id summary reporter owner description type status milestone component version severity resolution keywords cc 5557 "lexical_cast(""+2"") failure" Ralf W. Grosse-Kunstleve Antony Polukhin "boost svn trunk revision 72056 breaks lexical_cast(""+2"") on all platforms we have (g++ 3.2 through 4.6, Visual C++ 8.0 through 10.0, Intel C++ 9 through 11). I will attach a small reproducer. With g++ 4.4.4 I get: terminate called after throwing an instance of 'boost::exception_detail::clone_impl >' what(): bad lexical cast: source type value could not be interpreted as target " Bugs closed To Be Determined lexical_cast Boost Development Trunk Regression fixed