From: "Richard W.M. Jones" <rjo...@redhat.com>
Original commit message:
Thanks: Eric Blake
Porting notes:
We already have the nesting fix in the "common/include/minmax.h" header
file, from nbdkit commit 9f462af12e3b ("common/include: Fix MIN and MAX
macros so they can be nested", 2022-02-22), via libnbd commit
2f25695212db5. However, that port didn't include the update to the test
case. Do it now.
Signed-off-by: Laszlo Ersek <ler...@redhat.com>
(cherry picked from nbdkit commit 9f462af12e3b8b9840435a266d7e6e7d45ed70bf)
---
common/include/test-minmax.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/common/include/test-minmax.c b/common/include/test-minmax.c
index 285f8074e503..095c91491acc 100644
--- a/common/include/test-minmax.c
+++ b/common/include/test-minmax.c
@@ -154,5 +154,19 @@ main (void)
SIGNED_TEST (f, -FLT_MAX, FLT_MAX);
SIGNED_TEST (d, -DBL_MAX, DBL_MAX);
+ /* Test that MIN and MAX can be nested. This is really a compile
+ * test, but we do check the answer.
+ */
+ assert (MIN (MIN (1, 2), 3) == 1);
+ assert (MAX (MIN (1, 2), 3) == 3);
+ assert (MIN (MAX (1, 2), 3) == 2);
+ assert (MAX (MAX (1, 4), 3) == 4);
+ assert (MIN (3, MIN (1, 2)) == 1);
+ assert (MAX (3, MIN (1, 2)) == 3);
+ assert (MIN (3, MAX (1, 2)) == 2);
+ assert (MAX (3, MAX (1, 4)) == 4);
+ assert (MIN (MIN (1, MIN (2, 3)), 4) == 1);
+ assert (MAX (MAX (1, MAX (2, 3)), 4) == 4);
+
exit (EXIT_SUCCESS);
}
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