PRECEDENCE OF C OPERATORS, HIGH TO LOW

Given an unparenthesized expression of the form	   X  op1  Y  op2  Z	
where  op1, op2	 are operators, the ambiguity is resolved by grouping
Y  with the operand opposite the higher-precedence operator of the
two in case of unequal precedence.  If	op1, op2  have the same
precedence (by being in the same numbered level in the table
below), then it is evaluated as	   (X  op1  Y)	op2  Z
("left-associative" operators) in all cases except the conditional
and assignment operators---levels 3 and 2 below---which are
right-associative.

     [From Harbison and Steele, C: A REFERENCE MANUAL]


16:	  a[k]		 (subscripting)
	  f(...)	 (function calls)
	  .		 (direct component selection)
	  ->		 (indirect component selection)
----------------------------------------------------------------
15:	  ++  --	 (POSTFIX increment/decrement)
----------------------------------------------------------------
14:	  ++  --	 (PREFIX increment/decrement)
	  sizeof	 (size)
	  (type name)	 (casts)
	  ~		 (bitwise NOT)
	  !		 (logical NOT)
	  -		 (arithmetic unary negation)
	  &		 (address of)
	  *		 (indirection)
----------------------------------------------------------------
13:	  *  /	%	 (times, divide, remainder)
----------------------------------------------------------------
12:	  +  -		 (plus, minus [not unary negation])
----------------------------------------------------------------
11:	  <<  >>	 (left and right shifts)
----------------------------------------------------------------
10:	  <  >	<=  >=	 (relational)
----------------------------------------------------------------
 9:	  ==  !=	 (equality, inequality)
----------------------------------------------------------------
 8:	  &		 (bitwise AND)
----------------------------------------------------------------
 7:	  ^		 (bitwise XOR)
----------------------------------------------------------------
 6:	  |		 (bitwise OR)
----------------------------------------------------------------
 5:	  &&		 (logical AND)
----------------------------------------------------------------
 4:	  ||		 (logical OR)
----------------------------------------------------------------
 3:	  ? :		 (conditional [right-associative])
----------------------------------------------------------------
 2:	   =  +=  -=	 (assignment [right-associative])
	  *=  /=  %=
	  <<=  >>=
	  &=  ^=  |=
----------------------------------------------------------------
 1:	  ,		 (comma:  sequential evaluation)