[Boost-bugs] [Boost C++ Libraries] #4684: [spirit] bad template error when complementing a rule

Subject: [Boost-bugs] [Boost C++ Libraries] #4684: [spirit] bad template error when complementing a rule
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-09-24 15:24:19

#4684: [spirit] bad template error when complementing a rule
-------------------------------------+--------------------------------------
 Reporter:  eric_niebler             |       Owner:  djowel 
     Type:  Bugs                     |      Status:  new    
Milestone:  Boost-1.45.0             |   Component:  spirit 
  Version:  Boost Development Trunk  |    Severity:  Problem
 Keywords:                           |  
-------------------------------------+--------------------------------------
 The following code results in a terrible compiler error. The grammar for
 Spirit should not allow {{{~}}} to apply to a {{{rule}}} object.

 {{{
 #include <boost/spirit/home/qi.hpp>

 int main()
 {
     using namespace boost::spirit::qi;
     rule<char const *> expression, term, factor;

     expression  = term >> *( ( '+' >> term ) | ( '-' >> term ) ) ;
     term        = factor >> *( ( '*' >> ~factor ) | ( '/' >> factor ) ) ;
     factor      = uint_ | '(' >> expression >> ')' | '-' >> factor ;
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4684>
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