Re: [Boost-bugs] [Boost C++ Libraries] #4421: fix for #4400

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4421: fix for #4400
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-08-30 03:16:14

#4421: fix for #4400
-------------------------------------------+--------------------------------
  Reporter:  Wolf Lammen <ookami1@…>       |       Owner:  no-maintainer
      Type:  Patches                       |      Status:  new          
 Milestone:  Boost 1.44.0                  |   Component:  preprocessor 
   Version:  Boost 1.44.0                  |    Severity:  Problem      
Resolution:                                |    Keywords:               
-------------------------------------------+--------------------------------

Comment (by steven_watanabe):

 Your patch prevents BOOST_PP_SEQ_REST_N from handling empty sequences.  In
 the current C++ standard, empty sequences don't work because empty macro
 arguments are illegal, but IIRC, C99 and C++0x both allow empty macro
 arguments.

 See http://chaos-pp.cvs.sourceforge.net/viewvc/chaos-pp/chaos-

 pp/chaos/preprocessor/seq/drop.h?hideattic=0&revision=1.3&view=markup for
 another implementation.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4421#comment:2>
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