/in/foo.cc: In function 'int main()':
/in/foo.cc:7:6: warning: left operand of comma operator has no effect [-Wunused-value]
  if(a>=e,e>=d,d>=c,c>=b,b>=a);
     ~^~~
/in/foo.cc:7:11: warning: right operand of comma operator has no effect [-Wunused-value]
  if(a>=e,e>=d,d>=c,c>=b,b>=a);
          ~^~~
/in/foo.cc:7:16: warning: right operand of comma operator has no effect [-Wunused-value]
  if(a>=e,e>=d,d>=c,c>=b,b>=a);
               ~^~~
/in/foo.cc:7:21: warning: right operand of comma operator has no effect [-Wunused-value]
  if(a>=e,e>=d,d>=c,c>=b,b>=a);
                    ~^~~