/in/foo.cc: In function 'int main()':
/in/foo.cc:39:7: error: expected ';' before 'cg'
  time cg;
       ^~
/in/foo.cc:39:9: warning: statement is a reference, not call, to function 'time' [-Waddress]
  time cg;
         ^
/in/foo.cc:39:9: warning: statement has no effect [-Wunused-value]
/in/foo.cc:40:2: error: 'cg' was not declared in this scope
  cg.init();
  ^~