[svn-r7793] Purpose:

h5diff new features

Description:

added the diff for variable lenght, opaque, enum, and bitfield datasets

Solution:

Platforms tested:
linux
solaris 2.7
IRIX


Misc. update:

33 files changed, 238 insertions, 237 deletions

diff --git a/tools/lib/h5diff.c b/tools/lib/h5diff.c
index 9f20f4a..c7dd9e5 100644
--- a/tools/lib/h5diff.c
+++ b/tools/lib/h5diff.c
@@ -366,8 +366,10 @@ int diff( hid_t file1_id,
   break;
  } 
  
+#if 0
  if (options->verbose) 
   printf("\n");
+#endif
  return nfound;
 }
 
diff --git a/tools/lib/h5diff_array.c b/tools/lib/h5diff_array.c
index 831edc9..b8d2a12 100644
--- a/tools/lib/h5diff_array.c
+++ b/tools/lib/h5diff_array.c
@@ -56,11 +56,18 @@ int diff_native_uchar(unsigned char *mem1,
  *
  * Date: May 30, 2003
  *
- * Modifications: October 29, 2003
+ * Modifications: October 30, 2003
  *  Added support for H5T_COMPOUND types; to handle compounds a recursive
  *  function is called. because of this , the data is compared datum by datum
  *  instead of the previous cycle that compared all the array  the native 
  *  types 
+ * Added support for  
+ *  H5T_STRING                          
+ *  H5T_BITFIELD                          
+ *  H5T_OPAQUE           
+ *  H5T_ENUM		 
+ *  H5T_VLEN		
+ *  H5T_ARRAY	                 
  *
  *-------------------------------------------------------------------------
  */
@@ -79,6 +86,8 @@ int diff_array( void *_mem1,
  size_t        size;              /* size of datum */
  unsigned char *mem1 = (unsigned char*)_mem1;
  unsigned char *mem2 = (unsigned char*)_mem2;
+ unsigned char *tmp1;
+ unsigned char *tmp2;
  int           acc[32];           /* accumulator and matrix position */
  int           pos[32];
  unsigned      i;
@@ -89,25 +98,48 @@ int diff_array( void *_mem1,
  {
   acc[j]=acc[j+1]*(int)dims[j+1];
  }
- 
-  /* Get the size. */
- size = H5Tget_size( m_type );
-  
- for ( i = 0; i < nelmts; i++)
+
+
+ if(H5Tis_variable_str(m_type)) 
  {
-  nfound+=diff_array_mem(
-   mem1 + i * size,
-   mem2 + i * size, /* offset */
+  tmp1 = ((unsigned char**)mem1)[0]; 
+  tmp2 = ((unsigned char**)mem2)[0]; 
+		nfound+=diff_array_mem(
+   tmp1,
+   tmp2, 
    m_type,
-   i,
+   0,
    rank,
    acc,
    pos,
    options,
    name1,
    name2);
-  if (options->n && nfound>=options->count)
-   return nfound;
+ }
+
+ else
+
+ {
+  
+  /* get the size. */
+  size = H5Tget_size( m_type );
+  
+  for ( i = 0; i < nelmts; i++)
+  {
+   nfound+=diff_array_mem(
+    mem1 + i * size,
+    mem2 + i * size, /* offset */
+    m_type,
+    i,
+    rank,
+    acc,
+    pos,
+    options,
+    name1,
+    name2);
+   if (options->n && nfound>=options->count)
+    return nfound;
+  }
  }
   
  return nfound;
@@ -153,10 +185,11 @@ int diff_array_mem( void       *_mem1,
  size_t        offset;
  int           nmembs;
  int           j;
- /* for H5T_ARRAY */
- hsize_t       adims[H5S_MAX_RANK],anelmts,andims;
- hid_t         amemb_id;
- size_t        asize;
+ hsize_t       dims[H5S_MAX_RANK];
+ hsize_t       nelmts;
+ hsize_t       ndims;
+ size_t        size;
+
 
