Here is the simple C++ program : int main() { union { int z; unsigned int w; }; w = 0; }
-- Summary: GCC does not emit debug info for variables in anonymous unions Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: debug AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dpatel at apple dot com CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20998