[svn-r22827] HDFFV-8007: Add missing H5O Fortran functions.

Tested: jam(gnu,intel)
 

15 files changed, 2107 insertions, 130 deletions

diff --git a/MANIFEST b/MANIFEST
index da738a2..e267143 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -349,6 +349,7 @@
 ./fortran/test/tH5I.f90
 ./fortran/test/tH5L_F03.f90
 ./fortran/test/tH5O.f90
+./fortran/test/tH5O_F03.f90
 ./fortran/test/tH5P_F03.f90
 ./fortran/test/tH5P.f90
 ./fortran/test/tH5R.f90
diff --git a/fortran/src/H5Gff.f90 b/fortran/src/H5Gff.f90
index 6bcee7c..155185a 100644
--- a/fortran/src/H5Gff.f90
+++ b/fortran/src/H5Gff.f90
@@ -927,7 +927,7 @@ CONTAINS
                                            ! Buffer to hold a comment
     INTEGER, INTENT(OUT) :: hdferr         ! Error code
 !*****
-    INTEGER :: namelen ! Lenghth of the current_name string
+    INTEGER :: namelen ! Length of the current_name string
 
     INTERFACE
        INTEGER FUNCTION h5gget_comment_c(loc_id, name, namelen, size, buffer)
diff --git a/fortran/src/H5Of.c b/fortran/src/H5Of.c
index 531f09c..59f9a3d 100644
--- a/fortran/src/H5Of.c
+++ b/fortran/src/H5Of.c
@@ -24,6 +24,84 @@
 #include "H5f90.h"
 #include "H5Eprivate.h"
 
+int_f
+fill_h5o_info_t_f(H5O_info_t Oinfo, H5O_info_t_f *object_info) {
+
+  struct tm *ts;
+
+  object_info->fileno    = Oinfo.fileno;
+  object_info->addr      = (haddr_t_f)Oinfo.addr;
+ 
+
+  object_info->type      = (int_f)Oinfo.type;
+  object_info->rc        = (int_f)Oinfo.rc;
+
+  ts = HDgmtime(&Oinfo.atime);
+
+  object_info->atime[0]     = (int_f)ts->tm_year+1900; /* year starts at 1900 */
+  object_info->atime[1]     = (int_f)ts->tm_mon+1; /* month starts at 0 in C */
+  object_info->atime[2]     = (int_f)ts->tm_mday;
+  object_info->atime[3]     = 0; /* time is expressed as UTC (or GMT timezone) */
+  object_info->atime[4]     = (int_f)ts->tm_hour;
+  object_info->atime[5]     = (int_f)ts->tm_min;
+  object_info->atime[6]     = (int_f)ts->tm_sec;
+  object_info->atime[7]     = -32767; /* millisecond is not available, assign it -HUGE(0) */
+
+  ts = HDgmtime(&Oinfo.btime);
+
+  object_info->btime[0]     = (int_f)ts->tm_year+1900; /* year starts at 1900 */
+  object_info->btime[1]     = (int_f)ts->tm_mon+1; /* month starts at 0 in C */
+  object_info->btime[2]     = (int_f)ts->tm_mday;
+  object_info->btime[3]     = 0; /* time is expressed as UTC (or GMT timezone) */
+  object_info->btime[4]     = (int_f)ts->tm_hour;
+  object_info->btime[5]     = (int_f)ts->tm_min;
+  object_info->btime[6]     = (int_f)ts->tm_sec;
+  object_info->btime[7]     = -32767; /* millisecond is not available, assign it -HUGE(0) */
+
+  ts = HDgmtime(&Oinfo.ctime);
+
+  object_info->ctime[0]     = (int_f)ts->tm_year+1900; /* year starts at 1900 */
+  object_info->ctime[1]     = (int_f)ts->tm_mon+1; /* month starts at 0 in C */
+  object_info->ctime[2]     = (int_f)ts->tm_mday;
+  object_info->ctime[3]     = 0; /* time is expressed as UTC (or GMT timezone) */
+  object_info->ctime[4]     = (int_f)ts->tm_hour;
+  object_info->ctime[5]     = (int_f)ts->tm_min;
+  object_info->ctime[6]     = (int_f)ts->tm_sec;
+  object_info->ctime[7]     = -32767; /* millisecond is not available, assign it -HUGE(0) */
+
+  ts = HDgmtime(&Oinfo.mtime);
+
+  object_info->mtime[0]     = (int_f)ts->tm_year+1900; /* year starts at 1900 */
+  object_info->mtime[1]     = (int_f)ts->tm_mon+1; /* month starts at 0 in C */
+  object_info->mtime[2]     = (int_f)ts->tm_mday;
+  object_info->mtime[3]     = 0; /* time is expressed as UTC (or GMT timezone) */
+  object_info->mtime[4]     = (int_f)ts->tm_hour;
+  object_info->mtime[5]     = (int_f)ts->tm_min;
+  object_info->mtime[6]     = (int_f)ts->tm_sec;
+  object_info->mtime[7]     = -32767; /* millisecond is not available, assign it -HUGE(0) */
+
+  object_info->num_attrs = (hsize_t_f)Oinfo.num_attrs;
+
+  object_info->hdr.version = (int_f)Oinfo.hdr.version;
+  object_info->hdr.nmesgs  = (int_f)Oinfo.hdr.nmesgs;
+  object_info->hdr.nchunks = (int_f)Oinfo.hdr.nchunks;
+  object_info->hdr.flags   = (int_f)Oinfo.hdr.flags;
+
+  object_info->hdr.space.total = (hsize_t_f)Oinfo.hdr.space.total;
+  object_info->hdr.space.meta  = (hsize_t_f)Oinfo.hdr.space.meta;
+  object_info->hdr.space.mesg  = (hsize_t_f)Oinfo.hdr.space.mesg;
+  object_info->hdr.space.free  = (hsize_t_f)Oinfo.hdr.space.free;
+
+  object_info->hdr.mesg.present = Oinfo.hdr.mesg.present;
+  object_info->hdr.mesg.shared  = Oinfo.hdr.mesg.shared;
+
+  object_info->meta_size.obj.index_size = (hsize_t_f)Oinfo.meta_size.obj.index_size;
+  object_info->meta_size.obj.heap_size  = (hsize_t_f)Oinfo.meta_size.obj.heap_size;
+
+  return 0;
+
+}
+
 /****if* H5Of/h5olink_c
  * NAME
  *  h5olink_c
@@ -215,7 +293,7 @@ nh5oopen_by_addr_c (hid_t_f *loc_id, haddr_t_f *addr, hid_t_f *obj_id)
   return ret_value;
 }
 
-/* ***if* H5Of/H5Oget_info_by_name_c
+/****if* H5Of/H5Oget_info_by_name_c
  * NAME
  *  H5Oget_info_by_name_c
  * PURPOSE
@@ -226,10 +304,7 @@ nh5oopen_by_addr_c (hid_t_f *loc_id, haddr_t_f *addr, hid_t_f *obj_id)
  *  namelen      - Name length.
  *  lapl_id      - Link access property list.
  * OUTPUTS
- *  corder_valid - Indicates whether the the creation order data is valid for this attribute.
- *  corder       - Is a positive integer containing the creation order of the attribute.
- *  cset         - Indicates the character set used for the attribute’s name.
- *  data_size    - indicates the size, in the number of characters, of the attribute.
+ *  object_info  - Buffer in which to return object information.
  *
  * RETURNS
  *  0 on success, -1 on failure
@@ -261,74 +336,100 @@ nh5oget_info_by_name_c (hid_t_f *loc_id, _fcd name, size_t_f *namelen, hid_t_f *
 			 &Oinfo, (hid_t)*lapl_id) < 0)
     HGOTO_DONE(FAIL);
 
-  object_info->fileno    = Oinfo.fileno;
-  object_info->addr      = (haddr_t_f)Oinfo.addr;
- 
-
-  object_info->type      = (int_f)Oinfo.type;
-  object_info->rc        = (int_f)Oinfo.rc;
+  ret_value = fill_h5o_info_t_f(Oinfo,object_info);
 
-  ts = HDgmtime(&Oinfo.atime);
-
-  object_info->atime[0]     = (int_f)ts->tm_year+1900; /* year starts at 1900 */
-  object_info->atime[1]     = (int_f)ts->tm_mon+1; /* month starts at 0 in C */
-  object_info->atime[2]     = (int_f)ts->tm_mday;
-  object_info->atime[3]     = 0; /* time is expressed as UTC (or GMT timezone) */
-  object_info->atime[4]     = (int_f)ts->tm_hour;
-  object_info->atime[5]     = (int_f)ts->tm_min;
-  object_info->atime[6]     = (int_f)ts->tm_sec;
-  object_info->atime[7]     = -32767; /* millisecond is not available, assign it -HUGE(0) */
-
-  ts = HDgmtime(&Oinfo.btime);
-
-  object_info->btime[0]     = (int_f)ts->tm_year+1900; /* year starts at 1900 */
-  object_info->btime[1]     = (int_f)ts->tm_mon+1; /* month starts at 0 in C */
-  object_info->btime[2]     = (int_f)ts->tm_mday;
-  object_info->btime[3]     = 0; /* time is expressed as UTC (or GMT timezone) */
-  object_info->btime[4]     = (int_f)ts->tm_hour;
-  object_info->btime[5]     = (int_f)ts->tm_min;
-  object_info->btime[6]     = (int_f)ts->tm_sec;
-  object_info->btime[7]     = -32767; /* millisecond is not available, assign it -HUGE(0) */
-
-  ts = HDgmtime(&Oinfo.ctime);
-
-  object_info->ctime[0]     = (int_f)ts->tm_year+1900; /* year starts at 1900 */
-  object_info->ctime[1]     = (int_f)ts->tm_mon+1; /* month starts at 0 in C */
-  object_info->ctime[2]     = (int_f)ts->tm_mday;
-  object_info->ctime[3]     = 0; /* time is expressed as UTC (or GMT timezone) */
-  object_info->ctime[4]     = (int_f)ts->tm_hour;
-  object_info->ctime[5]     = (int_f)ts->tm_min;
-  object_info->ctime[6]     = (int_f)ts->tm_sec;
-  object_info->ctime[7]     = -32767; /* millisecond is not available, assign it -HUGE(0) */
+ done:
+  if(c_name)
+    HDfree(c_name);
+  return ret_value;
+}
 
-  ts = HDgmtime(&Oinfo.mtime);
+/****if* H5Of/H5Oget_info_by_idx_c
+ * NAME
+ *  H5Oget_info_by_idx_c
+ * PURPOSE
+ *  Calls H5Oget_info_by_idx
+ * INPUTS
+ *  loc_id       - File or group identifier specifying location of group in which object is located.
+ *  name         - Name of group, relative to loc_id.
+ *  namelen      - Name length.
+ *  lapl_id      - Link access property list.
+ * OUTPUTS
+ *  object_info  - Buffer in which to return object information.
+ *
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  December 1, 2008
+ * SOURCE
+*/
+int_f
+nh5oget_info_by_idx_c (hid_t_f *loc_id, _fcd  group_name, size_t_f *namelen, 
+		       int_f *index_field, int_f *order, hsize_t_f *n, hid_t_f *lapl_id, H5O_info_t_f *object_info)
+/******/
+{
+  char *c_group_name = NULL;     /* Buffer to hold C string */
+  int_f ret_value = 0;          /* Return value */
+  H5O_info_t Oinfo;
+  H5_index_t c_index_field;
+  H5_iter_order_t c_order;
+  
+  /*
+   * Convert FORTRAN name to C name
+   */
+  if((c_group_name = HD5f2cstring( group_name, (size_t)*namelen)) == NULL)
+    HGOTO_DONE(FAIL);
 
-  object_info->mtime[0]     = (int_f)ts->tm_year+1900; /* year starts at 1900 */
-  object_info->mtime[1]     = (int_f)ts->tm_mon+1; /* month starts at 0 in C */
-  object_info->mtime[2]     = (int_f)ts->tm_mday;
-  object_info->mtime[3]     = 0; /* time is expressed as UTC (or GMT timezone) */
-  object_info->mtime[4]     = (int_f)ts->tm_hour;
-  object_info->mtime[5]     = (int_f)ts->tm_min;
-  object_info->mtime[6]     = (int_f)ts->tm_sec;
-  object_info->mtime[7]     = -32767; /* millisecond is not available, assign it -HUGE(0) */
+  c_index_field = (H5_index_t)*index_field;
+  c_order = (H5_iter_order_t)*order;
 
-  object_info->num_attrs = (hsize_t_f)Oinfo.num_attrs;
+  /*
+   * Call H5Oinfo_by_idx function.
+   */
+  if(H5Oget_info_by_idx((hid_t)*loc_id, c_group_name, c_index_field, c_order, (hsize_t)*n,
+			 &Oinfo, (hid_t)*lapl_id) < 0)
+    HGOTO_DONE(FAIL);
 
-  object_info->hdr.version = (int_f)Oinfo.hdr.version;
-  object_info->hdr.nmesgs  = (int_f)Oinfo.hdr.nmesgs;
-  object_info->hdr.nchunks = (int_f)Oinfo.hdr.nchunks;
-  object_info->hdr.flags   = (int_f)Oinfo.hdr.flags;
+  ret_value = fill_h5o_info_t_f(Oinfo,object_info);
 
-  object_info->hdr.space.total = (hsize_t_f)Oinfo.hdr.space.total;
-  object_info->hdr.space.meta  = (hsize_t_f)Oinfo.hdr.space.meta;
-  object_info->hdr.space.mesg  = (hsize_t_f)Oinfo.hdr.space.mesg;
-  object_info->hdr.space.free  = (hsize_t_f)Oinfo.hdr.space.free;
+ done:
+  if(c_group_name)
+    HDfree(c_group_name);
+  return ret_value;
+}
 