  /* Build default formats for long long types */
  sprintf(fmt_llong,  "%%%sd              %%%sd               %%%sd\n", 
@@ -178,6 +211,12 @@ int diff_array_mem( void       *_mem1,
  default:
   assert(0);
   break;
+ case H5T_TIME:
+  assert(0);
+  break;
+ case H5T_REFERENCE:
+  assert(0);
+  break;
 /*-------------------------------------------------------------------------
  * H5T_COMPOUND
  *-------------------------------------------------------------------------
@@ -188,40 +227,70 @@ int diff_array_mem( void       *_mem1,
   {
    offset    = H5Tget_member_offset(m_type, j);
    memb_type = H5Tget_member_type(m_type, j);
-   nfound+=diff_array_mem(mem1+offset,
-                          mem2+offset,
-                          memb_type,
-                          i,
-                          rank,
-                          acc,
-                          pos,
-                          options,
-                          obj1,
-                          obj2);
+   nfound+=diff_array_mem(
+    mem1+offset,
+    mem2+offset,
+    memb_type,
+    i,
+    rank,
+    acc,
+    pos,
+    options,
+    obj1,
+    obj2);
    H5Tclose(memb_type);
   }
   break;
- case H5T_TIME:
-  break;
+
 /*-------------------------------------------------------------------------
- * H5T_STRING
+ * H5T_STRING, H5T_BITFIELD, H5T_OPAQUE, H5T_REFERENCE, H5T_ENUM:
  *-------------------------------------------------------------------------
  */
  case H5T_STRING:
+  
+  if(H5Tis_variable_str(m_type)) 
+   type_size = HDstrlen(mem1);
+  else 
+   type_size = H5Tget_size(m_type);
+  
+  for (u=0; u<type_size; u++)
+   nfound+=diff_native_uchar(
+   mem1 + u,
+   mem2 + u, /* offset */
+   type_size,
+   u, 
+   rank, 
+   acc,
+   pos,
+   options, 
+   obj1, 
+   obj2,
+   ph);
+  
+
+  break;
+
+/*-------------------------------------------------------------------------
+ * H5T_BITFIELD, H5T_OPAQUE, H5T_REFERENCE, H5T_ENUM:
+ *-------------------------------------------------------------------------
+ */
+ case H5T_BITFIELD:
+ case H5T_OPAQUE:
+ case H5T_ENUM:
 
   for (u=0; u<type_size; u++)
    nfound+=diff_native_uchar(
-                    mem1 + u,
-                    mem2 + u, /* offset */
-                    type_size,
-                    u, 
-                    rank, 
-                    acc,
-                    pos,
-                    options, 
-                    obj1, 
-                    obj2,
-                    ph);
+   mem1 + u,
+   mem2 + u, /* offset */
+   type_size,
+   u, 
+   rank, 
+   acc,
+   pos,
+   options, 
+   obj1, 
+   obj2,
+   ph);
 
   
   break;
@@ -231,23 +300,20 @@ int diff_array_mem( void       *_mem1,
  */
  case H5T_ARRAY:
   /* get the array's base datatype for each element */
-  amemb_id = H5Tget_super(m_type);
-  asize    = H5Tget_size(amemb_id);
-  andims   = H5Tget_array_ndims(m_type);
-  H5Tget_array_dims(m_type, adims, NULL);
-  assert(andims >= 1 && andims <= H5S_MAX_RANK);
+  memb_type = H5Tget_super(m_type);
+  size      = H5Tget_size(memb_type);
+  ndims     = H5Tget_array_ndims(m_type);
+  H5Tget_array_dims(m_type, dims, NULL);
+  assert(ndims >= 1 && ndims <= H5S_MAX_RANK);
   
