operator

 1 # [] () . ->                         # ->
 2 # - (type) ++ -- * & ! ~ sizeof      # <-
 3 # / * %                              # ->
 4 # + -                                # ->
 5 # << >>                              # ->
 6 # > >= < <=                          # ->
 7 # == !=                              # ->
 8 # &                                  # ->
 9 # ^                                  # ->
10 # |                                  # ->
11 # &&                                 # ->
12 # ||                                 # ->
13 # ?:                                 # <-
14 # = /= *= %= += -= <<= >>= &= ^= |=  # <-
15 # ,                                  # ->