C Operator Precedence
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下表列出了C运算符的优先级和结合性。运营商列出从上到下，优先级在降.
原文：
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 | ++ --
|
Suffix/postfix increment and decrement | Left-to-right |
()
|
Function call | ||
[]
|
Array subscripting | ||
.
|
Structure and union member access | ||
−>
|
Structure and union member access through pointer | ||
(type){list}
|
Compound literal（C99） | ||
| 2 | ++ --
|
Prefix increment and decrement | Right-to-left |
+ −
|
Unary plus and minus | ||
! ~
|
Logical NOT and bitwise NOT | ||
(type)
|
Type cast | ||
*
|
Indirection (dereference) | ||
&
|
Address-of | ||
sizeof
|
Size-of | ||
_Alignof
|
Alignment requirement（C11） | ||
| 3 | * / %
|
Multiplication, division, and remainder | Left-to-right |
| 4 | + −
|
Addition and subtraction | |
| 5 | << >>
|
Bitwise left shift and right shift | |
| 6 | < <=
|
For relational operators < and ≤ respectively | |
> >=
|
For relational operators > and ≥ respectively | ||
| 7 | == !=
|
For relational = and ≠ respectively | |
| 8 | &
|
Bitwise AND | |
| 9 | ^
|
Bitwise XOR (exclusive or) | |
| 10 | |
|
Bitwise OR (inclusive or) | |
| 11 | &&
|
Logical AND | |
| 12 | ||
|
Logical OR | |
| 13 | ?:
|
Ternary conditional | Right-to-Left |
| 14 | =
|
Simple assignment | |
+= −=
|
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 | ||
| 15 | ,
|
Comma | Left-to-right |
解析表达式时，操作员是列出的一些行会的约束更严格的（如果用括号），其参数比任何操作上列出它下面的一排.
原文：
When parsing an expression, an operator which is listed on some row will be bound tighter (as if by parentheses) to its arguments than any operator that is listed on a row further below it.
是在同一单元中的算子，（有可能是一个单元格中列出的几行的运算符）具有相同的优先级，并在给定的方向上被分组。例如，表达a=b=c被解析为a=(b=c)，而不是(a=b)=c因为从右到左结合性。请注意，这并不影响的的子表达式，b，和c的求值顺序.
原文：
Operators that are in the same cell (there may be several rows of operators listed in a cell) have the same precedence and are grouped in the given direction. For example, the expression a=b=c is parsed as a=(b=c), and not as (a=b)=c because of right-to-left associativity. Note that this does not affect the 求值顺序 of the subexpressions a, b, and c.
原文：