   /* calculate the number of array elements */
-  for (u = 0, anelmts = 1; u <andims; u++){
-   anelmts *= adims[u];
-  } 
-
-  for (u = 0; u < anelmts; u++) 
-  {
+  for (u = 0, nelmts = 1; u <ndims; u++)
+   nelmts *= dims[u];
+  for (u = 0; u < nelmts; u++) 
    nfound+=diff_array_mem(
-    mem1+u*asize,
-    mem2+u*asize,
-    amemb_id,
+    mem1 + u * size,
+    mem2 + u * size, /* offset */
+    memb_type,
     u,
     rank,
     acc,
@@ -255,19 +321,37 @@ int diff_array_mem( void       *_mem1,
     options,
     obj1,
     obj2);
-  }
-  H5Tclose(amemb_id);
+  H5Tclose(memb_type);
   break;
 
- case H5T_BITFIELD:
-  break;
- case H5T_OPAQUE:
-  break;
- case H5T_REFERENCE:
-  break;
- case H5T_ENUM:
-  break;
+/*-------------------------------------------------------------------------
+ * H5T_VLEN
+ *-------------------------------------------------------------------------
+ */
  case H5T_VLEN:
+
+  /* get the VL sequences's base datatype for each element */
+  memb_type = H5Tget_super(m_type);
+  size      = H5Tget_size(memb_type);
+    
+  /* get the number of sequence elements */
+  nelmts = ((hvl_t *)mem1)->len;
+  
+  for (j = 0; j < nelmts; j++) 
+    nfound+=diff_array_mem(
+    ((char *)(((hvl_t *)mem1)->p)) + j * size,
+    ((char *)(((hvl_t *)mem2)->p)) + j * size, /* offset */
+    memb_type,
+    j,
+    rank,
+    acc,
+    pos,
+    options,
+    obj1,
+    obj2);
+  
+  H5Tclose(memb_type);
+  
   break;
  case H5T_INTEGER:
 
diff --git a/tools/lib/h5diff_dset.c b/tools/lib/h5diff_dset.c
index 0db6bf9..f40122e 100644
--- a/tools/lib/h5diff_dset.c
+++ b/tools/lib/h5diff_dset.c
@@ -162,17 +162,16 @@ int diff_dataset( hid_t file1_id,
  case H5T_COMPOUND:
  case H5T_STRING:
  case H5T_ARRAY:
-
-#endif
-
-
- case H5T_TIME:
  case H5T_BITFIELD:
  case H5T_OPAQUE:
-
- case H5T_REFERENCE:
  case H5T_ENUM:
  case H5T_VLEN:
+#endif
+
+ case H5T_TIME:
+ case H5T_REFERENCE:
+
+
   if (options->verbose ) {
    printf("Comparison not supported\n");
    printf("<%s> is of class %s and <%s> is of class %s\n", 
@@ -194,7 +193,11 @@ int diff_dataset( hid_t file1_id,
  storage_size1=H5Dget_storage_size(dset1_id);
  storage_size2=H5Dget_storage_size(dset2_id);
  if (storage_size1<=0 && storage_size2<=0)
+ {
+  if (options->verbose) 
+   printf("<%s> and <%s> are empty datasets\n", obj1_name, obj2_name);
   goto out;
+ }
 
 
 /*-------------------------------------------------------------------------
@@ -327,6 +330,7 @@ int diff_dataset( hid_t file1_id,
  *-------------------------------------------------------------------------
  */
 
+#if 0
  can1=diff_can(m_type1);
  can2=diff_can(m_type2);
  if ( (can1==0 || can2==0))
@@ -340,6 +344,7 @@ int diff_dataset( hid_t file1_id,
   }
   goto out;
  }
+#endif
 
 /*-------------------------------------------------------------------------
  * check for different signed/unsigned types
diff --git a/tools/testfiles/h5diff_11.txt b/tools/testfiles/h5diff_11.txt
index efa6018..eba6de1 100644
--- a/tools/testfiles/h5diff_11.txt
+++ b/tools/testfiles/h5diff_11.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset3a dset3b
 Comparing </dset3b> with </dset3b>
 0 differences found
 
-
diff --git a/tools/testfiles/h5diff_12.txt b/tools/testfiles/h5diff_12.txt
index 80614c0..5fbd117 100644
--- a/tools/testfiles/h5diff_12.txt
+++ b/tools/testfiles/h5diff_12.txt
@@ -9,4 +9,3 @@ position        dset1           dset2           difference
 [ 1 0 ]          1               1.01            0.01           
 2 differences found
 
