Operator precedence determines which operator will be evaluated first, affecting how an expression is computed. Some operators have higher precedence than others, so higher precedence operators are evaluated first. For example, the multiplication operator has higher precedence than addition. The associativity indicates the direction in which operators are evaluated, which can be left to right or right to left.

Precedence	Operator	Description	Associativity
1.	()	Parentheses (function call)	left-to-right
	[]	Brackets (array subscript)
	.	Member selection via object name
	->	Member selection via a pointer
	++/–	Postfix increment/decrement
2.	++/–	Prefix increment/decrement	right-to-left
	+/-	Unary plus/minus
	!~	Logical negation/bitwise complement
	(type)	Cast (convert value to temporary value of type)
	*	Dereference
	&	Address (of operand)
	sizeof	Determine size in bytes on this implementation
3.	*,/,%	Multiplication/division/modulus	left-to-right
4.	+/-	Addition/subtraction	left-to-right
5.	<< , >>	Bitwise shift left, Bitwise shift right	left-to-right
6.	< , <=	Relational less than/less than or equal to	left-to-right
6.	> , >=	Relational greater than/greater than or equal to	left-to-right
7.	== , !=	Relational is equal to/is not equal to	left-to-right
8.	&	Bitwise AND	left-to-right
9.	^	Bitwise exclusive OR	left-to-right
10.	\|	Bitwise inclusive OR	left-to-right
11.	&&	Logical AND	left-to-right
12.	\|\|	Logical OR	left-to-right
13.	?:	Ternary conditional	right-to-left
14.	=	Assignment	right-to-left
	+= , -=	Addition/subtraction assignment
	*= , /=	Multiplication/division assignment
	%= , &=	Modulus/bitwise AND assignment
	^= , \|=	Bitwise exclusive/inclusive OR assignment
	<>=	Bitwise shift left/right assignment
15.	,	expression separator	left-to-right