation");
         } /* end switch */
@@ -6444,6 +6340,10 @@ H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op,
                 case H5S_SELECT_NOTB:  /* Binary "A not B" operation for hyperslabs */
                     HGOTO_DONE(SUCCEED);        /* Selection stays same */
 
+                case H5S_SELECT_NOOP:
+                case H5S_SELECT_APPEND:
+                case H5S_SELECT_PREPEND:
+                case H5S_SELECT_INVALID:
                 default:
                     HGOTO_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "invalid selection operation");
             } /* end switch */
@@ -6503,6 +6403,10 @@ H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op,
                 case H5S_SELECT_NOTB:  /* Binary "A not B" operation for hyperslabs */
                     HGOTO_DONE(SUCCEED);        /* Selection stays "none" */
 
+                case H5S_SELECT_NOOP:
+                case H5S_SELECT_APPEND:
+                case H5S_SELECT_PREPEND:
+                case H5S_SELECT_INVALID:
                 default:
                     HGOTO_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "invalid selection operation");
             } /* end switch */
@@ -6551,6 +6455,10 @@ H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op,
                         HGOTO_ERROR(H5E_DATASPACE, H5E_CANTDELETE, FAIL, "can't convert selection");
                     HGOTO_DONE(SUCCEED);
 
+                case H5S_SELECT_NOOP:
+                case H5S_SELECT_APPEND:
+                case H5S_SELECT_PREPEND:
+                case H5S_SELECT_INVALID:
                 default:
                     HGOTO_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "invalid selection operation");
             } /* end switch */
@@ -6565,6 +6473,8 @@ H5S_select_hyperslab (H5S_t *space, H5S_seloper_t op,
                 break;
             /* Else fall through to error */
 
+        case H5S_SEL_ERROR:
+        case H5S_SEL_N:
         default:
             HGOTO_ERROR(H5E_ARGS, H5E_UNSUPPORTED, FAIL, "invalid selection operation");
     } /* end switch */
@@ -7653,52 +7563,53 @@ H5S_hyper_get_seq_list_gen(const H5S_t *space,H5S_sel_iter_t *iter,
     size_t io_used;     /* Number of elements processed */
     size_t curr_seq=0; /* Number of sequence/offsets stored in the arrays */
     size_t elem_size;   /* Size of each element iterating over */
-    int ndims;         /* Number of dimensions of dataset */
-    int fast_dim;      /* Rank of the fastest changing dimension for the dataspace */
+    unsigned ndims;    /* Number of dimensions of dataset */
+    unsigned fast_dim; /* Rank of the fastest changing dimension for the dataspace */
     int curr_dim;      /* Current dimension being operated on */
+    unsigned u;        /* Index variable */
     int i;             /* Index variable */
 
-    FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5S_hyper_get_seq_list_gen);
+    FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5S_hyper_get_seq_list_gen)
 
     /* Check args */
-    assert(space);
-    assert(iter);
-    assert(maxseq>0);
-    assert(maxelem>0);
-    assert(nseq);
-    assert(nelem);
-    assert(off);
-    assert(len);
+    HDassert(space);
+    HDassert(iter);
+    HDassert(maxseq > 0);
+    HDassert(maxelem > 0);
+    HDassert(nseq);
+    HDassert(nelem);
+    HDassert(off);
+    HDassert(len);
 
     /* Set the rank of the fastest changing dimension */
-    ndims=space->extent.rank;
-    fast_dim=(ndims-1);
+    ndims = space->extent.rank;
+    fast_dim = (ndims - 1);
 
     /* Get the pointers to the current span info and span nodes */
-    curr_span=iter->u.hyp.span[fast_dim];
-    abs_arr=iter->u.hyp.off;
-    off_arr=space->select.offset;
-    ispan=iter->u.hyp.span;
-    elem_size=iter->elmt_size;
+    curr_span = iter->u.hyp.span[fast_dim];
+    abs_arr = iter->u.hyp.off;
+    off_arr = space->select.offset;
+    ispan = iter->u.hyp.span;
+    elem_size = iter->elmt_size;
 