-
diff --git a/tools/testfiles/h5diff_13.txt b/tools/testfiles/h5diff_13.txt
index 9fd8953..9d85608 100644
--- a/tools/testfiles/h5diff_13.txt
+++ b/tools/testfiles/h5diff_13.txt
@@ -13,4 +13,3 @@ position        dset3           dset4           difference
 [ 2 1 ]          100             200             100            
 6 differences found
 
-
diff --git a/tools/testfiles/h5diff_14.txt b/tools/testfiles/h5diff_14.txt
index a20dd19..c69557c 100644
--- a/tools/testfiles/h5diff_14.txt
+++ b/tools/testfiles/h5diff_14.txt
@@ -13,4 +13,3 @@ position        dset3           dset4           difference      relative
 [ 2 1 ]          100             200             100             1             
 6 differences found
 
-
diff --git a/tools/testfiles/h5diff_20.txt b/tools/testfiles/h5diff_20.txt
index 426db99..8403eed 100644
--- a/tools/testfiles/h5diff_20.txt
+++ b/tools/testfiles/h5diff_20.txt
@@ -5,4 +5,3 @@ $h5diff file3.h5 file3.h5 -v dset group
 Comparison not supported
 </group> is of type H5G_GROUP and </group> is of type H5G_GROUP
 
-
diff --git a/tools/testfiles/h5diff_21.txt b/tools/testfiles/h5diff_21.txt
index 626dbc6..31b103e 100644
--- a/tools/testfiles/h5diff_21.txt
+++ b/tools/testfiles/h5diff_21.txt
@@ -5,4 +5,3 @@ $h5diff file3.h5 file3.h5 -v dset link
 Comparison not supported
 </link> is of type H5G_LINK and </link> is of type H5G_LINK
 
-
diff --git a/tools/testfiles/h5diff_22.txt b/tools/testfiles/h5diff_22.txt
index 8001fc1..ac367bc 100644
--- a/tools/testfiles/h5diff_22.txt
+++ b/tools/testfiles/h5diff_22.txt
@@ -5,4 +5,3 @@ $h5diff file3.h5 file3.h5 -v dset type
 Comparison not supported
 </type> is of type H5G_TYPE and </type> is of type H5G_TYPE
 
-
diff --git a/tools/testfiles/h5diff_23.txt b/tools/testfiles/h5diff_23.txt
index 9f4394f..d3796e7 100644
--- a/tools/testfiles/h5diff_23.txt
+++ b/tools/testfiles/h5diff_23.txt
@@ -5,4 +5,3 @@ $h5diff file3.h5 file3.h5 -v group group
 Comparison not supported
 </group> is of type H5G_GROUP and </group> is of type H5G_GROUP
 
-
diff --git a/tools/testfiles/h5diff_24.txt b/tools/testfiles/h5diff_24.txt
index c7235f2..228d857 100644
--- a/tools/testfiles/h5diff_24.txt
+++ b/tools/testfiles/h5diff_24.txt
@@ -5,4 +5,3 @@ $h5diff file3.h5 file3.h5 -v type type
 Comparison not supported
 </type> is of type H5G_TYPE and </type> is of type H5G_TYPE
 
-
diff --git a/tools/testfiles/h5diff_25.txt b/tools/testfiles/h5diff_25.txt
index 7ca5f6e..56ea44e 100644
--- a/tools/testfiles/h5diff_25.txt
+++ b/tools/testfiles/h5diff_25.txt
@@ -5,4 +5,3 @@ $h5diff file3.h5 file3.h5 -v link link
 Comparison not supported
 </link> is of type H5G_LINK and </link> is of type H5G_LINK
 
