Re: [Boost-bugs] [Boost C++ Libraries] #9840: phoenix V3 and stl container non const methods

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9840: phoenix V3 and stl container non const methods
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-04-07 13:42:08

#9840: phoenix V3 and stl container non const methods
-------------------------------------+----------------------------------
  Reporter:  Theodore.Papadopoulo@…  |      Owner:  theller
      Type:  Bugs                    |     Status:  new
 Milestone:  To Be Determined        |  Component:  phoenix
   Version:  Boost 1.53.0            |   Severity:  Problem
Resolution:                          |   Keywords:  stl container method
-------------------------------------+----------------------------------

Comment (by djowel):

 Wait, I see the problem and it's not a phoenix bug nor a spirit bug. It's
 a usage bug.

 1) L is captured by value, by default. Use ref if you want to capture by
 reference
 2) Use boost::spirit::qi::_1 instead of boost::phoenix::arg_names::_1

 Here's the working code:

 {{{
     #include <boost/spirit/include/qi.hpp>
     #include <boost/spirit/include/phoenix.hpp>
     #include <boost/phoenix/stl.hpp>
     #include <boost/spirit/include/qi_uint.hpp>
     #include <boost/phoenix/phoenix.hpp>

     std::vector<unsigned> L;

     int
     main() {
         using namespace boost::spirit::qi;
         using namespace boost::phoenix;
         using boost::spirit::qi::_1;
         namespace phx = boost::phoenix;
         const std::string str("3 1 2 3");
         std::string::const_iterator first = str.begin();
         parse(first,str.end(), uint_[reserve(phx::ref(L),_1)] >>
 repeat(capacity(phx::cref(L)))[ uint_ ]);
     }
 }}}

 I'll leave it up to you to close this ticket.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9840#comment:4>
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