From owner-freebsd-wireless@FreeBSD.ORG Wed Nov 30 23:29:07 2011 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D31511065676; Wed, 30 Nov 2011 23:29:07 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-vx0-f182.google.com (mail-vx0-f182.google.com [209.85.220.182]) by mx1.freebsd.org (Postfix) with ESMTP id 7C6B88FC16; Wed, 30 Nov 2011 23:29:07 +0000 (UTC) Received: by vcbfk1 with SMTP id fk1so1487619vcb.13 for ; Wed, 30 Nov 2011 15:29:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=/pGCaQfLS//VqnNAw5FkgNofYqkYQ1TvzjVNSxNiFW4=; b=F7lhRt7zFldAtCuANlEMAtmRz5I/Gm7RE0Ieb3T4nBEqDKuSmmzuEH+1kMNrokm4Jv fh52MAJHl4xHHGa6VNja4KnMQwscxkIrI7W7WLW6OzU9d8OOdG9eb4KHEzBtlplz1ovB p4SceiGDFbzjiyHT0KdoWmotffIbPeolAMeyg= MIME-Version: 1.0 Received: by 10.52.33.69 with SMTP id p5mr3890379vdi.78.1322695746506; Wed, 30 Nov 2011 15:29:06 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.52.186.74 with HTTP; Wed, 30 Nov 2011 15:29:06 -0800 (PST) In-Reply-To: <20111130224422.GA36424@freebsd.org> References: <20111130224422.GA36424@freebsd.org> Date: Thu, 1 Dec 2011 07:29:06 +0800 X-Google-Sender-Auth: 2_EeFCATfuLZVfC7Htggrr0OoAI Message-ID: From: Adrian Chadd To: Alexander Best Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-wireless@freebsd.org Subject: Re: comparing floating points via "==" or "!=" X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Nov 2011 23:29:07 -0000 On 1 December 2011 06:44, Alexander Best wrote: > hi there, > > i played a bit with the gcc -Wfloat-equal warning and noticed that inside > sys/dev/ath/ath_rate/sample/tx_schedules.h, a lot of comparisons of floating > points are happening ("=="). is there a better way to deal with this? ... where? adrian