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 2D743C282DD for ; Sat, 11 Jan 2020 15:00:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F36132072E for ; Sat, 11 Jan 2020 15:00:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729863AbgAKPAY (ORCPT ); Sat, 11 Jan 2020 10:00:24 -0500 Received: from git.icu ([163.172.180.134]:50676 "EHLO git.icu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729696AbgAKPAY (ORCPT ); Sat, 11 Jan 2020 10:00:24 -0500 X-Greylist: delayed 567 seconds by postgrey-1.27 at vger.kernel.org; Sat, 11 Jan 2020 10:00:23 EST Received: from localhost.localdomain (unknown [212.58.119.197]) by git.icu (Postfix) with ESMTPSA id ED2652200EE; Sat, 11 Jan 2020 14:50:53 +0000 (UTC) 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 18:50:49 +0400 Message-Id: <20200111145049.5393-1-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