From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-prs-return-31988-listarch-gcc-prs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 27173 invoked by alias); 25 Mar 2003 18:06:01 -0000
Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-prs/>
List-Post: <mailto:gcc-prs@gcc.gnu.org>
List-Help: <mailto:gcc-prs-help@gcc.gnu.org>
Sender: gcc-prs-owner@gcc.gnu.org
Received: (qmail 27148 invoked by uid 71); 25 Mar 2003 18:06:00 -0000
Resent-Date: 25 Mar 2003 18:06:00 -0000
Resent-Message-ID: <20030325180600.27147.qmail@sources.redhat.com>
Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer)
Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org
Resent-Reply-To: gcc-gnats@gcc.gnu.org, rwgk@cci.lbl.gov
Received: (qmail 25100 invoked by uid 48); 25 Mar 2003 18:00:43 -0000
Message-Id: <20030325180043.25099.qmail@sources.redhat.com>
Date: Tue, 25 Mar 2003 18:16:00 -0000
From: rwgk@cci.lbl.gov
Reply-To: rwgk@cci.lbl.gov
To: gcc-gnats@gcc.gnu.org
X-Send-Pr-Version: gnatsweb-2.9.3 (1.1.1.1.2.31)
Subject: c++/10212: Preprocessor ## problem
X-SW-Source: 2003-03/txt/msg01718.txt.bz2
List-Id: <gcc-prs.sourceware.org>


>Number:         10212
>Category:       c++
>Synopsis:       Preprocessor ## problem
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Tue Mar 25 18:06:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Ralf W. Grosse-Kunstleve
>Release:        cvs gcc-3_3-branch 2003-03-25 approx. 08:00AM PST
>Organization:
>Environment:
Redhat 7.3 on Pentium
>Description:
The code below fails to compile with current cvs gcc 3.3:

% cat z.cpp
# define BOOST_PYTHON_INPLACE_OPERATOR(op)                      \
  template <class R>                                            \
  inline R                                                      \
  operator##op(R const& a, R const& b )                         \
  {                                                             \
      return a+b;                                               \
  }

BOOST_PYTHON_INPLACE_OPERATOR(+)

% gcc --version
gcc (GCC) 3.3 20030325 (prerelease)
% gcc -c z.cpp
z.cpp:9:32: pasting "operator" and "+" does not give a valid preprocessing token
% echo $status
1

The original code compiles with a large number of compilers incl. several EDG-based, Visual C++ and gcc 2.96 - gcc 3.2.2. Older gcc's issue a warning which can be suppressed with -w.
>How-To-Repeat:
See description.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: