Operators                                      Associativity
  -------------------------------------------------------------
  ()  []  ->  .                                  left to right
  !  ~  ++  --  +  -  *  &  (type)  sizeof       right to left
  *  /  %                                        left to right
  +  -                                           left to right
  <<  >>                                         left to right
  <  <=  >  >=                                   left to right
  ==  !=                                         left to right
  &                                              left to right
  ^                                              left to right
  |                                              left to right
  &&                                             left to right
  ||                                             left to right
  ?:                                             right to left
  =  +=  -=  *=  /=  %=  &=  ^=  |=  <<=  >>=    right to left
  ,                                              left to right
  -------------------------------------------------------------

  Unary + and - as well as * and & have higher precedence than
  the binary forms