首页 > 代码库 > C++ - Operator Precedence
C++ - Operator Precedence
The following table lists the precedence and associativity of C++ operators. Operators are listed top to bottom, in descending precedence.
| Precedence | Operator | Description | Associativity |
|---|---|---|---|
| 1 | :: | Scope resolution | Left-to-right |
| 2 | ++ -- | Suffix/postfix increment and decrement | |
type()type{} | Function-style type cast | ||
() | Function call | ||
[] | Array subscripting | ||
. | Element selection by reference | ||
-> | Element selection through pointer | ||
| 3 | ++ -- | Prefix increment and decrement | Right-to-left |
+ - | Unary plus and minus | ||
! ~ | Logical NOT and bitwise NOT | ||
(type) | C-style type cast | ||
* | Indirection (dereference) | ||
& | Address-of | ||
sizeof | Size-of | ||
new,new[] | Dynamic memory allocation | ||
delete,delete[] | Dynamic memory deallocation | ||
| 4 | .* ->* | Pointer to member | Left-to-right |
| 5 | * / % | Multiplication, division, and remainder | |
| 6 | + - | Addition and subtraction | |
| 7 | << >> | Bitwise left shift and right shift | |
| 8 | < <= | For relational operators < and ≤ respectively | |
> >= | For relational operators > and ≥ respectively | ||
| 9 | == != | For relational = and ≠ respectively | |
| 10 | & | Bitwise AND | |
| 11 | ^ | Bitwise XOR (exclusive or) | |
| 12 | | | Bitwise OR (inclusive or) | |
| 13 | && | Logical AND | |
| 14 | || | Logical OR | |
| 15 | ?: | Ternary conditional | Right-to-left |
= | Direct assignment (provided by default for C++ classes) | ||
+= -= | Assignment by sum and difference | ||
*= /= %= | Assignment by product, quotient, and remainder | ||
<<= >>= | Assignment by bitwise left shift and right shift | ||
&= ^= |= | Assignment by bitwise AND, XOR, and OR | ||
| 16 | throw | Throw operator (for exceptions) | |
| 17 | , | Comma | Left-to-right |
C++ - Operator Precedence
声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉： 投诉/举报 工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。