7 cerr << _ ("error: ") << s << '\n';
13 non_fatal_error (String s)
15 cerr << _ ("error: ") << s << '\n';
21 cerr << _ ("warning: ") <<m <<endl;
31 programming_error (String s)
33 cerr << _("Programming error: ") << s << _(" (continuing; cross thumbs)") << '\n';