-  object_info->hdr.mesg.present = Oinfo.hdr.mesg.present;
-  object_info->hdr.mesg.shared  = Oinfo.hdr.mesg.shared;
+/****if* H5Of/H5Oget_info_c
+ * NAME
+ *  H5Oget_info_c
+ * PURPOSE
+ *  Calls H5Oget_info
+ * INPUTS
+ *  object_id   - Identifier for target object.
+ * OUTPUTS
+ *  object_info - Buffer in which to return object information.
+ *
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  May 16, 2012
+ * SOURCE
+*/
+int_f
+nh5oget_info_c (hid_t_f *object_id, H5O_info_t_f *object_info)
+/******/
+{
+  int_f ret_value = 0;          /* Return value */
+  H5O_info_t Oinfo;
+  
+  /*
+   * Call H5Oinfo_by_name function.
+   */
+  if(H5Oget_info((hid_t)*object_id, &Oinfo) < 0)
+    HGOTO_DONE(FAIL);
 
-  object_info->meta_size.obj.index_size = (hsize_t_f)Oinfo.meta_size.obj.index_size;
-  object_info->meta_size.obj.heap_size  = (hsize_t_f)Oinfo.meta_size.obj.heap_size;
+  ret_value = fill_h5o_info_t_f(Oinfo,object_info);
 
  done:
   return ret_value;
@@ -391,3 +492,428 @@ nh5ocopy_c (hid_t_f *src_loc_id, _fcd src_name, size_t_f *src_name_len,
   return ret_value;
 
 }
+
+/****if* H5Of/h5ovisit_by_name_c
+ * NAME
+ *  h5ovisit_by_name_c
+ * PURPOSE
+ *  Calls H5Ovisit_by_name
+ * INPUTS
+ *    object_id - Identifier specifying subject group
+ *   index_type - Type of index which determines the order
+ *        order - Order within index
+ *          idx - Iteration position at which to start
+ *           op - Callback function passing data regarding the link to the calling application
+ *      op_data - User-defined pointer to data required by the application for its processing of the link
+ *
+ * OUTPUTS
+ *          idx - Position at which an interrupted iteration may be restarted
+ *
+ * RETURNS
+ *     >0 on success, 0< on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  May 16, 2012
+ * SOURCE
+*/
+int_f
+nh5ovisit_by_name_c(hid_t_f *loc_id,  _fcd object_name, size_t_f *namelen, int_f *index_type, int_f *order,
+		    H5O_iterate_t op, void *op_data, hid_t_f *lapl_id )
+/******/
+{
+  int_f ret_value = -1;       /* Return value */
+  herr_t func_ret_value;      /* H5Linterate return value */
+  char *c_object_name = NULL; /* Buffer to hold C string */
+
+
+  /*
+   * Convert FORTRAN name to C name
+   */
+  if( (c_object_name = HD5f2cstring(object_name, (size_t)*namelen)) == NULL)
+    HGOTO_DONE(FAIL);
+
+  /*
+   * Call H5Ovisit
+   */
+  func_ret_value = H5Ovisit_by_name( (hid_t)*loc_id, c_object_name, (H5_index_t)*index_type, (H5_iter_order_t)*order,
+				     op, op_data, (hid_t)*lapl_id);
+  ret_value = (int_f)func_ret_value;
+
+ done:
+  if(c_object_name)
+    HDfree(c_object_name);
+  return ret_value;
+
+}
+
+/****if* H5Of/h5odecr_refcount_c
+ * NAME
+ *  h5odecr_refcount_c
+ * PURPOSE
+ *  Calls H5Odecr_refcount
+ * INPUTS
+ *  object_id - Object identifier.
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  May 16, 2012
+ * SOURCE
+*/
+int_f
+nh5odecr_refcount_c (hid_t_f *object_id)
+/******/
+{
+  int_f ret_value = 0;  /* Return value */
+
+  /*
+   * Call H5Odecr_refcount function.
+   */
+  if((hid_t_f)H5Odecr_refcount((hid_t)*object_id) < 0)
+    HGOTO_DONE(FAIL);
+
+ done:
+  return ret_value;
+}
+
+/****if* H5Of/h5oexists_by_name_c
+ * NAME
+ *  h5oexists_by_name_c
+ * PURPOSE
+ *  Calls H5Oexists_by_name
+ * INPUTS
+ *  loc_id  - File or group identifier
+ *  name    - Attribute access property list
+ *  namelen - Size of name
+ *  lapl_id - Link access property list
+ *
+ * RETURNS
+ *  link status: 0 = false, 1 = true, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  May 17, 2012
+ * SOURCE
+*/
+int_f
+nh5oexists_by_name_c (hid_t_f *loc_id, _fcd name, size_t_f *namelen, hid_t_f *lapl_id)
+/******/
+{
+  char *c_name = NULL;          /* Buffer to hold C string */
+  int_f ret_value = 0;          /* Return value */
+  htri_t status = 0;
+
+  /*
+   * Convert FORTRAN name to C name
+   */
+  if((c_name = HD5f2cstring(name, (size_t)*namelen)) == NULL)
+    HGOTO_DONE(FAIL);
+
+  /*
+   * Call H5Oopen function.
+   */
+  if((ret_value = (int_f)H5Oexists_by_name((hid_t)*loc_id, c_name, (hid_t)*lapl_id)) < 0)
+    HGOTO_DONE(FAIL);
+
+ done:
+  if(c_name)
+    HDfree(c_name);
+  return ret_value;
+}
+
+/****if* H5Of/h5oincr_refcount_c
+ * NAME
+ *  h5oincr_refcount_c
+ * PURPOSE
+ *  Calls H5Oincr_refcount
+ * INPUTS
+ *  object_id - Object identifier.
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  May 16, 2012
+ * SOURCE
+*/
+int_f
+nh5oincr_refcount_c (hid_t_f *object_id)
+/******/
+{
+  int_f ret_value = 0;  /* Return value */
+
+  /*
+   * Call H5Oincr_refcount function.
+   */
+  if((hid_t_f)H5Oincr_refcount((hid_t)*object_id) < 0)
+    HGOTO_DONE(FAIL);
+
+ done:
+  return ret_value;
+}
+
+/****if* H5Of/h5oset_comment_c
+ * NAME
+ *  h5oset_comment_c
+ * PURPOSE
+ *  Calls H5Oset_comment
+ * INPUTS
+ *  object_id  - Identifier of the target object.
+ *  comment    - The new comment.
+ *  commentlen - Length of the comment.
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  May 17, 2012
+ * SOURCE
+*/
+int_f
+nh5oset_comment_c (hid_t_f *object_id, _fcd comment, size_t_f *commentlen)
+/******/
+{
+  char *c_comment = NULL;   /* Buffer to hold C string */
+  int_f ret_value = 0;     /* Return value */
+
+  /*
+   * Convert FORTRAN string to C string
+   */
+  if((c_comment = HD5f2cstring(comment, (size_t)*commentlen)) == NULL)
+    HGOTO_DONE(FAIL);
+
+  /*
+   * Call H5Oset_comment function.
+   */
+  if((hid_t_f)H5Oset_comment((hid_t)*object_id, c_comment) < 0)
+    HGOTO_DONE(FAIL);
+
+ done:
+  if(c_comment)
+    HDfree(c_comment);
+  return ret_value;
+}
+
+/****if* H5Of/h5oset_comment_by_name_c
+ * NAME
+ *  h5oset_comment_by_name_c
+ * PURPOSE
+ *  Calls H5Oset_comment_by_name
+ * INPUTS
+ *  object_id  - Identifier of the target object.
+ *  name       - Name of the object whose comment is to be set or reset, 
+ *               specified as a path relative to loc_id. 
+ *  namelen    - Length of the name.
+ *  comment    - The new comment.
+ *  commentlen - Length of the comment.
+ *  lapl_id    - Link access property list identifier.
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  May 17, 2012
+ * SOURCE
+*/
+int_f
+nh5oset_comment_by_name_c (hid_t_f *object_id, _fcd name, size_t_f *namelen,  _fcd comment, size_t_f *commentlen, hid_t_f *lapl_id)
+/******/
+{
+  char *c_comment = NULL;   /* Buffer to hold C string */
+  char *c_name = NULL;   /* Buffer to hold C string */
+  int_f ret_value = 0;     /* Return value */
+
+  /*
+   * Convert FORTRAN string to C string
+   */
+  if((c_comment = HD5f2cstring(comment, (size_t)*commentlen)) == NULL)
+    HGOTO_DONE(FAIL);
+  /*
+   * Convert FORTRAN string to C string
+   */
+  if((c_name = HD5f2cstring(name, (size_t)*namelen)) == NULL)
+    HGOTO_DONE(FAIL);
+
+  /*
+   * Call H5Oset_comment_by_name function.
+   */
+  if((hid_t_f)H5Oset_comment_by_name((hid_t)*object_id, c_name, c_comment, (hid_t)*lapl_id) < 0)
+    HGOTO_DONE(FAIL);
+
+ done:
+  if(c_name)
+    HDfree(c_name);
+  if(c_comment)
+    HDfree(c_comment);
+  return ret_value;
+}
+/****if* H5Of/h5oopen_by_idx_c
+ * NAME
+ *  h5oopen_by_idx_c
+ * PURPOSE
+ *  Calls H5Oopen_by_idx_c
+ * INPUTS
+ *  loc_id        - A file or group identifier.
+ *  group_name    - Name of group, relative to loc_id, in which object is located.
+ *  group_namelen - Length of group_name
+ *  index_type    - Type of index by which objects are ordered.
+ *  order         - Order of iteration within index.
+ *  n             - Object to open.
+ *  lapl_id       - Link access property list.
+ * OUTPUTS
+ *   obj_id       - An object identifier for the opened object.
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  May 17, 2012
+ * SOURCE
+*/
+int_f
+nh5oopen_by_idx_c (hid_t_f *loc_id, _fcd  group_name, size_t_f *group_namelen, 
+		       int_f *index_type, int_f *order, hsize_t_f *n, hid_t_f *obj_id, hid_t_f *lapl_id)
+/******/
+{
+  char *c_group_name = NULL;     /* Buffer to hold C string */
+  int_f ret_value = 0;
+  H5_index_t c_index_type;
+  H5_iter_order_t c_order;
+  
+  /*
+   * Convert FORTRAN string to C string
+   */
+  if((c_group_name = HD5f2cstring( group_name, (size_t)*group_namelen)) == NULL)
+    HGOTO_DONE(FAIL);
+
+  c_index_type = (H5_index_t)*index_type;
+  c_order = (H5_iter_order_t)*order;
+
+  /*
+   * Call H5Oopen_by_idx function.
+   */
+  if((*obj_id =(hid_t_f)H5Oopen_by_idx((hid_t)*loc_id, c_group_name, c_index_type, c_order, (hsize_t)*n, (hid_t)*lapl_id)) < 0)
+    HGOTO_DONE(FAIL);
+
+ done:
+  if(c_group_name)
+    HDfree(c_group_name);
+  return ret_value;
+}
+
+/****if* H5Of/h5oget_comment_c
+ * NAME
+ *  h5oget_comment_c
+ * PURPOSE
+ *  Calls  H5Oget_comment
+ * INPUTS
+ *  object_id  - Identifier for the target object.
+ *  bufsize    - Anticipated required size of the comment buffer.
+ * OUTPUTS
+ *  comment    - The comment.
+ *
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  June 24, 2012
+ * SOURCE
+*/
+int_f
+nh5oget_comment_c (hid_t_f *object_id, _fcd comment, size_t_f *commentsize,  hssize_t_f *bufsize)
+/******/
+{
+  char *c_comment = NULL;  /* Buffer to hold C string */
+  int_f ret_value = 0;     /* Return value */
+  size_t c_commentsize;
+
+  c_commentsize = (size_t)*commentsize + 1;
+
+  /*
+   * Allocate buffer to hold comment name
+   */
+  
+  if(NULL == (c_comment = (char *)HDmalloc(c_commentsize)))
+    HGOTO_DONE(FAIL);
+
+  /*
+   * Call H5Oget_comment function.
+   */ 
+
+  if((*bufsize = (hssize_t_f)H5Oget_comment((hid_t)*object_id, c_comment, (size_t)*commentsize)) < 0)
+    HGOTO_DONE(FAIL);
+
+  /*
+   * Convert C name to FORTRAN and place it in the given buffer
+   */
+  if(c_comment)
+    HD5packFstring(c_comment, _fcdtocp(comment), c_commentsize - 1);
+  return ret_value;
+
+ done:
+  if(c_comment)
+    HDfree(c_comment);
+
+  return ret_value;
+}
+
+/****if* H5Of/h5oget_comment_by_name_c
+ * NAME
+ *  h5oget_comment_by_name_c
+ * PURPOSE
+ *  Calls H5Oget_comment_by_name
+ * INPUTS
+ *  object_id  - Identifier for the target object.
+ *  bufsize    - Anticipated required size of the comment buffer.
+ * OUTPUTS
+ *  comment    - The comment.
+ *
+ * RETURNS
+ *  0 on success, -1 on failure
+ * AUTHOR
+ *  M. Scot Breitenfeld
+ *  July 6, 2012
+ * SOURCE
+*/
+int_f
+nh5oget_comment_by_name_c (hid_t_f *loc_id, _fcd name, size_t_f *name_size, 
+			   _fcd comment, size_t_f *commentsize, size_t_f *bufsize, hid_t_f *lapl_id)
+/******/
+{
+  char *c_comment = NULL;  /* Buffer to hold C string */
+  char *c_name = NULL;     /* Buffer to hold C string */
+  int_f ret_value = 0;     /* Return value */
+  size_t c_commentsize;
+
+  /*
+   * Convert FORTRAN string to C string
+   */
+  if((c_name = HD5f2cstring(name, (size_t)*name_size)) == NULL)
+    HGOTO_DONE(FAIL);
+
+  c_commentsize = (size_t)*commentsize + 1;
+
+  /*
+   * Allocate buffer to hold comment name
+   */
+  
+  if(NULL == (c_comment = (char *)HDmalloc(c_commentsize)))
+    HGOTO_DONE(FAIL);
+
+  /*
+   * Call H5Oget_comment_by_name function.
+   */ 
+
+  if((*bufsize = (size_t_f)H5Oget_comment_by_name((hid_t)*loc_id, c_name, c_comment, (size_t)*commentsize,(hid_t)*lapl_id )) < 0)
+    HGOTO_DONE(FAIL);
+
+  /*
+   * Convert C name to FORTRAN and place it in the given buffer
+   */
+  if(c_comment)
+    HD5packFstring(c_comment, _fcdtocp(comment), c_commentsize - 1);
+  return ret_value;
+
+ done:
+  if(c_comment)
+    HDfree(c_comment);
+  if(c_name)
+    HDfree(c_name);
+
+  return ret_value;
+}
diff --git a/fortran/src/H5Off.f90 b/fortran/src/H5Off.f90
index 4f1ea18..2d8509f 100644
--- a/fortran/src/H5Off.f90
+++ b/fortran/src/H5Off.f90
@@ -119,15 +119,15 @@ CONTAINS
 !  Opens an object in an HDF5 file by location identifier and path name.
 !
 ! Inputs:
-!  loc_id 	 - File or group identifier.
-!  name 	 - Path to the object, relative to loc_id.
+!  loc_id  - File or group identifier.
+!  name    - Path to the object, relative to loc_id.
 !
 ! Outputs:
-!  obj_id 	 - Object identifier for the opened object.
-!  hdferr        - Returns 0 if successful and -1 if fails.
+!  obj_id  - Object identifier for the opened object.
+!  hdferr  - Returns 0 if successful and -1 if fails.
 !
 ! Optional parameters:
-!  lapl_id 	 - Access property list identifier for the link pointing to the object.
+!  lapl_id - Access property list identifier for the link pointing to the object.
 !
 ! AUTHOR
 !  M. Scot Breitenfeld
@@ -215,12 +215,12 @@ CONTAINS
 !  Opens an object using its address within an HDF5 file. 
 !
 ! Inputs:  
-!    loc_id - File or group identifier.
-!    addr   - Object’s address in the file.
+!  loc_id - File or group identifier.
+!  addr   - Object’s address in the file.
 !
 ! Outputs:
-!    obj_id - Object identifier for the opened object.
-!    hdferr - Returns 0 if successful and -1 if fails.
+!  obj_id - Object identifier for the opened object.
+!  hdferr - Returns 0 if successful and -1 if fails.
 !
 ! AUTHOR	
 !  M. Scot Breitenfeld
@@ -321,5 +321,455 @@ CONTAINS
 
