From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25799 invoked by alias); 2 Aug 2002 18:26:02 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 25782 invoked by uid 71); 2 Aug 2002 18:26:02 -0000 Date: Fri, 02 Aug 2002 11:26:00 -0000 Message-ID: <20020802182602.25781.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: Gabriel Dos Reis Subject: Re: libstdc++/7439: C99 compat: Can't use the name INFINITY in an enum. Reply-To: Gabriel Dos Reis X-SW-Source: 2002-08/txt/msg00036.txt.bz2 List-Id: The following reply was made to PR libstdc++/7439; it has been noted by GNATS. From: Gabriel Dos Reis To: bkoz@gcc.gnu.org Cc: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, greyleaf@attbi.com, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org Subject: Re: libstdc++/7439: C99 compat: Can't use the name INFINITY in an enum. Date: 02 Aug 2002 20:18:16 +0200 bkoz@gcc.gnu.org writes: | Old Synopsis: Can't use the name INFINITY in an enum. | New Synopsis: C99 compat: Can't use the name INFINITY in an enum. | | State-Changed-From-To: open->analyzed | State-Changed-By: bkoz | State-Changed-When: Fri Aug 2 09:52:38 2002 | State-Changed-Why: | This comes from /usr/include/bits/mathdef.h: | | # define INFINITY HUGE_VALF | | It looks like INFINITY is a C99 macro. | | Currently, the plan WRT libstdc++ and C99 macros is undefined. It's also an issue for things like isnan, et. al. It's also a cause for the persistent failure of | | 26_numerics/c99_classification_macros_c++.cc | | I don't know what to do, but whatever is done should be consitent with all of these C99'isms. As part of my current work, I will provide support for infinities in numeric_limits<> so that the INFINITY macro become redondant. Then in the compliant C headers, we could #undef them. I'll post a RFC for a possible strategy with C99 macros. Thanks, -- Gaby