Re: [Boost-bugs] [Boost C++ Libraries] #11998: Static const variables cannot be logged

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #11998: Static const variables cannot be logged
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-09-25 12:42:31

#11998: Static const variables cannot be logged
----------------------------------------+------------------------------
  Reporter:  Hendrik Schall <torres@…>  |      Owner:  andysem
      Type:  Bugs                       |     Status:  new
 Milestone:  To Be Determined           |  Component:  log
   Version:  Boost 1.60.0               |   Severity:  Problem
Resolution:                             |   Keywords:  log static const
----------------------------------------+------------------------------

Comment (by o.z):

 I see similar problem using bitfields:

 I took the example from
 http://www.boost.org/doc/libs/1_61_0/libs/log/example/doc/tutorial_trivial_flt.cpp

 and added a bitfield print:


 {{{
 #include <boost/log/core.hpp>
 #include <boost/log/trivial.hpp>
 #include <boost/log/expressions.hpp>

 namespace logging = boost::log;

 //[ example_tutorial_trivial_with_filtering
 void init()
 {
     logging::core::get()->set_filter
     (
         logging::trivial::severity >= logging::trivial::info
     );
 }


 struct BF {
                 unsigned int b : 8;
                 BF() : b(0) {}
 };


 int main(int, char*[])
 {
     init();

     BF bf;
     BOOST_LOG_TRIVIAL(info) << "An informational severity message " <<
 bf.b;

     return 0;
 }
 //]
 }}}


 With boost 1.60 I got a compilation error:


 {{{
 cannot bind bitfield 'bf.BF::b' to 'unsigned int&'
 }}}

 With boost 1.57 the code is compiled and run (prints: [2016-09-19
 20:21:33.018112] [0x000007fd1d5be672] [info] An informational severity
 message 0)

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11998#comment:3>
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