/in/foo.cc: In function 'int main()':
/in/foo.cc:12:11: error: 'ss1' was not declared in this scope
   if(ss1(i)&&hws1(i))
           ^
/in/foo.cc:12:20: error: 'hws1' was not declared in this scope
   if(ss1(i)&&hws1(i))
                    ^