-
diff --git a/tools/testfiles/h5diff_30.txt b/tools/testfiles/h5diff_30.txt
index d0a072e..ba70578 100644
--- a/tools/testfiles/h5diff_30.txt
+++ b/tools/testfiles/h5diff_30.txt
@@ -16,24 +16,15 @@ file1     file2
     x      x    /string        
     x      x    /vlen          
 
-
-Comparison not supported
-</bitfield> is of class H5T_BITFIELD and </bitfield> is of class H5T_BITFIELD
-
-
-Comparison not supported
-</enum> is of class H5T_ENUM and </enum> is of class H5T_ENUM
-
-
-
-Comparison not supported
-</opaque> is of class H5T_OPAQUE and </opaque> is of class H5T_OPAQUE
-
+</array> and </array> are empty datasets
+</bitfield> and </bitfield> are empty datasets
+</compound> and </compound> are empty datasets
+</enum> and </enum> are empty datasets
+</float> and </float> are empty datasets
+</integer> and </integer> are empty datasets
+</opaque> and </opaque> are empty datasets
 Comparison not supported
 </ref> is of class H5T_REFERENCE and </ref> is of class H5T_REFERENCE
-
-
-Comparison not supported
-</vlen> is of class H5T_VLEN and </vlen> is of class H5T_VLEN
-
+</string> and </string> are empty datasets
+</vlen> and </vlen> are empty datasets
 
diff --git a/tools/testfiles/h5diff_31.txt b/tools/testfiles/h5diff_31.txt
index 18b51fc..93cac4e 100644
--- a/tools/testfiles/h5diff_31.txt
+++ b/tools/testfiles/h5diff_31.txt
@@ -16,24 +16,15 @@ file1     file2
     x      x    /string        
     x      x    /vlen          
 
-
-Comparison not supported
-</bitfield> is of class H5T_BITFIELD and </bitfield> is of class H5T_BITFIELD
-
-
-Comparison not supported
-</enum> is of class H5T_ENUM and </enum> is of class H5T_ENUM
-
-
-
-Comparison not supported
-</opaque> is of class H5T_OPAQUE and </opaque> is of class H5T_OPAQUE
-
+</array> and </array> are empty datasets
+</bitfield> and </bitfield> are empty datasets
+</compound> and </compound> are empty datasets
+</enum> and </enum> are empty datasets
+</float> and </float> are empty datasets
+</integer> and </integer> are empty datasets
+</opaque> and </opaque> are empty datasets
 Comparison not supported
 </ref> is of class H5T_REFERENCE and </ref> is of class H5T_REFERENCE
-
-
-Comparison not supported
-</vlen> is of class H5T_VLEN and </vlen> is of class H5T_VLEN
-
+</string> and </string> are empty datasets
+</vlen> and </vlen> are empty datasets
 
diff --git a/tools/testfiles/h5diff_32.txt b/tools/testfiles/h5diff_32.txt
index 904bd5b..e9e14d8 100644
--- a/tools/testfiles/h5diff_32.txt
+++ b/tools/testfiles/h5diff_32.txt
@@ -16,24 +16,15 @@ file1     file2
     x      x    /string        
     x      x    /vlen          
 
-
-Comparison not supported
-</bitfield> is of class H5T_BITFIELD and </bitfield> is of class H5T_BITFIELD
-
-
-Comparison not supported
-</enum> is of class H5T_ENUM and </enum> is of class H5T_ENUM
-
-
-
-Comparison not supported
-</opaque> is of class H5T_OPAQUE and </opaque> is of class H5T_OPAQUE
-
+</array> and </array> are empty datasets
+</bitfield> and </bitfield> are empty datasets
+</compound> and </compound> are empty datasets
+</enum> and </enum> are empty datasets
+</float> and </float> are empty datasets
+</integer> and </integer> are empty datasets
+</opaque> and </opaque> are empty datasets
 Comparison not supported
 </ref> is of class H5T_REFERENCE and </ref> is of class H5T_REFERENCE
-
-
-Comparison not supported
-</vlen> is of class H5T_VLEN and </vlen> is of class H5T_VLEN
-
+</string> and </string> are empty datasets
+</vlen> and </vlen> are empty datasets
 
diff --git a/tools/testfiles/h5diff_33.txt b/tools/testfiles/h5diff_33.txt
index 3829c25..549db5e 100644
--- a/tools/testfiles/h5diff_33.txt
+++ b/tools/testfiles/h5diff_33.txt
@@ -16,24 +16,15 @@ file1     file2
     x      x    /string        
     x      x    /vlen          
 