   END SUBROUTINE h5ocopy_f
 
+!****s* H5O/h5odecr_refcount_f
+! NAME		
+!  h5odecr_refcount_f
+!
+! PURPOSE
+!  Decrements an object reference count. 
+!
+! Inputs:  
+!  object_id - Object identifier.
+!
+! Outputs: 
+!  hdferr    - Returns 0 if successful and -1 if fails.
+!
+! AUTHOR	
+!  M. Scot Breitenfeld
+!  May 11, 2012
+! 
+! Fortran90 Interface:
+  SUBROUTINE h5odecr_refcount_f(object_id, hdferr)
+    IMPLICIT NONE
+    INTEGER(HID_T), INTENT(IN)  :: object_id
+    INTEGER       , INTENT(OUT) :: hdferr
+!*****
+
+    INTERFACE
+       INTEGER FUNCTION h5odecr_refcount_c(object_id)
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5ODECR_REFCOUNT_C'::h5odecr_refcount_c
+         !DEC$ENDIF
+         INTEGER(HID_T)  , INTENT(IN) :: object_id
+       END FUNCTION h5odecr_refcount_c
+    END INTERFACE
+
+    hdferr = h5odecr_refcount_c(object_id)  
+
+  END SUBROUTINE h5odecr_refcount_f
+
+!****s* H5O/h5oexists_by_name_f
+! NAME		
+!  h5oexists_by_name_f
+!
+! PURPOSE
+!  Determines whether a link resolves to an actual object.
+!
+! Inputs:
+!  loc_id   - Identifier of the file or group to query. 
+!  name     - The name of the link to check. 
+!    
+!
+! Optional parameters:
+!  lapl_id  - Link access property list identifier.
+!
+! Outputs: 
+!  link_exists - Existing link resolves to an object.
+!  hdferr      - Returns 0 if successful and -1 if fails.
+!
+! AUTHOR	
+!  M. Scot Breitenfeld
+!  May 11, 2012
+! 
+! Fortran90 Interface:
+  SUBROUTINE h5oexists_by_name_f(loc_id, name, link_exists, hdferr, lapl_id)
+    IMPLICIT NONE
+    INTEGER(HID_T)  , INTENT(IN)  :: loc_id
+    CHARACTER(LEN=*), INTENT(IN)  :: name
+    LOGICAL         , INTENT(OUT) :: link_exists
+    INTEGER         , INTENT(OUT) :: hdferr
+    INTEGER(HID_T)  , INTENT(IN), OPTIONAL :: lapl_id
+!*****
+
+    INTEGER(size_t) :: namelen
+    INTEGER :: status
+    INTEGER(HID_T) :: lapl_id_default
+
+    INTERFACE
+       INTEGER FUNCTION h5oexists_by_name_c(loc_id, name, namelen, lapl_id)
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OEXISTS_BY_NAME_C'::h5oexists_by_name_c
+         !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: name
+         INTEGER(HID_T)  , INTENT(IN) :: loc_id
+         CHARACTER(LEN=*), INTENT(IN) :: name
+         INTEGER(SIZE_T) , INTENT(IN) :: namelen
+         INTEGER(HID_T)  , INTENT(IN) :: lapl_id
+
+       END FUNCTION h5oexists_by_name_c
+    END INTERFACE
+
+    namelen = LEN(name)
+    
+    lapl_id_default = H5P_DEFAULT_F
+    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
+
+    status = h5oexists_by_name_c(loc_id, name, namelen, lapl_id_default)
+
+    link_exists = .FALSE.
+    IF(status.EQ.1)THEN
+       link_exists = .TRUE.
+    ENDIF
+
+    hdferr = 0
+    IF(status.LT.0)THEN
+       hdferr = -1
+    ENDIF
+
+  END SUBROUTINE h5oexists_by_name_f
+
+!****s* H5O/h5oget_comment_f
+! NAME		
+!  h5oget_comment_f
+!
+! PURPOSE
+!  Retrieves comment for specified object. 
+!
+! Inputs:
+!  obj_id - Identifier for the target object.
+!
+! Optional parameters:
+!  bufsize - Size of the comment buffer.
+!
+! Outputs: 
+!  comment - The comment.
+!  hdferr  - Returns 0 if successful and -1 if fails.
+!
+! AUTHOR	
+!  M. Scot Breitenfeld
+!  May 11, 2012
+! 
+! Fortran90 Interface:
+  SUBROUTINE h5oget_comment_f(obj_id, comment, hdferr, bufsize)
+    IMPLICIT NONE
+    INTEGER(HID_T)   , INTENT(IN)            :: obj_id
+    CHARACTER(LEN=*) , INTENT(OUT)           :: comment
+    INTEGER          , INTENT(OUT)           :: hdferr
+    INTEGER(HSSIZE_T), INTENT(OUT), OPTIONAL :: bufsize 
+!*****
+
+    INTEGER(SIZE_T)   :: commentsize_default
+    INTEGER(HSSIZE_T) :: bufsize_default
+
+    INTERFACE
+       INTEGER FUNCTION h5oget_comment_c(obj_id, comment, commentsize_default, bufsize)
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OGET_COMMENT_C'::h5oget_comment_c
+         !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: comment
+         INTEGER(HID_T)  , INTENT(IN)  :: obj_id
+         CHARACTER(LEN=*), INTENT(OUT) :: comment
+         INTEGER(SIZE_T) , INTENT(IN)  :: commentsize_default
+         INTEGER(HSSIZE_T) , INTENT(OUT) :: bufsize
+       END FUNCTION h5oget_comment_c
+    END INTERFACE
+
+    commentsize_default = LEN(comment)
+
+    hdferr = h5oget_comment_c(obj_id, comment, commentsize_default, bufsize_default)
+    
+    IF(PRESENT(bufsize)) bufsize = bufsize_default
+
+  END SUBROUTINE h5oget_comment_f
+
+!****s* H5O/h5oget_comment_by_name_f
+! NAME		
+!  h5oget_comment_by_name_f
+!
+! PURPOSE
+!  Retrieves comment for specified object.
+!
+! Inputs:
+!  loc_id   - Identifier of a file, group, dataset, or named datatype.
+!  name     - Name of the object whose comment is to be retrieved, 
+!             specified as a path relative to loc_id. 
+!
+! Optional parameters:
+!  bufsize  - Size of the comment buffer.
+!
+! Outputs: 
+!  comment  - The comment.
+!  hdferr   - Returns 0 if successful and -1 if fails.
+!
+! AUTHOR	
+!  M. Scot Breitenfeld
+!  July 6, 2012
+! 
+! Fortran90 Interface:
+  SUBROUTINE h5oget_comment_by_name_f(loc_id, name, comment, hdferr, bufsize, lapl_id)
+    IMPLICIT NONE
+    INTEGER(HID_T)  , INTENT(IN)            :: loc_id
+    CHARACTER(LEN=*), INTENT(IN)            :: name
+    CHARACTER(LEN=*), INTENT(OUT)           :: comment
+    INTEGER         , INTENT(OUT)           :: hdferr
+    INTEGER(SIZE_T) , INTENT(OUT), OPTIONAL :: bufsize 
+    INTEGER(HID_T)  , INTENT(IN) , OPTIONAL :: lapl_id 
+!*****
+
+    INTEGER(SIZE_T) :: commentsize_default
+    INTEGER(SIZE_T) :: name_size
+    INTEGER(SIZE_T) :: bufsize_default
+    INTEGER(HID_T)  :: lapl_id_default
+    INTERFACE
+       INTEGER FUNCTION h5oget_comment_by_name_c(loc_id, name, name_size, &
+            comment, commentsize_default, bufsize_default, lapl_id)
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OGET_COMMENT_BY_NAME_C'::h5oget_comment_by_name_c
+         !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: comment, name
+         INTEGER(HID_T)  , INTENT(IN)  :: loc_id
+         CHARACTER(LEN=*), INTENT(IN)  :: name
+         INTEGER(SIZE_T) , INTENT(IN)  :: name_size
+         CHARACTER(LEN=*), INTENT(OUT) :: comment
+         INTEGER(SIZE_T) , INTENT(IN)  :: commentsize_default
+         INTEGER(SIZE_T) , INTENT(OUT) :: bufsize_default
+         INTEGER(HID_T)  , INTENT(IN)  :: lapl_id
+       END FUNCTION h5oget_comment_by_name_c
+    END INTERFACE
+
+    commentsize_default = LEN(comment)
+    name_size = LEN(name)
+
+    lapl_id_default = H5P_DEFAULT_F
+    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
+
+    hdferr = h5oget_comment_by_name_c(loc_id, name, name_size, &
+         comment, commentsize_default, bufsize_default, lapl_id_default)
+    
+    IF(PRESENT(bufsize)) bufsize = bufsize_default
+
+  END SUBROUTINE h5oget_comment_by_name_f
+
+!****s* H5O/h5oincr_refcount_f
+! NAME		
+!  h5oincr_refcount_f
+!
+! PURPOSE
+!  Increments an object reference count.
+!
+! Inputs:  
+!  obj_id  - Object identifier.
+!
+! Outputs: 
+!  hdferr     - Returns 0 if successful and -1 if fails.
+!
+! AUTHOR	
+!  M. Scot Breitenfeld
+!  May 15, 2012
+! 
+! Fortran90 Interface:
+  SUBROUTINE h5oincr_refcount_f(obj_id, hdferr)
+    IMPLICIT NONE
+    INTEGER(HID_T), INTENT(IN)  :: obj_id
+    INTEGER       , INTENT(OUT) :: hdferr
+!*****
+
+    INTERFACE
+       INTEGER FUNCTION h5oincr_refcount_c(obj_id)
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OINCR_REFCOUNT_C'::h5oincr_refcount_c
+         !DEC$ENDIF
+         INTEGER(HID_T)  , INTENT(IN) :: obj_id
+       END FUNCTION h5oincr_refcount_c
+    END INTERFACE
+
+    hdferr = h5oincr_refcount_c(obj_id) 
+
+  END SUBROUTINE h5oincr_refcount_f
+
+!****s* H5O/h5oopen_by_idx_f
+!
+! NAME
+!  h5oopen_by_idx_f
+!
+! PURPOSE
+!  Open the nth object in a group. 
+!
+! Inputs:
+!  loc_id      - A file or group identifier.
+!  group_name  - Name of group, relative to loc_id, in which object is located.
+!  index_type  - Type of index by which objects are ordered.
+!  order       - Order of iteration within index, NOTE: zero-based.
+!  n           - Object to open.
+!
+! Outputs:
+!  obj_id      - An object identifier for the opened object.
+!  hdferr      - Returns 0 if successful and -1 if fails.
+!
+! Optional parameters:
+!  lapl_id     - Link access property list.
+!
+! AUTHOR
+!  M. Scot Breitenfeld
+!  May 17, 2012
+!
+! Fortran90 Interface:
+  SUBROUTINE h5oopen_by_idx_f(loc_id, group_name, index_type, order, n, obj_id, &
+       hdferr, lapl_id)
+    IMPLICIT NONE
+    INTEGER(HID_T)  , INTENT(IN)            :: loc_id
+    CHARACTER(LEN=*), INTENT(IN)            :: group_name
+    INTEGER         , INTENT(IN)            :: index_type
+    INTEGER         , INTENT(IN)            :: order
+    INTEGER(HSIZE_T), INTENT(IN)            :: n
+    INTEGER(HID_T)  , INTENT(OUT)           :: obj_id
+    INTEGER         , INTENT(OUT)           :: hdferr
+    INTEGER(HID_T)  , INTENT(IN) , OPTIONAL :: lapl_id
+!*****
+    INTEGER(SIZE_T) :: group_namelen
+    INTEGER(HID_T)  :: lapl_id_default
+    
+    INTERFACE
+       INTEGER FUNCTION h5oopen_by_idx_c(loc_id, group_name, group_namelen, index_type, order, n, obj_id, lapl_id_default)
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OOPEN_BY_IDX_C'::h5oopen_by_idx_c
+         !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: group_name
+         INTEGER(HID_T)  , INTENT(IN)  :: loc_id
+         CHARACTER(LEN=*), INTENT(IN)  :: group_name
+         INTEGER(SIZE_T) , INTENT(IN)  :: group_namelen
+         INTEGER         , INTENT(IN)  :: index_type
+         INTEGER         , INTENT(IN)  :: order
+         INTEGER(HSIZE_T), INTENT(IN)  :: n
+         INTEGER(HID_T)  , INTENT(IN)  :: obj_id
+         INTEGER(HID_T)  , INTENT(IN)  :: lapl_id_default
+
+       END FUNCTION h5oopen_by_idx_c
+    END INTERFACE
+
+    group_namelen = LEN(group_name)
+
+    lapl_id_default = H5P_DEFAULT_F
+    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
+
+    hdferr = h5oopen_by_idx_c(loc_id, group_name, group_namelen, index_type, order, n, obj_id, lapl_id_default)
+
+  END SUBROUTINE H5Oopen_by_idx_f
+
+!****s* H5O/h5oset_comment_f
+! NAME		
+!  h5oset_comment_f
+!
+! PURPOSE
+!  Sets comment for specified object.
+!
+! Inputs:  
+!  obj_id    - Identifier of the target object.
+!  comment   - The new comment.
+!
+! Outputs: 
+!  hdferr    - Returns 0 if successful and -1 if fails.
+!
+! AUTHOR	
+!  M. Scot Breitenfeld
+!  May 15, 2012
+! 
+! Fortran90 Interface:
+  SUBROUTINE h5oset_comment_f(obj_id, comment, hdferr)
+    IMPLICIT NONE
+    INTEGER(HID_T)  , INTENT(IN)  :: obj_id
+    CHARACTER(LEN=*), INTENT(IN)  :: comment
+    INTEGER         , INTENT(OUT) :: hdferr
+!*****
+    INTEGER(SIZE_T) :: commentlen
+
+    INTERFACE
+       INTEGER FUNCTION h5oset_comment_c(obj_id, comment, commentlen)
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OSET_COMMENT_C'::h5oset_comment_c
+         !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: comment
+         INTEGER(HID_T)  , INTENT(IN) :: obj_id
+         CHARACTER(LEN=*), INTENT(IN) :: comment
+         INTEGER(SIZE_T) , INTENT(IN) :: commentlen
+
+       END FUNCTION h5oset_comment_c
+    END INTERFACE
+
+    commentlen = LEN(comment)
+    
+    hdferr = h5oset_comment_c(obj_id, comment, commentlen)
+
+  END SUBROUTINE h5oset_comment_f
+
+!****s* H5O/h5oset_comment_by_name_f
+! NAME		
+!  h5oset_comment_by_name_f
+!
+! PURPOSE
+!  Sets comment for specified object. 
+!
+! Inputs:  
+!  loc_id - Identifier of a file, group, dataset, or named datatype.
+!  name      - Name of the object whose comment is to be set or reset, 
+!              specified as a path relative to loc_id. 
+!  comment   - The new comment.
+!
+! Outputs: 
+!  hdferr    - Returns 0 if successful and -1 if fails.
+!
+! Optional parameters:
+!  lapl_id   - Link access property list identifier.
+!
+! AUTHOR	
+!  M. Scot Breitenfeld
+!  May 15, 2012
+! 
+! Fortran90 Interface:
+  SUBROUTINE h5oset_comment_by_name_f(loc_id, name, comment, hdferr, lapl_id)
+    IMPLICIT NONE
+    INTEGER(HID_T)  , INTENT(IN)  :: loc_id
+    CHARACTER(LEN=*), INTENT(IN)  :: name
+    CHARACTER(LEN=*), INTENT(IN)  :: comment
+    INTEGER         , INTENT(OUT) :: hdferr
+    INTEGER(HID_T)  , INTENT(IN), OPTIONAL :: lapl_id
+!*****
+    INTEGER(SIZE_T) :: commentlen
+    INTEGER(SIZE_T) :: namelen
+    INTEGER(HID_T) :: lapl_id_default
+
+    INTERFACE
+       INTEGER FUNCTION h5oset_comment_by_name_c(loc_id, name, namelen, comment, commentlen, lapl_id)
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OSET_COMMENT_BY_NAME_C'::h5oset_comment_by_name_c
+         !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: name, comment
+         INTEGER(HID_T)  , INTENT(IN) :: loc_id
+         CHARACTER(LEN=*), INTENT(IN) :: comment
+         INTEGER(SIZE_T) , INTENT(IN) :: commentlen
+         CHARACTER(LEN=*), INTENT(IN) :: name
+         INTEGER(SIZE_T) , INTENT(IN) :: namelen
+         INTEGER(HID_T)  , INTENT(IN) :: lapl_id
+       END FUNCTION h5oset_comment_by_name_c
+    END INTERFACE
+
+    commentlen = LEN(comment)
+    namelen = LEN(name)
+
+    lapl_id_default = H5P_DEFAULT_F
+    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
+    
+    hdferr = h5oset_comment_by_name_c(loc_id, name, namelen, comment, commentlen, lapl_id_default)
+
+  END SUBROUTINE h5oset_comment_by_name_f
+
 END MODULE H5O
 
