From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4D08C282DD for ; Sat, 11 Jan 2020 15:01:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A173D2072E for ; Sat, 11 Jan 2020 15:01:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729896AbgAKPBX (ORCPT ); Sat, 11 Jan 2020 10:01:23 -0500 Received: from forward100o.mail.yandex.net ([37.140.190.180]:40972 "EHLO forward100o.mail.yandex.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729696AbgAKPBX (ORCPT ); Sat, 11 Jan 2020 10:01:23 -0500 X-Greylist: delayed 331 seconds by postgrey-1.27 at vger.kernel.org; Sat, 11 Jan 2020 10:01:22 EST Received: from forward101q.mail.yandex.net (forward101q.mail.yandex.net [IPv6:2a02:6b8:c0e:4b:0:640:4012:bb98]) by forward100o.mail.yandex.net (Yandex) with ESMTP id 9EC6F4AC065A for ; Sat, 11 Jan 2020 17:55:49 +0300 (MSK) Received: from mxback12q.mail.yandex.net (mxback12q.mail.yandex.net [IPv6:2a02:6b8:c0e:1b3:0:640:3818:d096]) by forward101q.mail.yandex.net (Yandex) with ESMTP id 9AB34CF40004 for ; Sat, 11 Jan 2020 17:55:49 +0300 (MSK) Received: from vla4-d1b041059520.qloud-c.yandex.net (vla4-d1b041059520.qloud-c.yandex.net [2a02:6b8:c17:914:0:640:d1b0:4105]) by mxback12q.mail.yandex.net (mxback/Yandex) with ESMTP id mGmpSMaAE2-tnhmvAxY; Sat, 11 Jan 2020 17:55:49 +0300 Received: by vla4-d1b041059520.qloud-c.yandex.net (smtp/Yandex) with ESMTPSA id yY0koTSVOD-tmW8jJcR; Sat, 11 Jan 2020 17:55:48 +0300 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client certificate not present) From: Shawn Landden Cc: linux-man@vger.kernel.org, Shawn Landden Subject: [PATCH] bcmp: note that this function is no longer legacy due to LLVM 9 Date: Sat, 11 Jan 2020 18:55:44 +0400 Message-Id: <20200111145544.5592-1-shawn@git.icu> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To: unlisted-recipients:; (no To-header on input) Sender: linux-man-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org Signed-off-by: Shawn Landden --- man3/bcmp.3 | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/man3/bcmp.3 b/man3/bcmp.3 index ba9838019..18d238720 100644 --- a/man3/bcmp.3 +++ b/man3/bcmp.3 @@ -70,15 +70,21 @@ T{ .BR bcmp () T} Thread safety MT-Safe .TE .SH CONFORMING TO 4.3BSD. -This function is deprecated (marked as LEGACY in POSIX.1-2001): use -.BR memcmp (3) -in new programs. +This function was deprecated (marked as LEGACY) by POSIX.1-2001). POSIX.1-2008 removes the specification of .BR bcmp (). +LLVM 9, released in 2019, revived +.BR bcmp () +and generates calls to it instead of +.BR memcmp (3) +as appropiate as an optimization (as +.BR bcmp () +need not traverse memory in-order). +.\" http://releases.llvm.org/9.0.0/docs/ReleaseNotes.html#noteworthy-optimizations .SH SEE ALSO .BR bstring (3), .BR memcmp (3), .BR strcasecmp (3), .BR strcmp (3), -- 2.20.1