-
-Comparison not supported
-</bitfield> is of class H5T_BITFIELD and </bitfield> is of class H5T_BITFIELD
-
-
-Comparison not supported
-</enum> is of class H5T_ENUM and </enum> is of class H5T_ENUM
-
-
-
-Comparison not supported
-</opaque> is of class H5T_OPAQUE and </opaque> is of class H5T_OPAQUE
-
+</array> and </array> are empty datasets
+</bitfield> and </bitfield> are empty datasets
+</compound> and </compound> are empty datasets
+</enum> and </enum> are empty datasets
+</float> and </float> are empty datasets
+</integer> and </integer> are empty datasets
+</opaque> and </opaque> are empty datasets
 Comparison not supported
 </ref> is of class H5T_REFERENCE and </ref> is of class H5T_REFERENCE
-
-
-Comparison not supported
-</vlen> is of class H5T_VLEN and </vlen> is of class H5T_VLEN
-
+</string> and </string> are empty datasets
+</vlen> and </vlen> are empty datasets
 
diff --git a/tools/testfiles/h5diff_34.txt b/tools/testfiles/h5diff_34.txt
index 9261800..7c4b9c4 100644
--- a/tools/testfiles/h5diff_34.txt
+++ b/tools/testfiles/h5diff_34.txt
@@ -16,24 +16,15 @@ file1     file2
     x      x    /string        
     x      x    /vlen          
 
-
-Comparison not supported
-</bitfield> is of class H5T_BITFIELD and </bitfield> is of class H5T_BITFIELD
-
-
-Comparison not supported
-</enum> is of class H5T_ENUM and </enum> is of class H5T_ENUM
-
-
-
-Comparison not supported
-</opaque> is of class H5T_OPAQUE and </opaque> is of class H5T_OPAQUE
-
+</array> and </array> are empty datasets
+</bitfield> and </bitfield> are empty datasets
+</compound> and </compound> are empty datasets
+</enum> and </enum> are empty datasets
+</float> and </float> are empty datasets
+</integer> and </integer> are empty datasets
+</opaque> and </opaque> are empty datasets
 Comparison not supported
 </ref> is of class H5T_REFERENCE and </ref> is of class H5T_REFERENCE
-
-
-Comparison not supported
-</vlen> is of class H5T_VLEN and </vlen> is of class H5T_VLEN
-
+</string> and </string> are empty datasets
+</vlen> and </vlen> are empty datasets
 
diff --git a/tools/testfiles/h5diff_35.txt b/tools/testfiles/h5diff_35.txt
index 5b18d3f..a111a2f 100644
--- a/tools/testfiles/h5diff_35.txt
+++ b/tools/testfiles/h5diff_35.txt
@@ -16,24 +16,15 @@ file1     file2
     x      x    /string        
     x      x    /vlen          
 
-
-Comparison not supported
-</bitfield> is of class H5T_BITFIELD and </bitfield> is of class H5T_BITFIELD
-
-
-Comparison not supported
-</enum> is of class H5T_ENUM and </enum> is of class H5T_ENUM
-
-
-
-Comparison not supported
-</opaque> is of class H5T_OPAQUE and </opaque> is of class H5T_OPAQUE
-
+</array> and </array> are empty datasets
+</bitfield> and </bitfield> are empty datasets
+</compound> and </compound> are empty datasets
+</enum> and </enum> are empty datasets
+</float> and </float> are empty datasets
+</integer> and </integer> are empty datasets
+</opaque> and </opaque> are empty datasets
 Comparison not supported
 </ref> is of class H5T_REFERENCE and </ref> is of class H5T_REFERENCE
-
-
-Comparison not supported
-</vlen> is of class H5T_VLEN and </vlen> is of class H5T_VLEN
-
+</string> and </string> are empty datasets
+</vlen> and </vlen> are empty datasets
 
diff --git a/tools/testfiles/h5diff_36.txt b/tools/testfiles/h5diff_36.txt
index 01f6c07..da9257b 100644
--- a/tools/testfiles/h5diff_36.txt
+++ b/tools/testfiles/h5diff_36.txt
@@ -16,24 +16,15 @@ file1     file2
     x      x    /string        
     x      x    /vlen          
 
