zz c++操作符优先级表

from:http://www.cppreference.com/wiki//language/operator_precedence?redirect=1

C++ Operator Precedence

The operators at the top of this list are evaluated first. Operators within a group have the same precedence. All operators have left-to-right associativity unless otherwise noted.

Precedence	Operator	Description	Overloadable	Associativity
1	::	scope resolution	no	left to right
2	()	function call	yes	left to right
	[]	array access	yes
	->	member access	yes
	.		no
	++  --	postfix	yes
	dynamic_cast  static_cast  reinterpret_cast  const_cast	type conversion	no
	typeid	Get type information	no
3	!  not	logical negation	yes	right to left
	~  compl	bitwise negation (complement)	yes
	++  --	prefix	yes
	+  -	unary sign operations	yes
	*  &	indirection and reference	yes
	sizeof	Size (of the type) of the operand in bytes	no
	new  new[]  delete  delete[]	dynamic memory management	yes
	(type)	Cast to a given type	yes
4	->*	member pointer selector	yes	left to right
	.*	member object selector	no
5	*  /  %	arithmetic operations	yes	left to right
6	+  -
7	<<  >>	shift operations	yes	left to right
8	<  <=  >  >=	relational operations	yes	left to right
9	==  != not_eq
10	&  bitand	bitwise AND	yes	left to right
11	^  xor	bitwise XOR	yes	left to right
12	|  bitor	bitwise OR	yes	left to right
13	&&  and	logical AND	yes	left to right
14	||  or	logical OR	yes	left to right
15	?:	Ternary conditional (if-then-else)	no	right to left
16	=  +=  -=  *=  /=  %=  &=  ^= |= <<= >>=	assignment	yes	right to left
17	,	Sequential evaluation operator	yes	left to right