[svn-r150] Changes since 19971219

----------------------

./src/H5private.h
        Changed HDF5_MAJOR_VERSION to 5

./src/H5Aprivate.h
./src/H5Apublic.h
        Added group atoms.

./src/H5D.c
./src/H5P.c
./test/istore.c
./test/tohdr.c
./test/tstab.c
        Updated for symbol table interface changes.

./src/H5F.c
./src/H5Fprivate.h
        Simpler handling of special case files: empty files and files
        with a single object.

./src/H5G.c
./src/H5Gent.c
./src/H5Gnode.c
./src/H5Gpkg.h
./src/H5Gprivate.h
./src/H5Gpublic.h
./src/H5Gshad.c         (DELETED)
./src/H5Gstab.c
./src/Makefile.in
        Removed shadows, simplifying code.  Symbol table entries are
        allowed to cache only constant meta data.  Fixed naming.

./src/H5O.c
./src/H5Oprivate.h
        Access to object headers is always done through a symbol table
        entry instead of a file address.  Added stubs for opening and
        closing object headers to be used when deletion is implemented.

1 files changed, 35 insertions, 33 deletions

diff --git a/src/H5Gent.c b/src/H5Gent.c
index b8510f7..cc33d4c 100644
--- a/src/H5Gent.c
+++ b/src/H5Gent.c
@@ -364,35 +364,42 @@ H5G_ent_encode (H5F_t *f, uint8 **pp, H5G_entry_t *ent)
    /* check arguments */
    assert (f);
    assert (pp);
-   assert (ent);
-
-   /* encode header */
-   H5F_encode_length (f, *pp, ent->name_off);
-   H5F_addr_encode (f, pp, &(ent->header));
-   UINT32ENCODE (*pp, ent->type);
-
-   /* encode scratch-pad */
-   switch (ent->type) {
-   case H5G_NOTHING_CACHED:
-      break;
-
-   case H5G_CACHED_SDSPACE:
-      assert (5*4 <= H5G_SIZEOF_SCRATCH);
-      UINT32ENCODE (*pp, ent->cache.sdspace.ndim);
-      UINT32ENCODE (*pp, ent->cache.sdspace.dim[0]);
-      UINT32ENCODE (*pp, ent->cache.sdspace.dim[1]);
-      UINT32ENCODE (*pp, ent->cache.sdspace.dim[2]);
-      UINT32ENCODE (*pp, ent->cache.sdspace.dim[3]);
-      break;
 
-   case H5G_CACHED_STAB:
-      assert (2*H5F_SIZEOF_ADDR (f) <= H5G_SIZEOF_SCRATCH);
-      H5F_addr_encode (f, pp, &(ent->cache.stab.btree_addr));
-      H5F_addr_encode (f, pp, &(ent->cache.stab.heap_addr));
-      break;
-
-   default:
-      HDabort();
+   if (ent) {
+      /* encode header */
+      H5F_encode_length (f, *pp, ent->name_off);
+      H5F_addr_encode (f, pp, &(ent->header));
+      UINT32ENCODE (*pp, ent->type);
+
+      /* encode scratch-pad */
+      switch (ent->type) {
+      case H5G_NOTHING_CACHED:
+	 break;
+
+      case H5G_CACHED_SDSPACE:
+	 assert (5*4 <= H5G_SIZEOF_SCRATCH);
+	 UINT32ENCODE (*pp, ent->cache.sdspace.ndim);
+	 UINT32ENCODE (*pp, ent->cache.sdspace.dim[0]);
+	 UINT32ENCODE (*pp, ent->cache.sdspace.dim[1]);
+	 UINT32ENCODE (*pp, ent->cache.sdspace.dim[2]);
+	 UINT32ENCODE (*pp, ent->cache.sdspace.dim[3]);
+	 break;
+
+      case H5G_CACHED_STAB:
+	 assert (2*H5F_SIZEOF_ADDR (f) <= H5G_SIZEOF_SCRATCH);
+	 H5F_addr_encode (f, pp, &(ent->cache.stab.btree_addr));
+	 H5F_addr_encode (f, pp, &(ent->cache.stab.heap_addr));
+	 break;
+
+      default:
+	 HDabort();
+      }
+   } else {
+      haddr_t undef;
+      H5F_encode_length (f, *pp, 0);
+      H5F_addr_undef (&undef);
+      H5F_addr_encode (f, pp, &undef);
+      UINT32ENCODE (*pp, H5G_NOTHING_CACHED);
    }
 
    /* fill with zero */
@@ -443,11 +450,6 @@ H5G_ent_debug (H5F_t *f, H5G_entry_t *ent, FILE *stream, intn indent,
    fprintf (stream, "%*s%-*s %s\n", indent, "", fwidth,
 	    "Dirty:",
 	    ent->dirty ? "Yes" : "No");
-   fprintf (stream, "%*s%-*s %s\n", indent, "", fwidth,
-	    "Has a shadow:",
-	    H5G_shadow_p (ent)?"This is a shadow!" :
-	       (ent->shadow ? "Yes" : "No"));
-      
    fprintf (stream, "%*s%-*s ", indent, "", fwidth,
 	    "Symbol type:");
    switch (ent->type) {