-
-Comparison not supported
-</bitfield> is of class H5T_BITFIELD and </bitfield> is of class H5T_BITFIELD
-
-
-Comparison not supported
-</enum> is of class H5T_ENUM and </enum> is of class H5T_ENUM
-
-
-
-Comparison not supported
-</opaque> is of class H5T_OPAQUE and </opaque> is of class H5T_OPAQUE
-
+</array> and </array> are empty datasets
+</bitfield> and </bitfield> are empty datasets
+</compound> and </compound> are empty datasets
+</enum> and </enum> are empty datasets
+</float> and </float> are empty datasets
+</integer> and </integer> are empty datasets
+</opaque> and </opaque> are empty datasets
 Comparison not supported
 </ref> is of class H5T_REFERENCE and </ref> is of class H5T_REFERENCE
-
-
-Comparison not supported
-</vlen> is of class H5T_VLEN and </vlen> is of class H5T_VLEN
-
+</string> and </string> are empty datasets
+</vlen> and </vlen> are empty datasets
 
diff --git a/tools/testfiles/h5diff_37.txt b/tools/testfiles/h5diff_37.txt
index ce746a8..08e2309 100644
--- a/tools/testfiles/h5diff_37.txt
+++ b/tools/testfiles/h5diff_37.txt
@@ -16,24 +16,15 @@ file1     file2
     x      x    /string        
     x      x    /vlen          
 
-
-Comparison not supported
-</bitfield> is of class H5T_BITFIELD and </bitfield> is of class H5T_BITFIELD
-
-
-Comparison not supported
-</enum> is of class H5T_ENUM and </enum> is of class H5T_ENUM
-
-
-
-Comparison not supported
-</opaque> is of class H5T_OPAQUE and </opaque> is of class H5T_OPAQUE
-
+</array> and </array> are empty datasets
+</bitfield> and </bitfield> are empty datasets
+</compound> and </compound> are empty datasets
+</enum> and </enum> are empty datasets
+</float> and </float> are empty datasets
+</integer> and </integer> are empty datasets
+</opaque> and </opaque> are empty datasets
 Comparison not supported
 </ref> is of class H5T_REFERENCE and </ref> is of class H5T_REFERENCE
-
-
-Comparison not supported
-</vlen> is of class H5T_VLEN and </vlen> is of class H5T_VLEN
-
+</string> and </string> are empty datasets
+</vlen> and </vlen> are empty datasets
 
diff --git a/tools/testfiles/h5diff_38.txt b/tools/testfiles/h5diff_38.txt
index 82472e3..35e3b62 100644
--- a/tools/testfiles/h5diff_38.txt
+++ b/tools/testfiles/h5diff_38.txt
@@ -2,5 +2,5 @@
 Expected output for 'h5diff file4.h5 file4.h5 -v integer float'
 #############################
 $h5diff file4.h5 file4.h5 -v integer float
-
+</float> and </float> are empty datasets
 
diff --git a/tools/testfiles/h5diff_40.txt b/tools/testfiles/h5diff_40.txt
index 72d2e7d..bdc17e6 100644
--- a/tools/testfiles/h5diff_40.txt
+++ b/tools/testfiles/h5diff_40.txt
@@ -2,5 +2,5 @@
 Expected output for 'h5diff file5.h5 file5.h5 -v dset1 dset2'
 #############################
 $h5diff file5.h5 file5.h5 -v dset1 dset2
-
+</dset2> and </dset2> are empty datasets
 
