/* Generated by re2c */ { YYCTYPE yych; goto yy0; yy1: ++YYCURSOR; yy0: if (YYLIMIT <= YYCURSOR) YYFILL(1); yych = *YYCURSOR; switch (yych) { case 'a': goto yy1; default: goto yy3; } yy3: {x;} } re2c: warning: line 2: rule matches empty string [-Wmatch-empty-string]