void symmetry::do_print_tree(const print_tree & c, unsigned level) const
{
- c.s << std::string(level, ' ') << class_name()
+ c.s << std::string(level, ' ') << class_name() << " @" << this
<< std::hex << ", hash=0x" << hashvalue << ", flags=0x" << flags << std::dec
<< ", type=";