Re: [Boost-bugs] [Boost C++ Libraries] #8413: BOOST_PP_SEQ_SIZE

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8413: BOOST_PP_SEQ_SIZE
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-05-17 02:42:16

#8413: BOOST_PP_SEQ_SIZE
-------------------------------+---------------------------
  Reporter:  anonymous         |      Owner:  no-maintainer
      Type:  Patches           |     Status:  new
 Milestone:  To Be Determined  |  Component:  preprocessor
   Version:  Boost 1.52.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+---------------------------

Comment (by eldiener):

 The notation:

 {{{
 ( var1a , var1b )( var2a , var2b )
 }}}

 is not a Boost PP sequence. Each element of a Boost PP sequence must be a
 single-element tuple.

 Therefore applying BOOST_PP_SEQ_SIZE to such syntax is undefined behavior.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8413#comment:2>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.