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* missing/explicit_bzero.c: add a few comment.

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* 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
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kosaki 2015-12-01 00:35:59 +00:00
parent ed0858a8c5
commit 586c174922
2 changed files with 17 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,11 @@
Tue Dec 1 09:35:29 2015 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* missing/explicit_bzero.c: add a few comment.
Tue Dec 1 09:31:19 2015 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* missing/explicit_bzero.c: add disabling optimization on gcc.
Tue Dec 1 07:50:33 2015 Eric Wong <e@80x24.org> Tue Dec 1 07:50:33 2015 Eric Wong <e@80x24.org>
* missing/explicit_bzero.c: new file. define explicit_bzero. * missing/explicit_bzero.c: new file. define explicit_bzero.

9
missing/explicit_bzero.c
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@ -7,6 +7,15 @@
Linux has none. *Sigh* 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 #ifndef HAVE_EXPLICIT_BZERO
/* Similar to bzero(), but have a guarantee not to be eliminated from compiler /* Similar to bzero(), but have a guarantee not to be eliminated from compiler
optimization. */ optimization. */