     /* Set the amount of elements to perform I/O on, etc. */
-    H5_CHECK_OVERFLOW(iter->elmt_left,hsize_t,size_t);
-    io_left=MIN(maxelem,(size_t)iter->elmt_left);
-    io_bytes_left=io_left*elem_size;
+    H5_CHECK_OVERFLOW(iter->elmt_left, hsize_t, size_t);
+    io_left = MIN(maxelem, (size_t)iter->elmt_left);
+    io_bytes_left = io_left * elem_size;
 
     /* Compute the cumulative size of dataspace dimensions */
-    for(i=fast_dim, acc=elem_size; i>=0; i--) {
-        slab[i]=acc;
-        acc*=space->extent.size[i];
+    for(i = (int)fast_dim, acc = elem_size; i >= 0; i--) {
+        slab[i] = acc;
+        acc *= space->extent.size[i];
     } /* end for */
 
     /* Set the offset of the first element iterated on */
-    for(i=0, loc_off=0; i<ndims; i++)
+    for(u = 0, loc_off = 0; u < ndims; u++)
         /* Compute the sequential element offset */
-        loc_off+=(abs_arr[i]+off_arr[i])*slab[i];
+        loc_off += (abs_arr[u] + off_arr[u]) * slab[u];
 
     /* Range check against number of elements left in selection */
-    assert(io_bytes_left<=(iter->elmt_left*elem_size));
+    HDassert(io_bytes_left <= (iter->elmt_left * elem_size));
 
     /* Take care of any partial spans leftover from previous I/Os */
     if(abs_arr[fast_dim]!=curr_span->low) {
@@ -7765,7 +7676,7 @@ H5S_hyper_get_seq_list_gen(const H5S_t *space,H5S_sel_iter_t *iter,
         if(NULL == curr_span) {
 /* Same as code in main loop */
             /* Start at the next fastest dim */
-            curr_dim = fast_dim - 1;
+            curr_dim = (int)(fast_dim - 1);
 
             /* Work back up through the dimensions */
             while(curr_dim >= 0) {
@@ -7804,7 +7715,7 @@ H5S_hyper_get_seq_list_gen(const H5S_t *space,H5S_sel_iter_t *iter,
             /* Check if we have more spans in the tree */
             if(curr_dim >= 0) {
                 /* Walk back down the iterator positions, reseting them */
-                while(curr_dim < fast_dim) {
+                while((unsigned)curr_dim < fast_dim) {
                     HDassert(curr_span);
                     HDassert(curr_span->down);
                     HDassert(curr_span->down->head);
@@ -7826,8 +7737,8 @@ H5S_hyper_get_seq_list_gen(const H5S_t *space,H5S_sel_iter_t *iter,
                 HDassert(curr_span == iter->u.hyp.span[fast_dim]);
 
                 /* Reset the buffer offset */
-                for(i = 0, loc_off = 0; i < ndims; i++)
-                    loc_off += (abs_arr[i] + off_arr[i]) * slab[i];
+                for(u = 0, loc_off = 0; u < ndims; u++)
+                    loc_off += (abs_arr[u] + off_arr[u]) * slab[u];
             } /* end else */
             else
                 /* We had better be done with I/O or bad things are going to happen... */
@@ -7946,10 +7857,10 @@ H5S_hyper_get_seq_list_gen(const H5S_t *space,H5S_sel_iter_t *iter,
         /* Adjust iterator pointers */
 
         /* Start at the next fastest dim */
-        curr_dim=fast_dim-1;
+        curr_dim = (int)(fast_dim - 1);
 
         /* Work back up through the dimensions */
-        while(curr_dim>=0) {
+        while(curr_dim >= 0) {
             /* Reset the current span */
 	    curr_span=iter->u.hyp.span[curr_dim];
 
@@ -7983,51 +7894,51 @@ H5S_hyper_get_seq_list_gen(const H5S_t *space,H5S_sel_iter_t *iter,
         } /* end while */
 
