From 7c39de0b7d3183d113aca40a4805a3ca8e7bfb5d Mon Sep 17 00:00:00 2001
From: Matthew Larson <matthewjlar@gmail.com>
Date: Thu, 11 Dec 2025 11:09:13 -0600
Subject: [PATCH 1/2] Add h5diff message about file object difference

---
 tools/src/h5diff/h5diff_common.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/src/h5diff/h5diff_common.c b/tools/src/h5diff/h5diff_common.c
index ed2b33a89b4..2699d8844b6 100644
--- a/tools/src/h5diff/h5diff_common.c
+++ b/tools/src/h5diff/h5diff_common.c
@@ -504,6 +504,11 @@ print_info(diff_opt_t *opts)
                 printf("Use -c for a list of objects.\n");
         }
     }
+
+    if (opts->contents == 0 && !opts->mode_verbose) {
+        printf("Files do not have the same set of objects\n");
+        printf("Use -v for a list of objects.\n");
+    }
 }
 
 /*-------------------------------------------------------------------------

From 2a421957cc94132b57364c2af0382a81ad844210 Mon Sep 17 00:00:00 2001
From: Matthew Larson <matthewjlar@gmail.com>
Date: Fri, 12 Dec 2025 09:41:02 -0600
Subject: [PATCH 2/2] Correct reference files

---
 tools/src/h5diff/h5diff_common.c         | 2 +-
 tools/test/h5diff/expected/h5diff_11.txt | 2 ++
 tools/test/h5diff/expected/h5diff_13.txt | 2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/src/h5diff/h5diff_common.c b/tools/src/h5diff/h5diff_common.c
index 2699d8844b6..8c6321e2b67 100644
--- a/tools/src/h5diff/h5diff_common.c
+++ b/tools/src/h5diff/h5diff_common.c
@@ -506,7 +506,7 @@ print_info(diff_opt_t *opts)
     }
 
     if (opts->contents == 0 && !opts->mode_verbose) {
-        printf("Files do not have the same set of objects\n");
+        printf("Files do not have the same set of objects.\n");
         printf("Use -v for a list of objects.\n");
     }
 }
diff --git a/tools/test/h5diff/expected/h5diff_11.txt b/tools/test/h5diff/expected/h5diff_11.txt
index e2e33fbe507..444db110a09 100644
--- a/tools/test/h5diff/expected/h5diff_11.txt
+++ b/tools/test/h5diff/expected/h5diff_11.txt
@@ -1,2 +1,4 @@
 dataset: </g1/dset1> and </g1/dset1>
 5 differences found
+Files do not have the same set of objects.
+Use -v for a list of objects.
diff --git a/tools/test/h5diff/expected/h5diff_13.txt b/tools/test/h5diff/expected/h5diff_13.txt
index 36676e9eac0..773022e8afe 100644
--- a/tools/test/h5diff/expected/h5diff_13.txt
+++ b/tools/test/h5diff/expected/h5diff_13.txt
@@ -8,3 +8,5 @@ position        dset1           dset1           difference
 [ 1 1 ]          1               1.001           0.001          
 [ 2 1 ]          0               1               1              
 5 differences found
+Files do not have the same set of objects.
+Use -v for a list of objects.