http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45999 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2010-10-13 09:42:58 UTC --- Reduced #include <vector> int main() { std::vector<bool> b(4); b.push_back(1); return 0; } There's no pretty printer for vector<bool>