id summary reporter owner description type status milestone component version severity resolution keywords cc 10194 basic_xml_grammar parses class_id failed Andrew Xu Robert Ramey "I found this issue when I used xml wserialization to save config in polymorphic case. After debugging, I found basic_xml_grammar failed to parse ""class_id"" under some conditions. There are some info for this issue: 1. Compile with NDEBUG, without NDEBUG no this issue. 2. basic_xml_grammar works fine. 3. Compile with GCC (when compile with VS2010, no this issue) Detail of GCC: gcc -v Using built-in specs. Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux Thread model: posix gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) I trimmed the test code: #include #include #include using namespace boost::archive; int main() { std::wifstream ifs(""./dashboard.xml""); if (ifs) { basic_xml_grammar xmlGrammer; xmlGrammer.parse_start_tag(ifs); std::wcout << ""rv.class_id="" << xmlGrammer.rv.class_id << std::endl; } else { std::cout << ""File doesn't exist."" << std::endl; } return 0; } and the dashboard.xml is very simple with only one line: " Bugs new To Be Determined serialization Boost 1.54.0 Problem