diff --git a/fortran/src/H5Off_F03.f90 b/fortran/src/H5Off_F03.f90
index 8eb7a4b..dbd674a 100644
--- a/fortran/src/H5Off_F03.f90
+++ b/fortran/src/H5Off_F03.f90
@@ -181,14 +181,14 @@ CONTAINS
 ! Inputs:
 !  loc_id      - File or group identifier specifying location of group 
 !                in which object is located.
-!  name        - Name of group, relative to loc_id
+!  name        - Name of group, relative to loc_id.
 !
 ! Outputs:  
-!  object_info - Buffer in which to return object information
-!  hdferr      - Returns 0 if successful and -1 if fails
+!  object_info - Buffer in which to return object information.
+!  hdferr      - Returns 0 if successful and -1 if fails.
 !
 ! Optional parameters:
-!  lapl_id     - Link access property list
+!  lapl_id     - Link access property list.
 !
 ! AUTHOR
 !  M. Scot Breitenfeld
@@ -218,11 +218,12 @@ CONTAINS
          !DEC$IF DEFINED(HDF5F90_WINDOWS)
          !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OGET_INFO_BY_NAME_C'::h5oget_info_by_name_c
          !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: name
          INTEGER(HID_T)  , INTENT(IN)  :: loc_id
          CHARACTER(LEN=*), INTENT(IN)  :: name
          INTEGER(SIZE_T) , INTENT(IN)  :: namelen
          INTEGER(HID_T)  , INTENT(IN)  :: lapl_id_default
-         TYPE(C_PTR),value             :: object_info
+         TYPE(C_PTR),VALUE             :: object_info
 
        END FUNCTION h5oget_info_by_name_c
     END INTERFACE
@@ -238,5 +239,222 @@ CONTAINS
 
   END SUBROUTINE H5Oget_info_by_name_f
 
+!****s* H5O (F03)/h5oget_info_f_F03
+!
+! NAME
+!  h5oget_info_f
+!
+! PURPOSE
+!  Retrieves the metadata for an object specified by an identifier.
+!
+! Inputs:
+!  object_id   - Identifier for target object.
+!
+! Outputs:
+!  object_info - Buffer in which to return object information.
+!  hdferr      - Returns 0 if successful and -1 if fails.
+!
+! AUTHOR
+!  M. Scot Breitenfeld
+!  May 11, 2012
+!
+! Fortran2003 Interface:
+  SUBROUTINE h5oget_info_f(object_id, object_info, hdferr)
+
+    USE, INTRINSIC :: ISO_C_BINDING
+    IMPLICIT NONE
+    INTEGER(HID_T)  , INTENT(IN)            :: object_id
+    TYPE(h5o_info_t), INTENT(OUT), TARGET   :: object_info
+    INTEGER         , INTENT(OUT)           :: hdferr
+!*****
+    TYPE(C_PTR) :: ptr
+    
+    INTERFACE
+       INTEGER FUNCTION h5oget_info_c(object_id, object_info)
+         USE H5GLOBAL
+         USE, INTRINSIC :: ISO_C_BINDING
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OGET_INFO_C'::h5oget_info_c
+         !DEC$ENDIF
+         INTEGER(HID_T), INTENT(IN)  :: object_id
+         TYPE(C_PTR), VALUE          :: object_info
+
+       END FUNCTION h5oget_info_c
+    END INTERFACE
+
+    ptr = C_LOC(object_info)
+    hdferr = H5Oget_info_c(object_id, ptr)
+
+  END SUBROUTINE H5Oget_info_f
+
+!****s* H5O (F03)/h5oget_info_by_idx_f_F03
+!
+! NAME
+!  h5oget_info_by_idx_f
+!
+! PURPOSE
+!  Retrieves the metadata for an object, identifying the object by an index position.
+!
+! Inputs:
+!  loc_id      - File or group identifier specifying location of group 
+!                in which object is located.
+!  group_name  - Name of group in which object is located.
+!  index_field - Index or field that determines the order.
+!  order       - Order within field or index.
+!  n           - Object for which information is to be returned
+!
+! Outputs:  
+!  object_info - Buffer in which to return object information.
+!  hdferr      - Returns 0 if successful and -1 if fails.
+!
+! Optional parameters:
+!  lapl_id     - Link access property list. (Not currently used.)
+!
+! AUTHOR
+!  M. Scot Breitenfeld
+!  May 11, 2012
+!
+! Fortran2003 Interface:
+  SUBROUTINE h5oget_info_by_idx_f(loc_id, group_name, index_field, order, n, &
+       object_info, hdferr, lapl_id)
+
+    USE, INTRINSIC :: ISO_C_BINDING
+    IMPLICIT NONE
+    INTEGER(HID_T)  , INTENT(IN)            :: loc_id
+    CHARACTER(LEN=*), INTENT(IN)            :: group_name
+    INTEGER         , INTENT(IN)            :: index_field
+    INTEGER         , INTENT(IN)            :: order
+    INTEGER(HSIZE_T), INTENT(IN)            :: n
+    TYPE(h5o_info_t), INTENT(OUT), TARGET   :: object_info
+    INTEGER         , INTENT(OUT)           :: hdferr
+    INTEGER(HID_T)  , INTENT(IN) , OPTIONAL :: lapl_id
+!*****
+    INTEGER         :: corder_valid
+    INTEGER(SIZE_T) :: namelen
+    INTEGER(HID_T)  :: lapl_id_default
+    TYPE(C_PTR)     :: ptr
+    
+    INTERFACE
+       INTEGER FUNCTION h5oget_info_by_idx_c(loc_id, group_name, namelen, &
+            index_field, order, n, lapl_id_default, object_info)
+         USE H5GLOBAL
+         USE, INTRINSIC :: ISO_C_BINDING
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OGET_INFO_BY_IDX_C'::h5oget_info_by_idx_c
+         !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: group_name
+         INTEGER(HID_T)  , INTENT(IN)  :: loc_id
+         CHARACTER(LEN=*), INTENT(IN)  :: group_name
+         INTEGER(SIZE_T) , INTENT(IN)  :: namelen
+         INTEGER         , INTENT(IN)  :: index_field
+         INTEGER         , INTENT(IN)  :: order
+         INTEGER(HSIZE_T), INTENT(IN)  :: n
+         INTEGER(HID_T)  , INTENT(IN)  :: lapl_id_default
+         TYPE(C_PTR), VALUE            :: object_info
+
+       END FUNCTION h5oget_info_by_idx_c
+    END INTERFACE
+
+    namelen = LEN(group_name)
+
+    lapl_id_default = H5P_DEFAULT_F
+    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
+
+    ptr = C_LOC(object_info)
+    hdferr = H5Oget_info_by_idx_c(loc_id, group_name, namelen, index_field, order, n, lapl_id_default, ptr)
+
+  END SUBROUTINE H5Oget_info_by_idx_f
+
+
+!****s* H5O (F03)/h5ovisit_by_name_f_F03
+!
+! NAME
+!  h5ovisit_by_name_f
+!
+! PURPOSE
+!  Recursively visits all objects starting from a specified object.
+!
+! Inputs:
+!  loc_id      - Identifier of a file or group.
+!  object_name - Name of the object, generally relative to loc_id, that will serve as root of the iteration 
+!  index_type  - Type of index; valid values include:
+!                 H5_INDEX_NAME_F
+!                 H5_INDEX_CRT_ORDER_F
+!  order       - Order in which index is traversed; valid values include:
+!                 H5_ITER_DEC_F
+!                 H5_ITER_INC_F
+!                 H5_ITER_NATIVE_F
+!  op 	       - Callback function passing data regarding the group to the calling application
+!  op_data     - User-defined pointer to data required by the application for its processing of the group
+!
+! Outputs:
+!  return_value - Returns the return value of the first operator that returns a positive value, or 
+!                 zero if all members were processed with no operator returning non-zero.
+!  hdferr       - Returns 0 if successful and -1 if fails
+!
+! Optional parameters:
+!  lapl_id      - Link access property list identifier.
+!
+! AUTHOR
+!  M. Scot Breitenfeld
+!  November 19, 2008
+!
+! Fortran2003 Interface:
+  SUBROUTINE h5ovisit_by_name_f(loc_id, object_name, index_type, order, op, op_data, &
+       return_value, hdferr, lapl_id)
+    USE, INTRINSIC :: ISO_C_BINDING
+    IMPLICIT NONE
+    INTEGER(HID_T)  , INTENT(IN)             :: loc_id
+    CHARACTER(LEN=*), INTENT(IN)             :: object_name
+    INTEGER         , INTENT(IN)             :: index_type 
+    INTEGER         , INTENT(IN)             :: order
+
+    TYPE(C_FUNPTR)                           :: op
+    TYPE(C_PTR)                              :: op_data
+    INTEGER         , INTENT(OUT)            :: return_value
+    INTEGER         , INTENT(OUT)            :: hdferr
+    INTEGER(HID_T)  , INTENT(IN) , OPTIONAL  :: lapl_id
+!*****
+
+    INTEGER(SIZE_T) :: namelen
+    INTEGER(HID_T)  :: lapl_id_default
+    TYPE(C_PTR)     :: ptr
+
+    INTERFACE
+       INTEGER FUNCTION h5ovisit_by_name_c(loc_id, object_name, namelen, index_type, order, &
+            op, op_data, lapl_id)
+         USE, INTRINSIC :: ISO_C_BINDING
+         USE H5GLOBAL
+         !DEC$IF DEFINED(HDF5F90_WINDOWS)
+         !DEC$ATTRIBUTES C,reference,decorate,alias:'H5OVISIT_BY_NAME_C'::h5ovisit_by_name_c
+         !DEC$ENDIF
+         !DEC$ATTRIBUTES reference :: object_name
+         INTEGER(HID_T)  , INTENT(IN) :: loc_id
+         CHARACTER(LEN=*), INTENT(IN) :: object_name
+         INTEGER(SIZE_T)              :: namelen
+         INTEGER         , INTENT(IN) :: index_type
+         INTEGER         , INTENT(IN) :: order
+         TYPE(C_FUNPTR)  , VALUE      :: op
+         TYPE(C_PTR)     , VALUE      :: op_data
+         INTEGER(HID_T)  , INTENT(IN) :: lapl_id
+       END FUNCTION h5ovisit_by_name_c
+    END INTERFACE
+
+    namelen = LEN(object_name)
+
+    lapl_id_default = H5P_DEFAULT_F
+    IF(PRESENT(lapl_id)) lapl_id_default = lapl_id
+
+    return_value = h5ovisit_by_name_c(loc_id, object_name, namelen, index_type, order, &
+         op, op_data, lapl_id_default)
+
+    IF(return_value.GE.0)THEN
+       hdferr = 0
+    ELSE
+       hdferr = -1
+    END IF
+
+  END SUBROUTINE h5ovisit_by_name_f
+
 END MODULE H5O_PROVISIONAL
 
diff --git a/fortran/src/H5Pff.f90 b/fortran/src/H5Pff.f90
index d50e3b9..4254b7f 100644
--- a/fortran/src/H5Pff.f90
+++ b/fortran/src/H5Pff.f90
@@ -6419,3 +6419,5 @@ SUBROUTINE h5pset_attr_phase_change_f(ocpl_id, max_compact, min_dense, hdferr)
 
