Operator Precedence

Level	Operators	Note
1 (highest)	() [] -> . postfix++ --	always wins
2	prefix++ -- * & ! ~ sizeof	right→left
3–4	* / % + -	arithmetic
5	<< >>	shifts
6–7	< <= >= > == !=	== is above & !
8	&	bitwise AND
9	^	bitwise XOR
10	|	bitwise OR
11–12	&& ||	logical
14 (lowest)	= += -= …	assignment

// TRAP — == binds tighter than &
val & 0x01 == 0      // → val & (0x01==0) → val & 0 → always 0!
(val & 0x01) == 0    // correct

// TRAP — postfix++ beats *
*p++    // → *(p++) — deref old p, then advance
(*p)++  // increment the value p points to