[svn-r9727] Purpose:

    Bug Fix/Code Cleanup/Doc Cleanup/Optimization/Branch Sync :-)

Description:
    Generally speaking, this is the "signed->unsigned" change to selections.
However, in the process of merging code back, things got stickier and stickier
until I ended up doing a big "sync the two branches up" operation.  So... I
brought back all the "infrastructure" fixes from the development branch to the
release branch (which I think were actually making some improvement in
performance) as well as fixed several bugs which had been fixed in one branch,
but not the other.

    I've also tagged the repository before making this checkin with the label
"before_signed_unsigned_changes".

Platforms tested:
    FreeBSD 4.10 (sleipnir) w/parallel & fphdf5
    FreeBSD 4.10 (sleipnir) w/threadsafe
    FreeBSD 4.10 (sleipnir) w/backward compatibility
    Solaris 2.7 (arabica) w/"purify options"
    Solaris 2.8 (sol) w/FORTRAN & C++
    AIX 5.x (copper) w/parallel & FORTRAN
    IRIX64 6.5 (modi4) w/FORTRAN
    Linux 2.4 (heping) w/FORTRAN & C++


Misc. update:

1 files changed, 6 insertions, 6 deletions

diff --git a/tools/lib/h5diff.c b/tools/lib/h5diff.c
index c271f21..592b016 100644
--- a/tools/lib/h5diff.c
+++ b/tools/lib/h5diff.c
@@ -55,7 +55,7 @@ hsize_t h5diff(const char *fname1,
  int          nobjects1, nobjects2;
  trav_info_t  *info1=NULL;
  trav_info_t  *info2=NULL;
- hid_t        file1_id, file2_id; 
+ hid_t        file1_id=(-1), file2_id=(-1); 
  hsize_t      nfound=0;
 
  if (options->m_quiet && 
@@ -414,10 +414,10 @@ hsize_t diff( hid_t      file1_id,
               diff_opt_t *options, 
               H5G_obj_t  type )
 {
- hid_t       type1_id;
- hid_t       type2_id;
- hid_t       grp1_id;
- hid_t       grp2_id;
+ hid_t       type1_id=(-1);
+ hid_t       type2_id=(-1);
+ hid_t       grp1_id=(-1);
+ hid_t       grp2_id=(-1);
  int         ret;
  H5G_stat_t  sb1;
  H5G_stat_t  sb2;
@@ -436,7 +436,7 @@ hsize_t diff( hid_t      file1_id,
   /* always print name */
   if (options->m_verbose)
   {
-   if (print_objname(options,1))
+   if (print_objname(options,(hsize_t)1))
     printf( "Dataset:     <%s> and <%s>\n",path1,path2);
    nfound=diff_dataset(file1_id,file2_id,path1,path2,options);