[Boost-bugs] [Boost C++ Libraries] #6343: Spirit::qi semantic action destroys attribute value

Subject: [Boost-bugs] [Boost C++ Libraries] #6343: Spirit::qi semantic action destroys attribute value
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-01-01 22:55:50

#6343: Spirit::qi semantic action destroys attribute value
---------------------------------+------------------------------------------
 Reporter:  kkanishev@…          |       Owner:  djowel 
     Type:  Bugs                 |      Status:  new    
Milestone:  To Be Determined     |   Component:  spirit 
  Version:  Boost 1.48.0         |    Severity:  Problem
 Keywords:                       |  
---------------------------------+------------------------------------------
 Long story short. This code:
 {{{
 #include <boost/config/warning_disable.hpp>
 #include <boost/spirit/include/qi.hpp>
 #include <boost/foreach.hpp>

 #include <iostream>
 #include <string>
 #include <vector>

 void f(){return;}

 int main()
 {
         namespace qi = boost::spirit::qi;
         namespace ns = boost::spirit::ascii;

         qi::rule<std::string::iterator,std::vector<int>(),ns::space_type>
 ex;
         ex =  qi::int_[f] >> *ex;

         std::string str = "3 1 4 1 5 9";
         std::vector<int> out;

         if(qi::phrase_parse(str.begin(),str.end(),ex,ns::space,out))
         {
                 std::cout << "Result: ";
                 BOOST_FOREACH(int d , out) std::cout << d << " , ";
                 std::cout << "\n";
         }
 }
 }}}
 Doesn't change the contents of the "std::vector<int> out".

 If I remove the semantic action:
 {{{  ex =  qi::int_ >> *ex; }}}

 Then everything goes as expected.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6343>
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