Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Date: Mon, 27 Jun 2005 09:43:19 +0200 From: Corinna Vinschen To: newlib@sources.redhat.com Cc: cygwin@cygwin.com Subject: Re: HUGE is missing in math.h Message-ID: <20050627074319.GA383@calimero.vinschen.de> Reply-To: newlib@sources.redhat.com Mail-Followup-To: newlib@sources.redhat.com, cygwin@cygwin.com References: <83d0063b0506260937400a44d3@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <83d0063b0506260937400a44d3@mail.gmail.com> User-Agent: Mutt/1.4.2i On Jun 26 09:37, Humberto Bortolossi wrote: > Hi! > > I'm trying to port a C program written originally in > Linux to the Microsoft Windows plataform. > > I've realized that math.h under cygwin doesn't > define the macro HUGE, that is defined in > the math.h under linux: > > /* Declarations for math functions. > Copyright (C) 1991-1993,1995-1999,2001,2002 Free Software Foundation, Inc. > This file is part of the GNU C Library. > */ > /* SVID mode specifies returning this large value instead of infinity. */ > # define HUGE 3.40282347e+38F > > I thought math.h should be quite portable ... HUGE is not portable. It's not defined in the standard, see http://www.opengroup.org/onlinepubs/009695399/basedefs/math.h.html Use HUGE_VAL instead. However, other definitions are missing in math.h, like HUGE_VALF, HUGE_VALL, INFINITY and NAN. Since math.h is part of newlib, I've redirect this posting to the newlib mailing list. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader mailto:cygwin@cygwin.com Red Hat, Inc. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/