         /* Check if we are finished with the spans in the tree */
-        if(curr_dim<0) {
+        if(curr_dim < 0) {
             /* We had better be done with I/O or bad things are going to happen... */
-            assert(io_bytes_left==0);
+            HDassert(io_bytes_left == 0);
             break;
         } /* end if */
         else {
             /* Walk back down the iterator positions, reseting them */
-            while(curr_dim<fast_dim) {
-                assert(curr_span);
-                assert(curr_span->down);
-                assert(curr_span->down->head);
+            while((unsigned)curr_dim < fast_dim) {
+                HDassert(curr_span);
+                HDassert(curr_span->down);
+                HDassert(curr_span->down->head);
 
                 /* Increment current dimension to the next dimension down */
                 curr_dim++;
 
                 /* Set the new span for the next dimension down */
-                iter->u.hyp.span[curr_dim]=curr_span->down->head;
+                iter->u.hyp.span[curr_dim] = curr_span->down->head;
 
                 /* Advance span down the tree */
-                curr_span=curr_span->down->head;
+                curr_span = curr_span->down->head;
 
                 /* Reset the absolute offset for the dim */
-                abs_arr[curr_dim]=curr_span->low;
+                abs_arr[curr_dim] = curr_span->low;
             } /* end while */
 
             /* Verify that the curr_span points to the fastest dim */
-            assert(curr_span==iter->u.hyp.span[fast_dim]);
+            HDassert(curr_span == iter->u.hyp.span[fast_dim]);
         } /* end else */
 
         /* Reset the buffer offset */
-        for(i=0, loc_off=0; i<ndims; i++)
-            loc_off+=(abs_arr[i]+off_arr[i])*slab[i];
+        for(u = 0, loc_off = 0; u < ndims; u++)
+            loc_off += (abs_arr[u] + off_arr[u]) * slab[u];
     } /* end while */
 
     /* Decrement number of elements left in iterator */
-    io_used=(io_left-(io_bytes_left/elem_size));
-    iter->elmt_left-=io_used;
+    io_used = (io_left - (io_bytes_left / elem_size));
+    iter->elmt_left -= io_used;
 
     /* Set the number of sequences generated */
-    *nseq=curr_seq;
+    *nseq = curr_seq;
 
     /* Set the number of elements used */
-    *nelem=io_used;
+    *nelem = io_used;
 
-    FUNC_LEAVE_NOAPI(SUCCEED);
+    FUNC_LEAVE_NOAPI(SUCCEED)
 } /* end H5S_hyper_get_seq_list_gen() */
 
 
@@ -8085,11 +7996,12 @@ H5S_hyper_get_seq_list_opt(const H5S_t *space,H5S_sel_iter_t *iter,
     size_t act_blk_count;       /* Actual number of blocks to output */
     size_t total_rows;          /* Total number of entire rows to output */
     size_t curr_rows;           /* Current number of entire rows to output */
-    int fast_dim;       /* Rank of the fastest changing dimension for the dataspace */
+    unsigned fast_dim;  /* Rank of the fastest changing dimension for the dataspace */
+    unsigned ndims;     /* Number of dimensions of dataset */
     int temp_dim;       /* Temporary rank holder */
-    int ndims;          /* Number of dimensions of dataset */
     hsize_t acc;	/* Accumulator */
     hsize_t loc;        /* Coordinate offset */
+    unsigned u;         /* Local index variable */
     int i;              /* Local index variable */
     size_t curr_seq=0;  /* Current sequence being operated on */
     size_t actual_elem; /* The actual number of elements to count */
@@ -8115,34 +8027,34 @@ H5S_hyper_get_seq_list_opt(const H5S_t *space,H5S_sel_iter_t *iter,
     tdiminfo=iter->u.hyp.diminfo;
 
     /* Check if this is a "flattened" regular hyperslab selection */
-    if(iter->u.hyp.iter_rank!=0 && iter->u.hyp.iter_rank<space->extent.rank) {
+    if(iter->u.hyp.iter_rank != 0 && iter->u.hyp.iter_rank < space->extent.rank) {
         /* Set the aliases for a few important dimension ranks */
-        ndims=iter->u.hyp.iter_rank;
-        fast_dim=ndims-1;
+        ndims = iter->u.hyp.iter_rank;
+        fast_dim = ndims - 1;
 
