id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 11956,NULL values to a basic_formatting_ostream causes an error,Erich Keane ,Andrey Semashev,"Doing the following causes a segfault: char* msg = nullptr; BOOST_LOG_TRIVIAL(trace) << msg; It causes a call to std::char_traits::length on the 'msg' above, which causes a segfault. I would anticipate that this functionality match the standard ostream version of the same thing, which is to not print at all, or at least the printf formatting, which prints (null). ",Bugs,closed,To Be Determined,log,Boost Development Trunk,Problem,wontfix,,