diff --git a/tools/testfiles/h5diff_41.txt b/tools/testfiles/h5diff_41.txt
index f2dbd25..5e93e43 100644
--- a/tools/testfiles/h5diff_41.txt
+++ b/tools/testfiles/h5diff_41.txt
@@ -2,5 +2,5 @@
 Expected output for 'h5diff file5.h5 file5.h5 -v dset3 dset4'
 #############################
 $h5diff file5.h5 file5.h5 -v dset3 dset4
-
+</dset4> and </dset4> are empty datasets
 
diff --git a/tools/testfiles/h5diff_42.txt b/tools/testfiles/h5diff_42.txt
index b71acd0..4614668 100644
--- a/tools/testfiles/h5diff_42.txt
+++ b/tools/testfiles/h5diff_42.txt
@@ -2,5 +2,5 @@
 Expected output for 'h5diff file5.h5 file5.h5 -v dset5 dset6'
 #############################
 $h5diff file5.h5 file5.h5 -v dset5 dset6
-
+</dset6> and </dset6> are empty datasets
 
diff --git a/tools/testfiles/h5diff_50.txt b/tools/testfiles/h5diff_50.txt
index e470a0a..2b4a547 100644
--- a/tools/testfiles/h5diff_50.txt
+++ b/tools/testfiles/h5diff_50.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset0a dset0b
 Comparing </dset0b> with </dset0b>
 0 differences found
 
-
diff --git a/tools/testfiles/h5diff_51.txt b/tools/testfiles/h5diff_51.txt
index eace500..8c98dc9 100644
--- a/tools/testfiles/h5diff_51.txt
+++ b/tools/testfiles/h5diff_51.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset1a dset1b
 Comparing </dset1b> with </dset1b>
 0 differences found
 
-
diff --git a/tools/testfiles/h5diff_52.txt b/tools/testfiles/h5diff_52.txt
index f662282..b148a45 100644
--- a/tools/testfiles/h5diff_52.txt
+++ b/tools/testfiles/h5diff_52.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset2a dset2b
 Comparing </dset2b> with </dset2b>
 0 differences found
 
-
diff --git a/tools/testfiles/h5diff_53.txt b/tools/testfiles/h5diff_53.txt
index 90819a8..f34c172 100644
--- a/tools/testfiles/h5diff_53.txt
+++ b/tools/testfiles/h5diff_53.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset3a dset4b
 Comparing </dset4b> with </dset4b>
 0 differences found
 
-
diff --git a/tools/testfiles/h5diff_54.txt b/tools/testfiles/h5diff_54.txt
index a8d82e9..eba9116 100644
--- a/tools/testfiles/h5diff_54.txt
+++ b/tools/testfiles/h5diff_54.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset4a dset4b
 Comparing </dset4b> with </dset4b>
 0 differences found
 
-
diff --git a/tools/testfiles/h5diff_55.txt b/tools/testfiles/h5diff_55.txt
index ddb9531..2b9f24f 100644
--- a/tools/testfiles/h5diff_55.txt
+++ b/tools/testfiles/h5diff_55.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset5a dset5b
 Comparing </dset5b> with </dset5b>
 0 differences found
 
-
diff --git a/tools/testfiles/h5diff_56.txt b/tools/testfiles/h5diff_56.txt
index c452459..d37dd59 100644
--- a/tools/testfiles/h5diff_56.txt
+++ b/tools/testfiles/h5diff_56.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset6a dset6b
 Comparing </dset6b> with </dset6b>
 0 differences found
 
-
diff --git a/tools/testfiles/h5diff_57.txt b/tools/testfiles/h5diff_57.txt
index 654b4df..67dfad1 100644
--- a/tools/testfiles/h5diff_57.txt
+++ b/tools/testfiles/h5diff_57.txt
@@ -5,4 +5,3 @@ $h5diff file6.h5 file6.h5 -v dset7a dset7b
 Comparing </dset7b> with </dset7b>
 0 differences found
 
-