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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
commita175314c3e5827eb193872241446f2f8f5c9d33c (patch)
treecd3d60ca99ae00829c52a6ca79150a5b6e62528b /cmake/stack_direction.c
parentInitial commit. (diff)
downloadmariadb-10.5-upstream/1%10.5.12.tar.xz
mariadb-10.5-upstream/1%10.5.12.zip
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'cmake/stack_direction.c')
-rw-r--r--cmake/stack_direction.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/cmake/stack_direction.c b/cmake/stack_direction.c
new file mode 100644
index 00000000..1f7a5d0b
--- /dev/null
+++ b/cmake/stack_direction.c
@@ -0,0 +1,33 @@
+/*
+ Copyright (c) 2009 Sun Microsystems, Inc.
+ Use is subject to license terms.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/* Check stack direction (0-down, 1-up) */
+int f(int *a)
+{
+ int b;
+ return(&b > a)?1:0;
+}
+/*
+ Prevent compiler optimizations by calling function
+ through pointer.
+*/
+volatile int (*ptr_f)(int *) = f;
+int main()
+{
+ int a;
+ return ptr_f(&a);
+}