From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18160 invoked by alias); 6 Sep 2005 15:29:40 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 18147 invoked by uid 48); 6 Sep 2005 15:29:36 -0000 Date: Tue, 06 Sep 2005 15:29:00 -0000 Message-ID: <20050906152936.18146.qmail@sourceware.org> From: "mmitchel at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20050729205340.23139.thor@math.tu-berlin.de> References: <20050729205340.23139.thor@math.tu-berlin.de> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug c++/23139] [3.4/4.0/4.1 Regression] -pedantic -ffast-math breaks working code X-Bugzilla-Reason: CC X-SW-Source: 2005-09/txt/msg00689.txt.bz2 List-Id: ------- Additional Comments From mmitchel at gcc dot gnu dot org 2005-09-06 15:29 ------- The problem behind both diagnostics fact that the C++ front-end pre-lexes the entire source file. As a result, the lexing routines, which depends on the setting of pedantic to determine whether or not to issue errors, are called when pedantic is set, even though we are within an __extension__ block. Because the parsing of __extension__ blocks is complex, we need to either (a) eliminate the up-front lexing, or (b) defer issuing diagnostics until we are actually in position to know the correct value of pedantic. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23139