[Boost-bugs] [Boost C++ Libraries] #5958: Passing an argument of non-POD class type boost::match_results through ellipsis

Subject: [Boost-bugs] [Boost C++ Libraries] #5958: Passing an argument of non-POD class type boost::match_results through ellipsis
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-09-28 18:14:39

#5958: Passing an argument of non-POD class type boost::match_results through
ellipsis
--------------------------------------------------------------------+-------
 Reporter:  "LeJacq, Jean Pierre" <jeanpierre.lejacq@…>             |       Owner:  johnmaddock
     Type:  Bugs                                                    |      Status:  new        
Milestone:  To Be Determined                                        |   Component:  regex      
  Version:  Boost 1.47.0                                            |    Severity:  Problem    
 Keywords:  POD                                                     |  
--------------------------------------------------------------------+-------
 boost::regex_replace() is implemented using the any_type struct that has a
 single constructor that has ellipsis as the argument type. The non-POD
 type boost::match_results is passed to the any_type constructor.

 I believe this violates the standard (section 5.2.2 para 7. In particular,
 "If the argument has a non-POD class type (clause 9), the behavior is
 undefined."

 This issue was detected with the IBM compiler XL C/C++ 11.1.0.3 with the
 following diagnostic:

 "boost/regex/v4/regex_format.hpp", line 912.67: 1540-2924 (W) Cannot pass
 an argument of non-POD class type
 "boost::match_results<std::_Ptrit<char,long,const char *,const char &,char
 *,char &>,std::allocator<boost::sub_match<std::_Ptrit<char,long,const char
 *,const char &,char *,char &> > > >" through ellipsis.
 "boost/regex/v4/regex_format.hpp", line 912.73: 1540-2924 (W) Cannot pass
 an argument of non-POD class type
 "boost::match_results<std::_Ptrit<char,long,const char *,const char &,char
 *,char &>,std::allocator<boost::sub_match<std::_Ptrit<char,long,const char
 *,const char &,char *,char &> > > >" through ellipsis.
 "boost/regex/v4/regex_format.hpp", line 912.76: 1540-2924 (W) Cannot pass
 an argument of non-POD class type
 "boost::re_detail::string_out_iterator<std::basic_string<char,std::char_traits<char>,std::allocator<char>
 > >" through ellipsis.
 "boost/regex/v4/regex_format.hpp", line 912.84: 1540-2924 (W) Cannot pass
 an argument of non-POD class type
 "boost::match_results<std::_Ptrit<char,long,const char *,const char &,char
 *,char &>,std::allocator<boost::sub_match<std::_Ptrit<char,long,const char
 *,const char &,char *,char &> > > >" through ellipsis.
 "boost/regex/v4/regex_format.hpp", line 912.87: 1540-2924 (W) Cannot pass
 an argument of non-POD class type
 "boost::re_detail::string_out_iterator<std::basic_string<char,std::char_traits<char>,std::allocator<char>
 > >" through ellipsis.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5958>
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