From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.176.0/21 X-Spam-Status: No, score=-3.0 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MSGID_FROM_MTA_HEADER,RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 From: Florian Weimer Subject: Re: weird strncmp usage? Date: Fri, 03 Nov 2006 22:05:15 +0100 Message-ID: <8764dwb5ro.fsf@mid.deneb.enyo.de> References: <45494D84.2060402@shadowen.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii NNTP-Posting-Date: Fri, 3 Nov 2006 21:05:42 +0000 (UTC) Return-path: Envelope-to: gcvg-git@gmane.org In-Reply-To: <45494D84.2060402@shadowen.org> (Andy Whitcroft's message of "Thu, 02 Nov 2006 01:44:36 +0000") Precedence: bulk X-Mailing-List: git@vger.kernel.org Archived-At: Received: from vger.kernel.org ([209.132.176.167]) by ciao.gmane.org with esmtp (Exim 4.43) id 1Gg6E9-0001Wo-6S for gcvg-git@gmane.org; Fri, 03 Nov 2006 22:05:27 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753528AbWKCVFT (ORCPT ); Fri, 3 Nov 2006 16:05:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753531AbWKCVFT (ORCPT ); Fri, 3 Nov 2006 16:05:19 -0500 Received: from mail.enyo.de ([212.9.189.167]:3077 "EHLO mail.enyo.de") by vger.kernel.org with ESMTP id S1753528AbWKCVFR (ORCPT ); Fri, 3 Nov 2006 16:05:17 -0500 Received: from deneb.vpn.enyo.de ([212.9.189.177] helo=deneb.enyo.de) by mail.enyo.de with esmtp id 1Gg6Dz-0003Xc-QF for git@vger.kernel.org; Fri, 03 Nov 2006 22:05:15 +0100 Received: from fw by deneb.enyo.de with local (Exim 4.63) (envelope-from ) id 1Gg6Dz-0001Zx-Fk for git@vger.kernel.org; Fri, 03 Nov 2006 22:05:15 +0100 To: git@vger.kernel.org Sender: git-owner@vger.kernel.org * Andy Whitcroft: > If you are doing these a _lot_ then there is a significant additional > cost to using strlen on a constant string. strlen has been a GCC builtin for quite some time. If the wrapper function is inlined, GCC will optimize it away. (It also turns the