 END MODULE H5P
 
+
+
diff --git a/fortran/src/H5_f.c b/fortran/src/H5_f.c
index 7b55384..4c85df2 100644
--- a/fortran/src/H5_f.c
+++ b/fortran/src/H5_f.c
@@ -398,7 +398,11 @@ nh5init_flags_c( int_f *h5d_flags, int_f *h5e_flags, hid_t_f *h5e_hid_flags, int
     h5d_flags[19] = (int_f)H5D_CHUNK_CACHE_NSLOTS_DEFAULT;
     h5d_flags[20] = (int_f)H5D_CHUNK_CACHE_NBYTES_DEFAULT;
     h5d_flags[21] = (int_f)H5D_CHUNK_CACHE_W0_DEFAULT;
-
+    h5d_flags[22] = (int_f)H5D_MPIO_NO_COLLECTIVE;
+    h5d_flags[23] = (int_f)H5D_MPIO_CHUNK_INDEPENDENT;
+    h5d_flags[24] = (int_f)H5D_MPIO_CHUNK_COLLECTIVE;
+    h5d_flags[25] = (int_f)H5D_MPIO_CHUNK_MIXED;
+    h5d_flags[26] = (int_f)H5D_MPIO_CONTIGUOUS_COLLECTIVE;
 /*
  *  H5E flags
  */
diff --git a/fortran/src/H5f90global.f90 b/fortran/src/H5f90global.f90
index 3d4f7f8..2ee0edf 100644
--- a/fortran/src/H5f90global.f90
+++ b/fortran/src/H5f90global.f90
@@ -354,7 +354,7 @@ MODULE H5GLOBAL
   ! H5D flags declaration
   !
 
-  INTEGER, PARAMETER :: H5D_FLAGS_LEN = 22
+  INTEGER, PARAMETER :: H5D_FLAGS_LEN = 27
   INTEGER H5D_flags(H5D_FLAGS_LEN)
   !DEC$if defined(BUILD_HDF5_DLL)
   !DEC$ATTRIBUTES DLLEXPORT :: /H5D_FLAGS/
@@ -387,10 +387,17 @@ MODULE H5GLOBAL
 
 ! shortened "_DEFAULT" to "_DFLT" to satisfy the limit of 31
 ! characters for variable names in Fortran.
+! shortened "_CONTIGUOUS" to "_CONTIG" to satisfy the limit of 31
+! characters for variable names in Fortran.
 
   INTEGER :: H5D_CHUNK_CACHE_NSLOTS_DFLT_F
   INTEGER :: H5D_CHUNK_CACHE_NBYTES_DFLT_F
   INTEGER :: H5D_CHUNK_CACHE_W0_DFLT_F
+  INTEGER :: H5D_MPIO_NO_COLLECTIVE_F
+  INTEGER :: H5D_MPIO_CHUNK_INDEPENDENT_F
+  INTEGER :: H5D_MPIO_CHUNK_COLLECTIVE_F
+  INTEGER :: H5D_MPIO_CHUNK_MIXED_F
+  INTEGER :: H5D_MPIO_CONTIG_COLLECTIVE_F
 
   EQUIVALENCE(H5D_flags(1), H5D_COMPACT_F)
   EQUIVALENCE(H5D_flags(2), H5D_CONTIGUOUS_F)
@@ -419,6 +426,11 @@ MODULE H5GLOBAL
   EQUIVALENCE(H5D_flags(20), H5D_CHUNK_CACHE_NSLOTS_DFLT_F)
   EQUIVALENCE(H5D_flags(21), H5D_CHUNK_CACHE_NBYTES_DFLT_F)
   EQUIVALENCE(H5D_flags(22), H5D_CHUNK_CACHE_W0_DFLT_F)
+  EQUIVALENCE(H5D_flags(23), H5D_MPIO_NO_COLLECTIVE_IO_F)
+  EQUIVALENCE(H5D_flags(24), H5D_MPIO_CHUNK_INDEPENDENT_F)
+  EQUIVALENCE(H5D_flags(25), H5D_MPIO_CHUNK_COLLECTIVE_F)
+  EQUIVALENCE(H5D_flags(26), H5D_MPIO_CHUNK_MIXED_F)
+  EQUIVALENCE(H5D_flags(27), H5D_MPIO_CONTIG_COLLECTIVE_F)
 
   !
   ! H5E flags declaration
diff --git a/fortran/src/hdf5_fortrandll.def b/fortran/src/hdf5_fortrandll.def
index 735189a..9a687f2 100644
--- a/fortran/src/hdf5_fortrandll.def
+++ b/fortran/src/hdf5_fortrandll.def
@@ -284,10 +284,25 @@ H5L_mp_H5LIS_REGISTERED_F
 H5L_mp_H5LMOVE_F

 H5L_mp_H5LGET_NAME_BY_IDX_F

 ; H5O

+H5O_mp_H5OCLOSE_F

 H5O_mp_H5OCOPY_F

+H5O_mp_H5ODECR_REFCOUNT_F

+H5O_mp_H5OEXISTS_BY_NAME_F

+H5O_mp_H5OGET_COMMENT_F

+H5O_mp_H5OGET_COMMENT_BY_NAME_F

+H5O_mp_H5OGET_INFO_BY_IDX_F

+H5O_mp_H5OGET_INFO_BY_NAME_F

+H5O_mp_H5OGET_INFO_F

+H5O_mp_H5OINCR_REFCOUNT_F

 H5O_mp_H5OLINK_F

-H5O_mp_H5OOPEN_F

 H5O_mp_H5OOPEN_BY_ADDR_F

+H5O_mp_H5OOPEN_BY_IDX_F

+H5O_mp_H5OOPEN_F

+H5O_mp_H5OSET_COMMENT_F

+H5O_mp_H5OSET_COMMENT_BY_NAME_F

+H5O_mp_H5OVISIT_BY_NAME_F

+H5O_mp_H5OVISIT_F

+

 ; H5P

 H5P_mp_H5PCREATE_F

 H5P_mp_H5PSET_PRESERVE_F

diff --git a/fortran/test/Makefile.am b/fortran/test/Makefile.am
index b261785..42dd127 100644
--- a/fortran/test/Makefile.am
+++ b/fortran/test/Makefile.am
@@ -68,7 +68,7 @@ fortranlib_test_1_8_SOURCES = fortranlib_test_1_8.f90 \
 
 if FORTRAN_2003_CONDITIONAL_F
    fortranlib_test_F03_SOURCES = fortranlib_test_F03.f90 \
-	tH5F.f90 tH5E_F03.f90 tH5L_F03.f90 tH5P_F03.f90 tH5T_F03.f90
+	tH5F.f90 tH5E_F03.f90 tH5L_F03.f90 tH5O_F03.f90 tH5P_F03.f90 tH5T_F03.f90
 endif
 
 
diff --git a/fortran/test/Makefile.in b/fortran/test/Makefile.in
index 33f1022..43df446 100644
--- a/fortran/test/Makefile.in
+++ b/fortran/test/Makefile.in
@@ -136,11 +136,13 @@ fortranlib_test_1_8_LDADD = $(LDADD)
 fortranlib_test_1_8_DEPENDENCIES = libh5test_fortran.la $(LIBH5TEST) \
 	$(LIBH5F) $(LIBHDF5)
 am__fortranlib_test_F03_SOURCES_DIST = fortranlib_test_F03.f90 \
-	tH5F.f90 tH5E_F03.f90 tH5L_F03.f90 tH5P_F03.f90 tH5T_F03.f90
+	tH5F.f90 tH5E_F03.f90 tH5L_F03.f90 tH5O_F03.f90 tH5P_F03.f90 \
+	tH5T_F03.f90
 @FORTRAN_2003_CONDITIONAL_F_TRUE@am_fortranlib_test_F03_OBJECTS = fortranlib_test_F03.$(OBJEXT) \
 @FORTRAN_2003_CONDITIONAL_F_TRUE@	tH5F.$(OBJEXT) \
 @FORTRAN_2003_CONDITIONAL_F_TRUE@	tH5E_F03.$(OBJEXT) \
 @FORTRAN_2003_CONDITIONAL_F_TRUE@	tH5L_F03.$(OBJEXT) \
+@FORTRAN_2003_CONDITIONAL_F_TRUE@	tH5O_F03.$(OBJEXT) \
 @FORTRAN_2003_CONDITIONAL_F_TRUE@	tH5P_F03.$(OBJEXT) \
 @FORTRAN_2003_CONDITIONAL_F_TRUE@	tH5T_F03.$(OBJEXT)
 fortranlib_test_F03_OBJECTS = $(am_fortranlib_test_F03_OBJECTS)
@@ -527,7 +529,7 @@ fortranlib_test_1_8_SOURCES = fortranlib_test_1_8.f90 \
         tH5F.f90 tH5O.f90 tH5A_1_8.f90 tH5G_1_8.f90
 
 @FORTRAN_2003_CONDITIONAL_F_TRUE@fortranlib_test_F03_SOURCES = fortranlib_test_F03.f90 \
-@FORTRAN_2003_CONDITIONAL_F_TRUE@	tH5F.f90 tH5E_F03.f90 tH5L_F03.f90 tH5P_F03.f90 tH5T_F03.f90
+@FORTRAN_2003_CONDITIONAL_F_TRUE@	tH5F.f90 tH5E_F03.f90 tH5L_F03.f90 tH5O_F03.f90 tH5P_F03.f90 tH5T_F03.f90
 
 fflush1_SOURCES = fflush1.f90
 fflush2_SOURCES = fflush2.f90
diff --git a/fortran/test/fortranlib_test_F03.f90 b/fortran/test/fortranlib_test_F03.f90
index c8830d6..a03241c 100644
--- a/fortran/test/fortranlib_test_F03.f90
+++ b/fortran/test/fortranlib_test_F03.f90
@@ -64,10 +64,7 @@ PROGRAM fortranlibtest_F03
 !  CALL write_test_status(ret_total_error, ' Test error API based on data I/O', total_error)
 
   WRITE(*,*)
-!     write(*,*)
-!     write(*,*) '========================================='
-!     write(*,*) 'Testing DATATYPE interface               '
-!     write(*,*) '========================================='
+
   ret_total_error = 0
   CALL test_array_compound_atomic(ret_total_error)
   CALL write_test_status(ret_total_error, ' Testing 1-D Array of Compound Datatypes Functionality', total_error)
@@ -122,15 +119,11 @@ PROGRAM fortranlibtest_F03
 
   ret_total_error = 0
   CALL test_create(ret_total_error)
-  CALL write_test_status(ret_total_error, &
-       ' Testing filling functions', &
-       total_error)
+  CALL write_test_status(ret_total_error, ' Testing filling functions', total_error)
 
   ret_total_error = 0
   CALL test_h5kind_to_type(total_error)
-  CALL write_test_status(ret_total_error, &
-       ' Test function h5kind_to_type', &
-       total_error)
+  CALL write_test_status(ret_total_error, ' Test function h5kind_to_type', total_error)
 
   ret_total_error = 0
   CALL test_array_bkg(ret_total_error)
@@ -142,7 +135,7 @@ PROGRAM fortranlibtest_F03
 
   ret_total_error = 0
   CALL test_iter_group(ret_total_error)
-  CALL write_test_status(ret_total_error, ' Testing Group Iteration Functionality', total_error)
+  CALL write_test_status(ret_total_error, ' Testing group iteration functionality', total_error)
 
   ret_total_error = 0
   CALL test_nbit(ret_total_error)
@@ -154,7 +147,18 @@ PROGRAM fortranlibtest_F03
 !     write(*,*) 'Testing GROUP interface             '
 !     write(*,*) '========================================='
 
-  
+  ret_total_error = 0
+  CALL test_h5o_refcount(ret_total_error)
+  CALL write_test_status(ret_total_error, ' Testing object functions ', total_error)
+
+  ret_total_error = 0
+  CALL obj_visit(ret_total_error)
+  CALL write_test_status(ret_total_error, ' Testing object visiting functions ', total_error)
+
+  ret_total_error = 0
+  CALL obj_info(ret_total_error)
+  CALL write_test_status(ret_total_error, ' Testing object info functions ', total_error)
+
   WRITE(*,*)
 
   WRITE(*,*) '                  ============================================  '
diff --git a/fortran/test/tH5O.f90 b/fortran/test/tH5O.f90
index 247d1d0..b68e7ca 100644
--- a/fortran/test/tH5O.f90
+++ b/fortran/test/tH5O.f90
@@ -35,15 +35,8 @@ SUBROUTINE test_h5o(cleanup, total_error)
   INTEGER, INTENT(OUT) :: total_error
   INTEGER :: error
 
