Re: [Boost-bugs] [Boost C++ Libraries] #7809: compiler errors with gcc in c++11 mode

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7809: compiler errors with gcc in c++11 mode
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-12-19 05:38:32

#7809: compiler errors with gcc in c++11 mode
--------------------------------------+-------------------------------------
  Reporter:  nathanridge              |       Owner:  eric_niebler
      Type:  Bugs                     |      Status:  new         
 Milestone:  To Be Determined         |   Component:  xpressive   
   Version:  Boost Development Trunk  |    Severity:  Regression  
Resolution:                           |    Keywords:              
--------------------------------------+-------------------------------------
Description changed by nathanridge:

Old description:

> he following code:
>

> #include <string>
> #include <boost/xpressive/xpressive_static.hpp>
>
> void foo(const boost::xpressive::sregex& regex)
> {
>     std::string input;
>     boost::xpressive::regex_replace(input, regex, "");
> }
>

> when compiled with GCC (I tested with 4.6/4.7/4.8) in C++11 mode,
> gives the following compiler error:
>

> In file included from ./boost/xpressive/detail/core/regex_impl.hpp:21:0,
>                  from ./boost/xpressive/match_results.hpp:54,
>                  from ./boost/xpressive/detail/core/access.hpp:21,
>                  from ./boost/xpressive/detail/core/state.hpp:18,
>                  from
> ./boost/xpressive/detail/core/matcher/alternate_end_matcher.hpp:20,
>                  from ./boost/xpressive/detail/core/matchers.hpp:17,
>                  from ./boost/xpressive/regex_primitives.hpp:22,
>                  from ./boost/xpressive/xpressive_static.hpp:24,
>                  from test.cpp:2:
> ./boost/xpressive/detail/utility/tracking_ptr.hpp: In instantiation of
> 'struct
> boost::xpressive::detail::tracking_ptr<boost::xpressive::detail::regex_impl<__gnu_cxx::__normal_iterator<const
> char*, std::basic_string<char> > > >':
> ./boost/proto/detail/preprocessed/expr_variadic.hpp:50:49:   required
> from 'struct
> boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,
> boost::proto::argsns_::term<boost::xpressive::detail::tracking_ptr<boost::xpressive::detail::regex_impl<__gnu_cxx::__normal_iterator<const
> char*, std::basic_string<char> > > > >, 0l>'
> ./boost/xpressive/basic_regex.hpp:53:8:   required from 'struct
> boost::xpressive::basic_regex<__gnu_cxx::__normal_iterator<const char*,
> std::basic_string<char> > >'
> ./boost/xpressive/regex_algorithms.hpp:916:10:   required from
> 'BidiContainer boost::xpressive::regex_replace(BidiContainer&, const
> boost::xpressive::basic_regex<BidiIter>&, const typename
> boost::iterator_value<Base>::type*,
> boost::xpressive::regex_constants::match_flag_type, typename
> boost::disable_if<boost::xpressive::detail::is_char_ptr<BidiRange>
> >::type*) [with BidiContainer = std::basic_string<char>; BidiIter =
> __gnu_cxx::__normal_iterator<const char*, std::basic_string<char> >;
> typename boost::iterator_value<Base>::type = char; typename
> boost::disable_if<boost::xpressive::detail::is_char_ptr<BidiRange>
> >::type = void]'
> test.cpp:7:53:   required from here
> ./boost/xpressive/detail/utility/tracking_ptr.hpp:440:73: error: no type
> named 'unspecified_bool_type' in 'class
> boost::intrusive_ptr<boost::xpressive::detail::regex_impl<__gnu_cxx::__normal_iterator<const
> char*, std::basic_string<char> > > >'
>      typedef typename intrusive_ptr<element_type>::unspecified_bool_type
> unspecified_bool_type;
> ^
>

> It works fine if I don't compile in C++11 mode. It used to work fine
> even in C++11 mode in the 1.51 release (don't have 1.52 around to test
> ATM).

New description:

 The following code:



 {{{
 #include <string>
 #include <boost/xpressive/xpressive_static.hpp>

 void foo(const boost::xpressive::sregex& regex)
 {
     std::string input;
     boost::xpressive::regex_replace(input, regex, "");
 }

 }}}


 when compiled with GCC (I tested with 4.6/4.7/4.8) in C++11 mode,
 gives the following compiler error:



 {{{
 In file included from ./boost/xpressive/detail/core/regex_impl.hpp:21:0,
                  from ./boost/xpressive/match_results.hpp:54,
                  from ./boost/xpressive/detail/core/access.hpp:21,
                  from ./boost/xpressive/detail/core/state.hpp:18,
                  from
 ./boost/xpressive/detail/core/matcher/alternate_end_matcher.hpp:20,
                  from ./boost/xpressive/detail/core/matchers.hpp:17,
                  from ./boost/xpressive/regex_primitives.hpp:22,
                  from ./boost/xpressive/xpressive_static.hpp:24,
                  from test.cpp:2:
 ./boost/xpressive/detail/utility/tracking_ptr.hpp: In instantiation of
 'struct
 boost::xpressive::detail::tracking_ptr<boost::xpressive::detail::regex_impl<__gnu_cxx::__normal_iterator<const
 char*, std::basic_string<char> > > >':
 ./boost/proto/detail/preprocessed/expr_variadic.hpp:50:49:   required from
 'struct boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,
 boost::proto::argsns_::term<boost::xpressive::detail::tracking_ptr<boost::xpressive::detail::regex_impl<__gnu_cxx::__normal_iterator<const
 char*, std::basic_string<char> > > > >, 0l>'
 ./boost/xpressive/basic_regex.hpp:53:8:   required from 'struct
 boost::xpressive::basic_regex<__gnu_cxx::__normal_iterator<const char*,
 std::basic_string<char> > >'
 ./boost/xpressive/regex_algorithms.hpp:916:10:   required from
 'BidiContainer boost::xpressive::regex_replace(BidiContainer&, const
 boost::xpressive::basic_regex<BidiIter>&, const typename
 boost::iterator_value<Base>::type*,
 boost::xpressive::regex_constants::match_flag_type, typename
 boost::disable_if<boost::xpressive::detail::is_char_ptr<BidiRange>
 >::type*) [with BidiContainer = std::basic_string<char>; BidiIter =
 __gnu_cxx::__normal_iterator<const char*, std::basic_string<char> >;
 typename boost::iterator_value<Base>::type = char; typename
 boost::disable_if<boost::xpressive::detail::is_char_ptr<BidiRange> >::type
 = void]'
 test.cpp:7:53:   required from here
 ./boost/xpressive/detail/utility/tracking_ptr.hpp:440:73: error: no type
 named 'unspecified_bool_type' in 'class
 boost::intrusive_ptr<boost::xpressive::detail::regex_impl<__gnu_cxx::__normal_iterator<const
 char*, std::basic_string<char> > > >'
      typedef typename intrusive_ptr<element_type>::unspecified_bool_type
 unspecified_bool_type;
                                                                          ^

 }}}


 It works fine if I don't compile in C++11 mode. It used to work fine
 even in C++11 mode in the 1.51 release (don't have 1.52 around to test
 ATM).

--
-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7809#comment:1>
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