         /* Set the local copy of the selection offset */
-        sel_off=iter->u.hyp.sel_off;
+        sel_off = iter->u.hyp.sel_off;
 
         /* Set up the pointer to the size of the memory space */
-        mem_size=iter->u.hyp.size;
+        mem_size = iter->u.hyp.size;
     } /* end if */
     else {
         /* Set the aliases for a few important dimension ranks */
-        ndims=space->extent.rank;
-        fast_dim=ndims-1;
+        ndims = space->extent.rank;
+        fast_dim = ndims - 1;
 
         /* Set the local copy of the selection offset */
-        sel_off=space->select.offset;
+        sel_off = space->select.offset;
 
         /* Set up the pointer to the size of the memory space */
-        mem_size=space->extent.size;
+        mem_size = space->extent.size;
     } /* end else */
 
     /* initialize row sizes for each dimension */
-    elem_size=iter->elmt_size;
-    for(i=(ndims-1),acc=elem_size; i>=0; i--) {
-        slab[i]=acc;
-        acc*=mem_size[i];
+    elem_size = iter->elmt_size;
+    for(i = (int)fast_dim, acc = elem_size; i >= 0; i--) {
+        slab[i] = acc;
+        acc *= mem_size[i];
     } /* end for */
 
     /* Calculate the number of elements to sequence through */
@@ -8166,8 +8078,8 @@ H5S_hyper_get_seq_list_opt(const H5S_t *space,H5S_sel_iter_t *iter,
         actual_elem=MIN(leftover,io_left);
 
         /* Compute the initial buffer offset */
-        for(i=0,loc=0; i<ndims; i++)
-            loc+=(iter->u.hyp.off[i]+sel_off[i])*slab[i];
+        for(u = 0, loc = 0; u < ndims; u++)
+            loc += (iter->u.hyp.off[u] + sel_off[u]) * slab[u];
 
         /* Add a new sequence */
         off[curr_seq]=loc;
@@ -8199,24 +8111,24 @@ H5S_hyper_get_seq_list_opt(const H5S_t *space,H5S_sel_iter_t *iter,
 
         /* Copy the location of the point to get */
         /* (Add in the selection offset) */
-        for(i=0; i<ndims; i++)
-            offset[i] = iter->u.hyp.off[i] + sel_off[i];
+        for(u = 0; u < ndims; u++)
+            offset[u] = iter->u.hyp.off[u] + sel_off[u];
 
         /* Compute the current "counts" for this location */
-        for(i=0; i<ndims; i++) {
-            if(tdiminfo[i].count==1) {
-                tmp_count[i] = 0;
-                tmp_block[i] = iter->u.hyp.off[i]-tdiminfo[i].start;
+        for(u = 0; u < ndims; u++) {
+            if(tdiminfo[u].count == 1) {
+                tmp_count[u] = 0;
+                tmp_block[u] = iter->u.hyp.off[u] - tdiminfo[u].start;
             } /* end if */
             else {
-                tmp_count[i] = (iter->u.hyp.off[i]-tdiminfo[i].start)/tdiminfo[i].stride;
-                tmp_block[i] = (iter->u.hyp.off[i]-tdiminfo[i].start)%tdiminfo[i].stride;
+                tmp_count[u] = (iter->u.hyp.off[u] - tdiminfo[u].start) / tdiminfo[u].stride;
+                tmp_block[u] = (iter->u.hyp.off[u] - tdiminfo[u].start) % tdiminfo[u].stride;
             } /* end else */
         } /* end for */
 
         /* Compute the initial buffer offset */
-        for(i=0,loc=0; i<ndims; i++)
-            loc+=offset[i]*slab[i];
+        for(u = 0, loc = 0; u < ndims; u++)
+            loc += offset[u] * slab[u];
 
