[Boost-bugs] [Boost C++ Libraries] #3552: concatenation does not work with BOOST_PP_COMMA() with g++

Subject: [Boost-bugs] [Boost C++ Libraries] #3552: concatenation does not work with BOOST_PP_COMMA() with g++
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-10-24 11:07:47

#3552: concatenation does not work with BOOST_PP_COMMA() with g++
-----------------------------------+----------------------------------------
 Reporter:  mkraemer@…             |       Owner:  no-maintainer
     Type:  Support Requests       |      Status:  new          
Milestone:  Boost 1.41.0           |   Component:  preprocessor 
  Version:  Boost 1.40.0           |    Severity:  Problem      
 Keywords:                         |  
-----------------------------------+----------------------------------------
 The concatenation of a token with a comma does not work with g++

 Example:[[BR]]

 {{{
 cmd>cat test.cpp
 #include <boost/preprocessor/cat.hpp>
 #include <boost/preprocessor/punctuation/comma.hpp>
 BOOST_PP_CAT(test,BOOST_PP_COMMA())
 }}}

 === g++ v3.4.4 ===
 {{{
 cmd>g++-3 --version
 g++-3 (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)

 cmd>g++-3 -E -P -I D:\Development\boost\1.40.0 test.cpp
 test.cpp:3:35: macro "BOOST_PP_CAT_I" passed 3 arguments, but takes just 2
 BOOST_PP_CAT_I;
 }}}


 === g++ 4.3.2 ===

 {{{
 cmd>g++-4 --version
 g++-4 (GCC) 4.3.2 20080827 (beta) 2
 cmd>g++-4 -E -P -I D:\Development\boost\1.40.0 test.cpp
 test.cpp:3:35: error: macro "BOOST_PP_CAT_I" passed 3 arguments, but takes
 just 2
 BOOST_PP_CAT_I;
 }}}


 === Wheras MS VisualStudio 2005 works ===

 {{{
 cmd>cl /E -I D:\Development\boost\1.40.0 test.cpp
 Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14.00.50727.762 for
 80x86
 Copyright (C) Microsoft Corporation.  All rights reserved.

 ...

 #line 3 "test6.cpp"
 test,



 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3552>
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