-  ! /* Output message about test being performed */
-  ! WRITE(*,*) "Testing Objects"
-
-!!$  test_h5o_open();		/* Test generic OPEN FUNCTION */
-!!$  test_h5o_open_by_addr();	/* Test opening objects by address */
-!!$  test_h5o_close();		/* Test generic CLOSE FUNCTION */
-!!$  test_h5o_refcount();        /* Test incrementing and decrementing reference count */
-  CALL test_h5o_plist(total_error)           ! /* Test object creation properties */
-  CALL test_h5o_link(total_error) ! /* Test object link routine */
+  CALL test_h5o_plist(total_error) ! Test object creation properties
+  CALL test_h5o_link(total_error) ! Test object link routine
 
   IF(cleanup) CALL h5_cleanup_f("TestFile", H5P_DEFAULT_F, error)
   CALL check("h5_cleanup_f", error, total_error)
@@ -100,6 +93,19 @@ SUBROUTINE test_h5o_link(total_error)
   INTEGER(HSIZE_T), DIMENSION(1:1)    :: dims2 = (/dim0/) ! size read/write buffer
   INTEGER         , DIMENSION(1:dim0) :: wdata2, &  ! Write buffer 
                                          rdata2     ! Read buffer
+  LOGICAL :: link_exists
+  CHARACTER(LEN=8)  :: chr_exact
+  CHARACTER(LEN=10) :: chr_lg
+  INTEGER(size_t) :: nlinks
+  INTEGER(HID_T) :: plist = -1
+
+  CHARACTER(LEN=20) :: dset_comment = "dataset comment"
+  CHARACTER(LEN=13) :: grp_comment = "group comment"
+  CHARACTER(LEN=10) :: comment_sm ! to small comment sized buffer
+  CHARACTER(LEN=15) :: comment ! exact comment sized buffer
+  CHARACTER(LEN=20) :: comment_lg ! large comment sized buffer
+  INTEGER(HSSIZE_T) :: comment_size
+  INTEGER(SIZE_T)   :: comment_size2
 
   !  Initialize the raw data 
   DO i = 1, TEST6_DIM1
@@ -131,8 +137,6 @@ SUBROUTINE test_h5o_link(total_error)
   CALL H5Pset_libver_bounds_f(fapl_id, H5F_LIBVER_LATEST_F, H5F_LIBVER_LATEST_F, error)
   CALL check("H5Pset_libver_bounds_f",error, total_error)
 
-!!$ ret = H5Pset_libver_bounds(fapl_id, (new_format ? H5F_LIBVER_LATEST : H5F_LIBVER_EARLIEST), H5F_LIBVER_LATEST);
-
   !  Create a new HDF5 file 
   CALL H5Fcreate_f(TEST_FILENAME, H5F_ACC_TRUNC_F, file_id, error, H5P_DEFAULT_F, fapl_id)
   CALL check("H5Fcreate_f", error, total_error)
@@ -155,10 +159,9 @@ SUBROUTINE test_h5o_link(total_error)
   !  Create a dataset with no name using the committed datatype
   CALL H5Dcreate_anon_f(file_id, type_id, space_id, dset_id, error ) ! using no optional parameters
   CALL check("H5Dcreate_anon_f",error,total_error)
-
-
+  !
   !  Verify that we can write to and read from the dataset 
-
+  !
   !  Write the data to the dataset 
 
 !EP  CALL h5dwrite_f(dset_id, H5T_NATIVE_INTEGER, wdata, dims, error, &
@@ -199,7 +202,6 @@ SUBROUTINE test_h5o_link(total_error)
   CALL h5tclose_f(type_id, error)
   CALL check("h5tclose_f", error, total_error)
 
-
   !  Re-open datatype using new link 
   CALL H5Topen_f(group_id, "datatype", type_id, error)
   CALL check("h5topen_f", error, total_error)
@@ -208,12 +210,10 @@ SUBROUTINE test_h5o_link(total_error)
   CALL H5Olink_f(group_id, file_id, "/group", error)
   CALL check("H5Olink_f", error, total_error)
 
-
   CALL h5gclose_f(group_id, error)
   CALL check("h5gclose_f",error,total_error)
 
   !  Open dataset through root group and verify its data 
-
   CALL H5Dopen_f(file_id, "/group/inter_group/dataset", dset_id, error)
   CALL check("test_lcpl.h5dopen_f", error, total_error)
 
@@ -236,7 +236,6 @@ SUBROUTINE test_h5o_link(total_error)
   CALL h5tclose_f(type_id, error)
   CALL check("h5tclose_f",error,total_error)
 
-
   !  Close remaining IDs 
   CALL h5sclose_f(space_id, error)
   CALL check("h5sclose_f",error,total_error)
@@ -264,16 +263,214 @@ SUBROUTINE test_h5o_link(total_error)
   CALL check("h5gcreate_f", error, total_error)
   CALL h5gcreate_f(file_id,"/G1/G2/G3",group_id,error)
   CALL check("h5gcreate_f", error, total_error)
+
+  ! Try putting a comment on the group /G1/G2/G3 by name
+  CALL h5oset_comment_by_name_f(file_id, "/G1/G2/G3", grp_comment, error)
+  CALL check("h5oset_comment_by_name_f", error, total_error)
+
+  comment_lg = ' '
+
+  CALL h5oget_comment_by_name_f(file_id, "/G1/G2/G3", comment_lg, error) 
+  CALL check("h5oget_comment_by_name_f", error, total_error)
+
+  IF(comment_lg(1:13).NE.grp_comment)THEN
+     CALL check("h5oget_comment_by_name_f", -1, total_error)
+  ENDIF
+  IF(comment_lg(14:20).NE.'       ')THEN ! make sure no NULL terminator
+     CALL check("h5oget_comment_by_name_f", -1, total_error)
+  ENDIF
+
+  ! Try putting a comment on the group /G1/G2/G3 by name with trailing blanks
+
+  CALL h5oset_comment_by_name_f(file_id, "/G1/G2/G3"//'  ', grp_comment, error)
+  CALL check("h5oset_comment_by_name_f", error, total_error)
+
+  comment_lg = ' '
+
+  CALL h5oget_comment_by_name_f(file_id, "/G1/G2/G3"//'  ', comment_lg, error) 
+  CALL check("h5oget_comment_by_name_f", error, total_error)
+
+  IF(comment_lg(1:13).NE.grp_comment)THEN
+     CALL check("h5oget_comment_by_name_f", -1, total_error)
+  ENDIF
+  IF(comment_lg(14:20).NE.'       ')THEN ! make sure no NULL terminator
+     CALL check("h5oget_comment_by_name_f", -1, total_error)
+  ENDIF
+
   !
   ! Create the dataset
   !
   CALL h5dcreate_f(group_id, dataset, H5T_STD_I32LE, space_id, dset_id, error)
   CALL check("h5dcreate_f", error, total_error)
+
+  ! Putting a comment on the dataset
+  CALL h5oset_comment_f(dset_id, dset_comment, error)
+  CALL check("h5oset_comment_f", error, total_error)
+
+  ! Try reading into a buffer that is the correct size
+
+  CALL h5oget_comment_f(dset_id, comment, error) 
+  CALL check("h5oget_comment_f", error, total_error)
+
+  IF(comment(1:15).NE.dset_comment(1:15))THEN
+     CALL check("h5oget_comment_f", -1, total_error)
+  ENDIF
+
+  ! Try reading into a buffer that is to small
+
+  CALL h5oget_comment_f(dset_id, comment_sm, error) 
+  CALL check("h5oget_comment_f", error, total_error)
+
+  IF(comment_sm(1:10).NE.dset_comment(1:10))THEN
+     CALL check("h5oget_comment_f", -1, total_error)
+  ENDIF 
+
+ ! Try reading into a buffer that is larger then needed
+
+  comment_lg = ' '
+
+  CALL h5oget_comment_f(dset_id, comment_lg, error) 
+  CALL check("h5oget_comment_f", error, total_error)
+
+  IF(comment_lg(1:15).NE.dset_comment)THEN
+     CALL check("h5oget_comment_f", -1, total_error)
+  ENDIF
+  IF(comment_lg(16:20).NE.'     ')THEN ! make sure no NULL terminator
+     CALL check("h5oget_comment_f", -1, total_error)
+  ENDIF
+  !
+  ! Check optional parameter
+  !
+  CALL h5oget_comment_f(dset_id, comment_lg, error, comment_size) 
+  CALL check("h5oget_comment_f", error, total_error)
+
+  IF( comment_size.NE.15)THEN
+     CALL check("h5oget_comment_f", -1, total_error)
+  ENDIF
+
+  ! CHECK h5oget_comment_by_name_f
+
+  ! Try reading into a buffer that is the correct size
+
+  CALL h5oget_comment_by_name_f(dset_id, ".", comment, error) 
+  CALL check("h5oget_comment_by_name_f", error, total_error)
+
+  IF(comment(1:15).NE.dset_comment(1:15))THEN
+     CALL check("h5oget_comment_by_name_f", -1, total_error)
+  ENDIF
+
+  ! Try with trailing blanks in the name
+
+  CALL h5oget_comment_by_name_f(dset_id, ".     ", comment, error) 
+  CALL check("h5oget_comment_by_name_f", error, total_error)
+
+  IF(comment(1:15).NE.dset_comment(1:15))THEN
+     CALL check("h5oget_comment_by_name_f", -1, total_error)
+  ENDIF
+
+  !
+  ! Check optional parameter
+  !
+  CALL h5oget_comment_by_name_f(dset_id, ".     ", comment_lg, error, comment_size2) 
+  CALL check("h5oget_comment_by_name_f", error, total_error)
+
+  IF( comment_size2.NE.15)THEN
+     CALL check("h5oget_comment_by_name_f", -1, total_error)
+  ENDIF
+
   !
   ! Write the data to the dataset.
   !
   CALL h5dwrite_f(dset_id, H5T_NATIVE_INTEGER, wdata2, dims2, error)
   CALL check("h5dwrite_f", error, total_error)
+
+  ! *************************
+  ! CHECK H5OEXISTS_BY_NAME_F
+  ! *************************
+
+  ! Create a soft link to /G1
+  CALL h5lcreate_soft_f("/G1", file_id, "/G1_LINK", error)
+  CALL check("h5lcreate_soft_f", error, total_error)
+
+
+  ! Create a soft link to /G1000, does not exist
+  CALL h5lcreate_soft_f("/G1000", file_id, "/G1_FALSE", error)
+  CALL check("h5lcreate_soft_f", error, total_error)
+
+  ! Create a soft link to /G1_LINK
+  CALL h5lcreate_soft_f("/G1_FALSE", file_id, "/G2_FALSE", error)
+  CALL check("h5lcreate_soft_f", error, total_error)
+
+  ! See if the link exists
+  CALL h5oexists_by_name_f(file_id,"/G1_LINK", link_exists, error)
+  CALL check("h5oexists_by_name_f", error, total_error)
+
+  ! Object should exist
+  IF(.NOT.link_exists)THEN
+     CALL check("h5oexists_by_name_f", -1, total_error)
+  ENDIF
+
+  chr_exact = "/G1_LINK"
+  ! See if the link exists
+  CALL h5oexists_by_name_f(file_id,chr_exact, link_exists, error, H5P_DEFAULT_F)
+  CALL check("h5oexists_by_name_f", error, total_error)
+
+  ! Object should exist
+  IF(.NOT.link_exists)THEN
+     CALL check("h5oexists_by_name_f", -1, total_error)
+  ENDIF
+
+  chr_lg = "/G1_LINK"
+  ! See if the link exists
+  CALL h5oexists_by_name_f(file_id,chr_lg, link_exists, error, H5P_DEFAULT_F)
+  CALL check("h5oexists_by_name_f", error, total_error)
+
+  ! Object should exist
+  IF(.NOT.link_exists)THEN
+     CALL check("h5oexists_by_name_f", -1, total_error)
+  ENDIF
+
+  chr_lg = "/G1_LINK  "
+  ! See if the link exists
+  CALL h5oexists_by_name_f(file_id,chr_lg, link_exists, error, H5P_DEFAULT_F)
+  CALL check("h5oexists_by_name_f", error, total_error)
+
+  ! Object should exist
+  IF(.NOT.link_exists)THEN
+     CALL check("h5oexists_by_name_f", -1, total_error)
+  ENDIF
+
+  ! See if the link exists
+  CALL h5oexists_by_name_f(file_id,"/G1_FALSE", link_exists, error)
+  CALL check("h5oexists_by_name_f", error, total_error)
+
+  ! Object should not exist
+  IF(link_exists)THEN
+     CALL check("h5oexists_by_name_f", -1, total_error)
+  ENDIF
+
+  ! Check optional parameter
+
+  CALL h5pcreate_f(H5P_LINK_ACCESS_F,plist,error)
+  CALL check("h5pcreate_f",error,total_error)
+
+  nlinks = 2
+  CALL h5pset_nlinks_f(plist, nlinks, error)
+  CALL check("h5pset_nlinks_f", error, total_error)
+  ! Ensure that nlinks was set successfully
+  nlinks = 0
+  CALL h5pget_nlinks_f(plist, nlinks, error)
+  CALL check("h5pget_nlinks_f",error,total_error)
+  CALL VERIFY("h5pget_nlinks_f", INT(nlinks), 2, total_error)
+
+  ! See if the link exists
+  CALL h5oexists_by_name_f(file_id,"/G1_LINK", link_exists, error, plist)
+  CALL check("h5oexists_by_name_f", error, total_error)
+
+  ! Object should exist
+  IF(.not.link_exists)THEN
+     CALL check("h5oexists_by_name_f", -1, total_error)
+  ENDIF
   !
   ! Close and release resources.
   !
@@ -283,6 +480,14 @@ SUBROUTINE test_h5o_link(total_error)
   CALL check("h5sclose_f", error, total_error)
   CALL h5gclose_f(group_id, error)
   CALL check("h5gclose_f", error, total_error)
+
+  ! Test opening an object by index, note 
+  CALL h5oopen_by_idx_f(file_id, "/G1/G2/G3", H5_INDEX_NAME_F, H5_ITER_INC_F, 0_hsize_t, group_id, error)
+  CALL check("h5oopen_by_idx_f", error, total_error)
+
+  CALL h5oclose_f(group_id, error)
+  CALL check("h5gclose_f", error, total_error)
+
   !
   ! create property to pass copy options
   !
@@ -324,7 +529,7 @@ SUBROUTINE test_h5o_link(total_error)
   CALL h5tcopy_f(H5T_NATIVE_INTEGER, tid, error)
   CALL check("h5tcopy_f", error, total_error)
 
