From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12408 invoked by alias); 25 Mar 2003 18:32:08 -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 12387 invoked by uid 48); 25 Mar 2003 18:32:08 -0000 Date: Tue, 25 Mar 2003 18:33:00 -0000 Message-ID: <20030325183208.12386.qmail@sources.redhat.com> To: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, rwgk@cci.lbl.gov From: zack@gcc.gnu.org Reply-To: zack@gcc.gnu.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, rwgk@cci.lbl.gov, gcc-gnats@gcc.gnu.org Subject: Re: c++/10212: Preprocessor ## problem X-SW-Source: 2003-03/txt/msg01725.txt.bz2 List-Id: Synopsis: Preprocessor ## problem State-Changed-From-To: open->closed State-Changed-By: zack State-Changed-When: Tue Mar 25 18:32:08 2003 State-Changed-Why: Not a bug. C++98 [cpp.concat]/3: If the result [of pasting two tokens together] is not a valid preprocessing token, the behavior is undefined. GCC chooses to issue a hard error. The ## in the macro in your example is totally unnecessary. Remove it and your program will work correctly both with GCC 3.3 and with all other compilers. http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10212