A.1. Operator Precedence
Operators are shown in decreasing order of precedence from top to bottom (Fig. A.1).
|
Operator |
Type |
Associativity |
|---|---|---|
|
:: |
binary scope resolution |
left to right |
|
:: |
unary scope resolution |
|
|
() |
parentheses |
left to right |
|
[] |
array subscript |
|
|
. |
member selection via object |
|
|
-> |
member selection via pointer |
|
|
++ |
unary postfix increment |
|
|
-- |
unary postfix decrement |
|
|
typeid |
runtime type information |
|
|
dynamic_cast < type > |
runtime type-checked cast |
|
|
static_cast< type > |
compile-time type-checked cast |
|
|
reinterpret_cast< type > |
cast for nonstandard conversions |
|
|
const_cast< type > |
cast away const-ness |
|
|
++ |
unary prefix increment |
right to left |
|
-- |
unary prefix decrement |
|
|
+ |
unary plus |
|
|
- |
unary minus |
|
|
! |
unary logical negation |
|
|
~ |
unary bitwise complement |
|
|
sizeof |
determine size in bytes |
|
|
& |
address |
|
|
* |
dereference |
|
|
new |
dynamic memory allocation |
|
|
new[] |
dynamic array allocation |
|
|
delete |
dynamic memory deallocation |
|
|
delete[] |
dynamic array deallocation |
|
|
( type ) |
C-style unary cast |
right to left |
|
.* |
pointer to member via object |
left to right |
|
->* |
pointer to member via pointer |
|
|
* |
multiplication |
left to right |
|
/ |
division |
|
|
% |
modulus |
|
|
+ |
addition |
left to right |
|
- |
subtraction |
|
|
<< |
bitwise left shift |
left to right |
|
>> |
bitwise right shift |
|
|
< |
relational less than |
left to right |
|
<= |
relational less than or equal to |
|
|
> |
relational greater than |
|
|
>= |
relational greater than or equal to |
|
|
== |
relational is equal to |
left to right |
|
!= |
relational is not equal to |
|
|
& |
bitwise AND |
left to right |
|
^ |
bitwise exclusive OR |
left to right |
|
| |
bitwise inclusive OR |
left to right |
|
&& |
logical AND |
left to right |
|
|| |
logical OR |
left to right |
|
?: |
ternary conditional |
right to left |
|
= |
assignment |
right to left |
|
+= |
addition assignment |
|
|
-= |
subtraction assignment |
|
|
*= |
multiplication assignment |
|
|
/= |
division assignment |
|
|
%= |
modulus assignment |
|
|
&= |
bitwise AND assignment |
|
|
^= |
bitwise exclusive OR assignment |
|
|
|= |
bitwise inclusive OR assignment |
|
|
<<= |
bitwise left-shift assignment |
|
|
>>= |
bitwise right-shift assignment |
|
|
, |
comma |
left to right |