-    ! create named datatype
+  ! create named datatype
   CALL h5tcommit_f(file_id, NAME_DATATYPE_SIMPLE, tid, error)
   CALL check("h5tcommit_f", error, total_error)
 
@@ -346,8 +551,7 @@ SUBROUTINE test_h5o_link(total_error)
   ! Compare the datatypes
   CALL h5tequal_f(tid, tid2, flag, error)
   IF(.NOT.flag)THEN
-     WRITE(*,*) "h5ocopy_f FAILED" 
-     total_error = total_error + 1
+     CALL check("h5ocopy_f FAILED", -1, total_error)
   ENDIF
 
   ! close the destination datatype
@@ -436,7 +640,6 @@ SUBROUTINE test_h5o_plist(total_error)
   CALL VERIFY("H5Pget_attr_phase_change_f", max_compact, (def_max_compact + 1), total_error)
   CALL VERIFY("H5Pget_attr_phase_change_f", min_dense, (def_min_dense - 1), total_error)
 
-
   ! Create a group, dataset, and committed datatype within the file,
   ! using the respective type of creation property lists.
   ! 
@@ -472,7 +675,6 @@ SUBROUTINE test_h5o_plist(total_error)
   CALL h5sclose_f(dspace, error)
   CALL check("h5sclose_f",error,total_error)
 
-
   !  Close current creation property lists 
   CALL h5pclose_f(gcpl,error)
   CALL check("h5pclose_f", error, total_error)
@@ -482,7 +684,6 @@ SUBROUTINE test_h5o_plist(total_error)
   CALL check("h5pclose_f", error, total_error)
 
   !  Retrieve each object's creation property list 
-
   CALL H5Gget_create_plist_f(grp, gcpl, error)
   CALL check("H5Gget_create_plist", error, total_error)
 
@@ -492,7 +693,6 @@ SUBROUTINE test_h5o_plist(total_error)
   CALL H5Dget_create_plist_f(dset, dcpl, error)
   CALL check("H5Dget_create_plist_f", error, total_error)
 
-
   !  Retrieve attribute phase change values on each creation property list and verify 
   CALL H5Pget_attr_phase_change_f(gcpl, max_compact, min_dense, error)
   CALL check("H5Pget_attr_phase_change_f", error, total_error)
@@ -509,9 +709,7 @@ SUBROUTINE test_h5o_plist(total_error)
   CALL VERIFY("H5Pget_attr_phase_change_f", max_compact, (def_max_compact + 1), total_error)
   CALL VERIFY("H5Pget_attr_phase_change_f", min_dense, (def_min_dense - 1), total_error)
 
-
   ! Close current objects 
-
   CALL h5pclose_f(gcpl,error)
   CALL check("h5pclose_f", error, total_error)
   CALL h5pclose_f(dcpl,error)
@@ -552,7 +750,6 @@ SUBROUTINE test_h5o_plist(total_error)
   CALL H5Dget_create_plist_f(dset, dcpl, error)
   CALL check("H5Dget_create_plist_f", error, total_error)
 
-
   !  Retrieve attribute phase change values on each creation property list and verify 
   CALL H5Pget_attr_phase_change_f(gcpl, max_compact, min_dense, error)
   CALL check("H5Pget_attr_phase_change_f", error, total_error)
@@ -569,9 +766,7 @@ SUBROUTINE test_h5o_plist(total_error)
   CALL VERIFY("H5Pget_attr_phase_change_f", max_compact, (def_max_compact + 1), total_error)
   CALL VERIFY("H5Pget_attr_phase_change_f", min_dense, (def_min_dense - 1), total_error)
 
