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authorkosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-12-01 00:35:59 (GMT)
committerkosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-12-01 00:35:59 (GMT)
commit586c174922fc3be5181a59585ec27a75f6b29a1c (patch)
tree9d7e706ce42dc0bc8a0b7039781acc68ce455d68 /missing
parented0858a8c5b193f91423c7043a0f34083db5724d (diff)
* missing/explicit_bzero.c: add a few comment.
* missing/explicit_bzero.c: add disabling optimization on gcc. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52822 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'missing')
-rw-r--r--missing/explicit_bzero.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/missing/explicit_bzero.c b/missing/explicit_bzero.c
index f140acb..c89bdbc 100644
--- a/missing/explicit_bzero.c
+++ b/missing/explicit_bzero.c
@@ -7,6 +7,15 @@
Linux has none. *Sigh*
*/
+/*
+ * Following URL explain why memset_s is added to the standard.
+ * http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1381.pdf
+ */
+
+#ifdef __GNUC__
+#pragma GCC optimize ("O0")
+#endif
+
#ifndef HAVE_EXPLICIT_BZERO
/* Similar to bzero(), but have a guarantee not to be eliminated from compiler
optimization. */