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What is the precedence of operators in C language?

清浅
Release: 2019-03-08 09:11:05
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The priority of operators in C language has the following rules: for operators of the same priority, the order of operations is determined by the direction of combination. That is, logical non-greater than arithmetic operator greater than relational operator greater than logical AND greater than logical or greater than assignment operator

This article mainly provides a detailed analysis and introduction to the priority of operators in C language. It has It has certain reference value and I hope it will be helpful to everyone.

What is the precedence of operators in C language?

【Recommended course: C Language Tutorial

##->Member selection (pointer)Object pointer->Member name--2-Negative Sign Operator-expressionright to left Unary operator~Bitwise negation operator~ExpressionIncrement operator Variable name/Variable name--Decrement operator--Variable name/Variable name--*Value operator*Pointer variable##sizeoflength operatorsizeof(expression)--3*%4-5> Greater thanexpression>expressionleft to right##<=Less than or equal toexpression<=expression##7! =89101112 13##&=##^=|=15##expression,expression,…Left to right--##Summary: Operators with the same precedence, The order of operations is determined by the binding direction.

Priority

Operator

Name or meaning

Use form

Combined direction

Instructions

1

[]

Array subscript

Array name[ Constant expression]

left to right

--

()

##Parentheses

(expression)/function name(parameter list)

--

.

Member selection (object)

Object.Member name

--

##&

Get address operator

&Variable name

!

Logical NOT operator

!Expression

(Type)

Forced type conversion

(Data type)Expression Formula

--

##/

except

Expression/expression

Left to right

Binary operator

Multiply

expression*expression

Remainder (modulo)

##Integer expression% Integer expression

Add

Expression expression

Left to right

Binary operator

minus

expression-expression

<<

Shift left

Variable< ;

Left to right

Binary operator

##>>

Shift right

Variable>>Expression

##6

Binary Operator

>=

Greater than or equal to

expression>=expression

##<

is less than

expression

==

is equal to

expression==expression

Left to Right

binary operator

is not equal to

expression! = expression

&

bitwise AND

Expression & expression

Left to right

Binary operator

^

Bitwise XOR

expression^expression

left to right

binary operator

|

bitwise or

Expression|Expression

Left to right

Binary operator

&&

logical AND

expression&&expression

Left to right

Binary operator

||

logical OR

expression||expression

Left to right

Binary operator

?:

Conditional operator

Expression 1?

Expression 2: Expression 3

Right to left

Ternary operator

14

=

Assignment operator

Variable =expression

right to left

--

/=

Assignment after division

Variable/=Expression

--

*=

Multiply and assign value

Variable*=expression

--

%=

Assign value after modulo

Variable%=expression

--

=

Assignment after addition

Variable = expression

--

-=

Assignment after subtraction

Variable-=Expression

--

<<=

Assign after left shift

Variable<<=expression

--

##>>=

Assign value after right shift

Variable>>=Expression

--

##Assignment after bitwise AND

Variable&=Expression

--

Assignment after bitwise XOR

Variable^=expression

--

Assignment after bitwise OR

Variable|=Expression

--

,

##comma operator

The simple note is:! > Arithmetic operators > Relational operators > && > || > Assignment operators

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