-
   !  Close current objects 
-
   CALL h5pclose_f(gcpl,error)
   CALL check("h5pclose_f", error, total_error)
   CALL h5pclose_f(dcpl,error)
diff --git a/fortran/test/tH5O_F03.f90 b/fortran/test/tH5O_F03.f90
new file mode 100644
index 0000000..e969c4a
--- /dev/null
+++ b/fortran/test/tH5O_F03.f90
@@ -0,0 +1,547 @@
+!****h* root/fortran/test/tH5O_F03.f90
+!
+! NAME
+!  tH5O_F03.f90
+!
+! FUNCTION
+!  Test FORTRAN HDF5 H5O APIs which are dependent on FORTRAN 2003
+!  features. 
+!
+! COPYRIGHT
+! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+!   Copyright by The HDF Group.                                               *
+!   Copyright by the Board of Trustees of the University of Illinois.         *
+!   All rights reserved.                                                      *
+!                                                                             *
+!   This file is part of HDF5.  The full HDF5 copyright notice, including     *
+!   terms governing use, modification, and redistribution, is contained in    *
+!   the files COPYING and Copyright.html.  COPYING can be found at the root   *
+!   of the source code distribution tree; Copyright.html can be found at the  *
+!   root level of an installed copy of the electronic HDF5 document set and   *
+!   is linked from the top-level documents page.  It can also be found at     *
+!   http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+!   access to either file, you may request a copy from help@hdfgroup.org.     *
+! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+!
+!*****
+
+! *****************************************
+! ***        H 5 O   T E S T S
+! *****************************************
+MODULE visit_cb
+
+  USE HDF5 
+  USE ISO_C_BINDING
+  
+  IMPLICIT NONE
+
+  INTEGER, PARAMETER :: info_size = 9
+
+  !-------------------------------------------------------------------------
+  ! Function:    visit_obj_cb
+  !
+  ! Purpose:     Callback routine for visiting objects in a file
+  !
+  ! Return:      Success:        0
+  !              Failure:        -1
+  !
+  ! Programmer:  M.S. Breitenfeld
+  !              July 12, 2012
+  !              Adopted from C test.
+  !
+  !-------------------------------------------------------------------------
+  !
+  ! Object visit structs
+  TYPE, bind(c) :: obj_visit_t
+     CHARACTER(LEN=1), DIMENSION(1:180) :: path   ! Path to object
+     INTEGER(c_int) :: type_obj ! type of object
+  END TYPE obj_visit_t
+
+  TYPE, bind(c) :: ovisit_ud_t
+     INTEGER(c_int) :: idx              ! Index in object visit structure
+     TYPE(obj_visit_t), DIMENSION(1:info_size) :: info   ! Pointer to the object visit structure to use
+  END TYPE ovisit_ud_t
+
+CONTAINS
+
+  INTEGER FUNCTION visit_obj_cb( group_id, name, oinfo, op_data) bind(C)
+
+    IMPLICIT NONE
+
+    INTEGER(HID_T) :: group_id
+    CHARACTER(LEN=1), DIMENSION(1:180) :: name
+    TYPE(h5o_info_t) :: oinfo
+    TYPE(ovisit_ud_t) :: op_data
+
+    INTEGER :: len, i
+    INTEGER(C_INT) :: idx
+
+    visit_obj_cb = 0
+
+    ! Since the name is generated in C and passed to a Fortran string, it
+    ! will be NULL terminated, so we need to find the end of the string.
+
+    len = 1
+    DO len = 1, 180
+       IF(name(len) .EQ. C_NULL_CHAR) EXIT
+    ENDDO
+
+    len = len - 1
+
+    ! Check for correct object information
+
+    idx = op_data%idx
+
+    DO i = 1, len
+       IF(op_data%info(idx)%path(i)(1:1) .NE. name(i)(1:1))THEN
+          visit_obj_cb = -1
+          RETURN
+       ENDIF
+       
+       IF(op_data%info(idx)%type_obj .NE. oinfo%type)THEN
+          visit_obj_cb = -1
+          RETURN
+       ENDIF
+
+    ENDDO
+
+    ! Advance to next location in expected output
+    op_data%idx = op_data%idx + 1
+
+  END FUNCTION visit_obj_cb
+
+END MODULE visit_cb
+
+!/****************************************************************
+!**
+!**  test_h5o_refcount(): Test H5O refcounting functions.
+!**
+!****************************************************************/
+
+SUBROUTINE test_h5o_refcount(total_error)
+
+  USE HDF5 
+  USE ISO_C_BINDING
+  IMPLICIT NONE
+
+  INTEGER, INTENT(INOUT) :: total_error
+
+  CHARACTER(LEN=11), PARAMETER :: FILENAME = "th5o_ref.h5"
+  INTEGER, PARAMETER :: DIM0 = 5
+  INTEGER, PARAMETER :: DIM1 = 10
+  INTEGER(hid_t) :: fid ! HDF5 File ID
+  INTEGER(hid_t) :: grp, dset, dtype, dspace ! Object identifiers
+  TYPE(h5o_info_t) :: oinfo                  ! Object info struct
+  INTEGER(hsize_t), DIMENSION(1:2) :: dims
+  INTEGER :: error                           ! Value returned from API calls
+
+  ! Create a new HDF5 file
+  CALL h5fcreate_f(FILENAME,H5F_ACC_TRUNC_F,fid,error)
+  CALL check("h5fcreate_f", error, total_error) 
+
+  ! Create a group, dataset, and committed datatype within the file
+  ! Create the group
+  CALL h5gcreate_f(fid, "group", grp, error)
+  CALL check("h5gcreate_f",error, total_error)
+
+  ! Commit the type inside the group
+  CALL h5tcopy_f(H5T_NATIVE_INTEGER, dtype, error)
+  CALL check("H5Tcopy_f",error, total_error)
+  CALL h5tcommit_f(fid, "datatype", dtype, error)
+  CALL check("h5tcommit_f", error, total_error)
+
+  ! Create the data space for the dataset.
+  dims(1) = DIM0
+  dims(2) = DIM1
+
+  CALL h5screate_simple_f(2, dims, dspace, error)
+  CALL check("h5screate_simple_f", error, total_error)
+
+  ! Create the dataset.
+  CALL h5dcreate_f(fid, "dataset", H5T_NATIVE_INTEGER, dspace, dset, error)
+  CALL check("h5dcreate_f", error, total_error)
+  CALL h5sclose_f(dspace, error)
+  CALL check("h5sclose_f", error, total_error)
+
+  ! Get ref counts for each object.  They should all be 1, since each object has a hard link.
+  CALL h5oget_info_by_name_f(fid, "group", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.1)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+  CALL h5oget_info_by_name_f(fid, "datatype", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.1)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+  CALL h5oget_info_by_name_f(fid, "dataset", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.1)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+
+  ! Check h5oget_info
+  CALL h5oget_info_f(grp, oinfo, error)
+  CALL check("h5oget_info_f", error, total_error)
+  IF(oinfo%rc.NE.1)THEN
+     CALL check("h5oget_info_f", -1, total_error)
+  ENDIF
+  IF(oinfo%type.NE.H5O_TYPE_GROUP_F)THEN
+     CALL check("h5oget_info_f", -1, total_error)
+  ENDIF
+
+  ! Increment each object's reference count.
+  CALL h5oincr_refcount_f(grp, error)
+  CALL check("h5oincr_refcount_f", error, total_error)
+  CALL h5oincr_refcount_f(dtype, error)
+  CALL check("h5oincr_refcount_f", error, total_error)
+  CALL h5oincr_refcount_f(dset, error)
+  CALL check("h5oincr_refcount_f", error, total_error)
+
+  ! Get ref counts for each object.  They should all be 2 now.
+  CALL h5oget_info_by_name_f(fid, "group", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.2)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+  CALL h5oget_info_by_name_f(fid, "datatype", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.2)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+  CALL h5oget_info_by_name_f(fid, "dataset", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.2)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+
+  ! Decrement the reference counts and check that they decrease back to 1.
+  CALL h5odecr_refcount_f(grp, error)
+  CALL check("h5oincr_refcount_f", error, total_error)
+  CALL h5odecr_refcount_f(dtype, error)
+  CALL check("h5oincr_refcount_f", error, total_error)
+  CALL h5odecr_refcount_f(dset, error)
+  CALL check("h5oincr_refcount_f", error, total_error)
+
+  CALL h5oget_info_by_name_f(fid, "group", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.1)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+  CALL h5oget_info_by_name_f(fid, "datatype", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.1)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+  CALL h5oget_info_by_name_f(fid, "dataset", oinfo, error)
+  CALL check("h5oget_info_by_name_f", error, total_error)
+  IF(oinfo%rc.NE.1)THEN
+     CALL check("h5oget_info_by_name_f", -1, total_error)
+  ENDIF
+
+  CALL h5gclose_f(grp, error)
+  CALL check("h5gclose_f",error, total_error)
+  CALL h5tclose_f(dtype, error)
+  CALL check("h5tclose_f",error, total_error)
+  CALL h5dclose_f(dset, error)
+  CALL check("h5dclose_f",error, total_error)
+  CALL h5fclose_f(fid, error)
+  CALL check("h5fclose_f",error, total_error)
+
+END SUBROUTINE test_h5o_refcount
+
+!****************************************************************
+!**
+!**  test_h5o_refcount(): Test H5O visit functions.
+!**
+!****************************************************************
+
+SUBROUTINE obj_visit(total_error)
+
+  USE HDF5
+
+  USE visit_cb
+  USE ISO_C_BINDING
+  IMPLICIT NONE
+
+  INTEGER, INTENT(INOUT) :: total_error
+
+  TYPE(ovisit_ud_t), TARGET :: udata ! User-data for visiting
+  INTEGER(hid_t) :: fid = -1
+  INTEGER(hid_t) :: gid = -1  ! Group ID
+  TYPE(C_PTR) :: f_ptr
+  TYPE(C_FUNPTR) :: fun_ptr
+  CHARACTER(LEN=180) :: object_name
+  INTEGER :: ret_val
+  INTEGER :: error
+
+  ! Construct "interesting" file to visit
+  CALL build_visit_file(fid)
+
+  ! Inialize udata for testing purposes
+  udata%info(1)%path(1:1) ="."
+  udata%info(1)%type_obj = H5O_TYPE_GROUP_F
+  udata%info(2)%path(1:12) = &
+       (/"D","a","t","a","s","e","t","_","z","e","r","o"/)
+  udata%info(2)%type_obj =H5O_TYPE_DATASET_F
+  udata%info(3)%path(1:6) = &
+       (/"G","r","o","u","p","1"/)
+  udata%info(3)%type_obj = H5O_TYPE_GROUP_F
+  udata%info(4)%path(1:18) =&
+       (/"G","r","o","u","p","1","/","D","a","t","a","s","e","t","_","o","n","e"/)
+  udata%info(4)%type_obj = H5O_TYPE_DATASET_F
+  udata%info(5)%path(1:13) =&
+       (/"G","r","o","u","p","1","/","G","r","o","u","p","2"/)
+  udata%info(5)%type_obj = H5O_TYPE_GROUP_F
+  udata%info(6)%path(1:25) =&
+       (/"G","r","o","u","p","1","/","G","r","o","u","p","2","/","D","a","t","a","s","e","t","_","t","w","o"/)
+  udata%info(6)%type_obj = H5O_TYPE_DATASET_F
+  udata%info(7)%path(1:22) =&
+       (/"G","r","o","u","p","1","/","G","r","o","u","p","2","/","T","y","p","e","_","t","w","o"/)
+  udata%info(7)%type_obj = H5O_TYPE_NAMED_DATATYPE_F
+  udata%info(8)%path(1:15) =&
+       (/"G","r","o","u","p","1","/","T","y","p","e","_","o","n","e"/)
+  udata%info(8)%type_obj = H5O_TYPE_NAMED_DATATYPE_F
+  udata%info(9)%path(1:9) =&
+       (/"T","y","p","e","_","z","e","r","o"/)
+  udata%info(9)%type_obj = H5O_TYPE_NAMED_DATATYPE_F
+
+  ! Visit all the objects reachable from the root group (with file ID)
+  udata%idx = 1
+
+  fun_ptr = C_FUNLOC(visit_obj_cb)
+  f_ptr = C_LOC(udata)
+
+  ! Test h5ovisit_f
+  CALL h5ovisit_f(fid, H5_INDEX_NAME_F, H5_ITER_INC_F, fun_ptr, f_ptr, ret_val, error)
+  CALL check("h5ovisit_f", error, total_error)
+  IF(ret_val.LT.0)THEN
+     CALL check("h5ovisit_f", -1, total_error)
+  ENDIF
+
+  ! Test h5ovisit_by_name_f
+
+  object_name = "/"
+  udata%idx = 1
+
+  CALL h5ovisit_by_name_f(fid, object_name, H5_INDEX_NAME_F, H5_ITER_INC_F, fun_ptr, f_ptr, ret_val, error)
+  CALL check("h5ovisit_by_name_f", error, total_error)
+  IF(ret_val.LT.0)THEN
+     CALL check("h5ovisit_by_name_f", -1, total_error)
+  ENDIF
+
+  CALL h5fclose_f(fid, error)
+  CALL check("h5fclose_f",error, total_error)
+
+END SUBROUTINE obj_visit
+
+!****************************************************************
+!**
+!**  test_h5o_refcount(): Test H5O info functions.
+!**
+!****************************************************************
+
+SUBROUTINE obj_info(total_error)
+
+  USE HDF5
+  USE ISO_C_BINDING
+  IMPLICIT NONE
+
+  INTEGER, INTENT(INOUT) :: total_error
+
+  INTEGER(hid_t) :: fid = -1             ! File ID 
+  INTEGER(hid_t) :: gid = -1, gid2 = -1  ! Group IDs 
+  INTEGER(hid_t) :: did                  ! Dataset ID 
+  INTEGER(hid_t) :: sid                  ! Dataspace ID 
+  TYPE(hobj_ref_t_f), TARGET :: wref     ! Reference to write 
+  TYPE(hobj_ref_t_f), TARGET :: rref     ! Reference to read
+  TYPE(H5O_info_t) :: oinfo              ! Object info struct 
+  INTEGER :: count = 0                   ! Count within iterated group 
+  INTEGER :: error
+  TYPE(C_PTR) :: f_ptr
+
+  CHARACTER(LEN=6) :: GROUPNAME   =    "/group"
+  CHARACTER(LEN=6) :: GROUPNAME2  =    "group2"
+  CHARACTER(LEN=6) :: GROUPNAME3  =    "group3"
+  CHARACTER(LEN=5) :: DSETNAME    =    "/dset"
+  CHARACTER(LEN=5) :: DSETNAME2   =    "dset2"
+
+  ! Create file with a group and a dataset containing an object reference to the group
+  CALL h5fcreate_f("get_info.h5", H5F_ACC_TRUNC_F, fid, error)
+  CALL check("h5fcreate_f",error, total_error)
+
+  ! Create dataspace to use for dataset
+  CALL h5screate_f(H5S_SCALAR_F, sid, error)
+  CALL check("h5screate_f",error,total_error)
+
+  ! Create group to refer to
+  CALL h5gcreate_f(fid,  GROUPNAME, gid, error)
+  CALL check("h5gcreate_f",error,total_error)
+
+  ! Create nested groups 
+  CALL h5gcreate_f(gid,  GROUPNAME2, gid2, error)
+  CALL check("h5gcreate_f",error,total_error)
+  CALL h5gclose_f(gid2, error)
+  CALL check("h5gclose_f",error,total_error)
+
+  CALL h5gcreate_f(gid,  GROUPNAME3, gid2, error)
+  CALL check("h5gcreate_f",error,total_error)
+  CALL h5gclose_f(gid2, error)
+  CALL check("h5gclose_f",error,total_error)
+
+  ! Create bottom dataset
+  CALL h5dcreate_f(gid, DSETNAME2, H5T_NATIVE_INTEGER, sid, did, error)
+  CALL check("h5dcreate_f",error, total_error)
+
+  CALL h5dclose_f(did, error)
+  CALL check("h5dclose_f", error, total_error)
+
+  CALL h5gclose_f(gid, error)
+  CALL check("h5gclose_f",error,total_error)
+
+  ! Create dataset
+  CALL h5dcreate_f(fid, DSETNAME, H5T_STD_REF_OBJ, sid, did, error)
+  CALL check("h5dcreate_f",error, total_error)
+
+  f_ptr = C_LOC(wref)
+
+  ! Create reference to group
+  CALL h5rcreate_f(fid, GROUPNAME, H5R_OBJECT_F, f_ptr, error)
+  CALL check("h5rcreate_f",error, total_error)
+
+  ! Write reference to disk
+  CALL h5dwrite_f(did, H5T_STD_REF_OBJ, f_ptr, error)
+  CALL check("h5dwrite_f",error, total_error)
+
+  ! Close objects 
+  CALL h5dclose_f(did, error)
+  CALL check("h5dclose_f", error, total_error)
+  CALL h5sclose_f(sid, error)
+  CALL check("h5sclose_f", error, total_error)
+  CALL h5fclose_f(fid, error)
+  CALL check("h5fclose_f", error, total_error)
+
+  ! Re-open file
+  CALL h5fopen_f("get_info.h5", H5F_ACC_RDWR_F, fid, error)
+  CALL check("h5fopen_f", error, total_error)
+
+  ! Re-open dataset
+  CALL h5dopen_f(fid, DSETNAME, did, error)
+  CALL check("h5dopen_f", error, total_error)
+
+  ! Read in the reference
+
+  f_ptr = C_LOC(rref)
+
+  CALL h5dread_f(did, H5T_STD_REF_OBJ, f_ptr, error)
+  CALL check("H5Dread_f",error, total_error)
+
+  ! Dereference to get the group
+
+  CALL h5rdereference_f(did, H5R_OBJECT_F, f_ptr, gid, error)
+  CALL check("h5rdereference_f", error, total_error)
+
+  CALL h5oget_info_by_idx_f(gid, ".", H5_INDEX_NAME_F, H5_ITER_INC_F, 0_hsize_t, oinfo, error)
+  CALL check("h5oget_info_by_idx_f", error, total_error)
+
+  IF(oinfo%rc.NE.1)THEN
+     CALL check("h5oget_info_by_idx_f", -1, total_error)
+  ENDIF
+
+  IF(oinfo%type.NE.H5O_TYPE_DATASET_F)THEN
+     CALL check("h5oget_info_by_idx_f", -1, total_error)
+  ENDIF
+
+  ! Close objects
+  CALL h5dclose_f(did, error)
+  CALL check("h5dclose_f", error, total_error)
+  CALL h5gclose_f(gid, error)
+  CALL check("h5sclose_f", error, total_error)
+  CALL h5fclose_f(fid, error)
+  CALL check("h5fclose_f", error, total_error)
+
+END SUBROUTINE obj_info
+
+!-------------------------------------------------------------------------
+! Function:    build_visit_file
+!
+! Purpose:     Build an "interesting" file to use for visiting links & objects
+!
+! Programmer:  M. Scot Breitenfeld
+!              July 12, 2012
+!              NOTE: Adapted from C test.
+!
+!-------------------------------------------------------------------------
+!
+
+SUBROUTINE build_visit_file(fid)
+
+  USE HDF5
+  IMPLICIT NONE
+
+  INTEGER(hid_t) :: fid                  ! File ID 
+  INTEGER(hid_t) :: gid = -1, gid2 = -1     ! Group IDs
+  INTEGER(hid_t) :: sid = -1              ! Dataspace ID
+  INTEGER(hid_t) :: did = -1              ! Dataset ID
+  INTEGER(hid_t) :: tid = -1              ! Datatype ID
+  CHARACTER(LEN=20) :: filename = 'visit.h5'
+  INTEGER :: error
+  
+  ! Create file for visiting
+  CALL H5Fcreate_f(filename, H5F_ACC_TRUNC_F, fid, error)
+
+  ! Create group
+  CALL H5Gcreate_f(fid, "/Group1", gid, error)
+
+  ! Create nested group
+  CALL H5Gcreate_f(gid, "Group2", gid2, error)
+
+  ! Close groups
+  CALL h5gclose_f(gid2, error)
+  CALL h5gclose_f(gid, error)
+
+  ! Create soft links to groups created
+  CALL H5Lcreate_soft_f("/Group1", fid, "/soft_one", error)
+  CALL H5Lcreate_soft_f("/Group1/Group2", fid, "/soft_two", error)
+
+  ! Create dangling soft link
+  CALL H5Lcreate_soft_f("nowhere", fid, "/soft_dangle", error)
+
+  ! Create hard links to all groups
+  CALL H5Lcreate_hard_f(fid, "/", fid, "hard_zero", error)
+  CALL H5Lcreate_hard_f(fid, "/Group1", fid, "hard_one", error)
+  CALL H5Lcreate_hard_f(fid, "/Group1/Group2", fid, "hard_two", error)
+
+  ! Create loops w/hard links
+  CALL H5Lcreate_hard_f(fid, "/Group1", fid, "/Group1/hard_one", error)
+  CALL H5Lcreate_hard_f(fid, "/", fid, "/Group1/Group2/hard_zero", error)
+
+  ! Create dataset in each group
+  CALL H5Screate_f(H5S_SCALAR_F, sid, error)
+
+  CALL H5Dcreate_f(fid, "/Dataset_zero", H5T_NATIVE_INTEGER, sid, did, error)
+  CALL H5Dclose_f(did, error)
+
+  CALL H5Dcreate_f(fid, "/Group1/Dataset_one", H5T_NATIVE_INTEGER, sid, did, error)
+  CALL H5Dclose_f(did, error)
+
+  CALL H5Dcreate_f(fid, "/Group1/Group2/Dataset_two", H5T_NATIVE_INTEGER, sid, did, error)
+  CALL H5Dclose_f(did, error)
+
+  CALL H5Sclose_f(sid, error)
+
+  ! Create named datatype in each group
+  CALL H5Tcopy_f(H5T_NATIVE_INTEGER, tid, error)
+
+  CALL H5Tcommit_f(fid, "/Type_zero", tid, error)
+  CALL H5Tclose_f(tid, error)
+
+  CALL H5Tcopy_f(H5T_NATIVE_INTEGER, tid, error)
+  CALL H5Tcommit_f(fid, "/Group1/Type_one", tid, error)
+  CALL H5Tclose_f(tid, error)
+
+  CALL H5Tcopy_f(H5T_NATIVE_INTEGER, tid, error)
+  CALL H5Tcommit_f(fid, "/Group1/Group2/Type_two", tid, error)
+  CALL H5Tclose_f(tid, error)
+
+END SUBROUTINE build_visit_file
diff --git a/fortran/test/tH5T_F03.f90 b/fortran/test/tH5T_F03.f90
index 7c99856..da35696 100644
--- a/fortran/test/tH5T_F03.f90
+++ b/fortran/test/tH5T_F03.f90
@@ -103,7 +103,7 @@ SUBROUTINE test_array_compound_atomic(total_error)
 
   ! Create file 
   CALL h5fcreate_f(FILENAME,H5F_ACC_TRUNC_F,fid1,error)
-  CALL check("h5fcreate_f", error, total_error)    
+  CALL check("h5fcreate_f", error, total_error)
 
   ! Create dataspace for datasets 
   CALL h5screate_simple_f(SPACE1_RANK, sdims1, sid1, error)
@@ -1988,6 +1988,7 @@ SUBROUTINE t_regref(total_error)
   TYPE(C_PTR) :: f_ptr
   CHARACTER(LEN=ds2dim0) :: chrvar
   CHARACTER(LEN=20), DIMENSION(1:2) :: chrref_correct
+  TYPE(h5o_info_t) :: oinfo                  ! Object info struct
 
   chrvar = "The quick brown "
   READ(chrvar,'(16A1)') wdata2(1:16,1)
@@ -2097,7 +2098,7 @@ SUBROUTINE t_regref(total_error)
      f_ptr = C_LOC(rdata(i))
      CALL H5Rdereference_f(dset, H5R_DATASET_REGION_F, f_ptr, dset2, error)
      CALL check("H5Rdereference_f",error, total_error)
-     
+ 
      CALL H5Rget_region_f(dset, f_ptr, space, error)
      CALL check("H5Rget_region_f",error, total_error)