         /* Set the number of elements to write each time */
         H5_ASSIGN_OVERFLOW(actual_elem,tdiminfo[fast_dim].block,hsize_t,size_t);
@@ -8239,12 +8151,12 @@ H5S_hyper_get_seq_list_opt(const H5S_t *space,H5S_sel_iter_t *iter,
         tot_blk_count=MIN(tot_blk_count,(maxseq-curr_seq));
 
         /* Compute the amount to wrap at the end of each row */
-        for(i=0; i<ndims; i++)
-            wrap[i]=(mem_size[i]-(tdiminfo[i].stride*tdiminfo[i].count))*slab[i];
+        for(u = 0; u < ndims; u++)
+            wrap[u] = (mem_size[u] - (tdiminfo[u].stride * tdiminfo[u].count)) * slab[u];
 
         /* Compute the amount to skip between blocks */
-        for(i=0; i<ndims; i++)
-            skip[i]=(tdiminfo[i].stride-tdiminfo[i].block)*slab[i];
+        for(u = 0; u < ndims; u++)
+            skip[u] = (tdiminfo[u].stride - tdiminfo[u].block) * slab[u];
 
         /* Check if there is a partial row left (with full blocks) */
         if(tmp_count[fast_dim]>0) {
@@ -8292,7 +8204,7 @@ H5S_hyper_get_seq_list_opt(const H5S_t *space,H5S_sel_iter_t *iter,
                 tmp_count[fast_dim]=0;
 
                 /* Increment the offset and count for the other dimensions */
-                temp_dim=fast_dim-1;
+                temp_dim = (int)fast_dim - 1;
                 while(temp_dim>=0) {
                     /* Move to the next row in the curent dimension */
                     offset[temp_dim]++;
@@ -8392,7 +8304,7 @@ H5S_hyper_get_seq_list_opt(const H5S_t *space,H5S_sel_iter_t *iter,
             loc += wrap[fast_dim];
 
             /* Increment the offset and count for the other dimensions */
-            temp_dim=fast_dim-1;
+            temp_dim = (int)fast_dim - 1;
             while(temp_dim>=0) {
                 /* Move to the next row in the curent dimension */
                 offset[temp_dim]++;
@@ -8491,20 +8403,20 @@ H5S_hyper_get_seq_list_opt(const H5S_t *space,H5S_sel_iter_t *iter,
 
         /* Update the iterator with the location we stopped */
         /* (Subtract out the selection offset) */
-        for(i=0; i<ndims; i++)
-            iter->u.hyp.off[i] = offset[i] - sel_off[i];
+        for(u = 0; u < ndims; u++)
+            iter->u.hyp.off[u] = offset[u] - sel_off[u];
 
         /* Decrement the number of elements left in selection */
-        iter->elmt_left-=(nelmts-io_left);
+        iter->elmt_left -= (nelmts - io_left);
     } /* end if */
 
     /* Set the number of sequences generated */
-    *nseq=curr_seq;
+    *nseq = curr_seq;
 
     /* Set the number of bytes used */
-    *nelem=start_io_left-io_left;
+    *nelem = start_io_left - io_left;
 
-    FUNC_LEAVE_NOAPI(SUCCEED);
+    FUNC_LEAVE_NOAPI(SUCCEED)
 } /* end H5S_hyper_get_seq_list_opt() */
 
 
diff --git a/src/H5Sprivate.h b/src/H5Sprivate.h
index d7faa89..0e67af1 100644
--- a/src/H5Sprivate.h
+++ b/src/H5Sprivate.h
@@ -257,7 +257,6 @@ H5_DLL htri_t H5S_hyper_intersect (H5S_t *space1, H5S_t *space2);
 #endif /* LATER */
 H5_DLL htri_t H5S_hyper_intersect_block (H5S_t *space, hsize_t *start, hsize_t *end);
 H5_DLL herr_t H5S_hyper_adjust_s(H5S_t *space, const hssize_t *offset);
-H5_DLL herr_t H5S_hyper_move(H5S_t *space, const hssize_t *offset);
 H5_DLL htri_t H5S_hyper_normalize_offset(H5S_t *space, hssize_t *old_offset);
 H5_DLL herr_t H5S_hyper_denormalize_offset(H5S_t *space, const hssize_t *old_offset);