C-language operator precedence list (Super detailed---reprint plus own exercise)

Reproduced in: http://www.jb51.net/article/37282.htm

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C-language operator precedence

Priority level	Operator	Name or meaning	Use form	Combination direction	Description
1	[]	Array subscript	array name [constant expression]	Left to right	--
	()	Parentheses	(expression)/function name (formal parameter list)		--
	.	Member selection (object)	Object. Member name		--
	-	Member selection (pointer)	Object pointers, member names		--
2	-	Minus sign operator	-expression	Right to Left	Monocular operator
	~	Bitwise inverse operator	~ Expression
	++	Self-increment operator	+ + variable name/variable name + +
	--	Self-decrement operator	--Variable name/variable name--
	*	Value operator	* Pointer variable
	&	Fetch address operator	& Variable Name
	!	Logical non-operator	! An expression
	Type	Forcing type conversions	(data type) expression		--
	sizeof	Length operator	sizeof (expression)		--
3	/	Except	An expression/expression	Left to right	Binocular operator
	*	By	Expression-expression *
	%	Remainder (modulo)	Integer expression% integer expression
4	+	Add	An expression + an expression	Left to right	Binocular operator
	-	Reducing	Expression-expression
5	<<	Move left	Variables << expressions	Left to right	Binocular operator
	>>	Move right	Variables >> expressions
6	>	Greater than	Expressions > expressions	Left to right	Binocular operator
	>=	Greater than or equal	Expression->= expression
	<	Less than	Expressions < expressions
	<=	Less than or equal	Expression-<= expression
7	==	Equals	Expression-= = Expression	Left to right	Binocular operator
	！ =	Not equal to	Expression! = Expression
8	&	Bitwise-AND	Expressions & Expressions	Left to right	Binocular operator
9	^	Bitwise XOR OR	An expression ^ expression	Left to right	Binocular operator
10	|	Bitwise OR	Expression-expression	Left to right	Binocular operator
11	&&	Logic and	Expressions && Expressions	Left to right	Binocular operator
12	||	Logical OR	An expression | | An expression	Left to right	Binocular operator
13	?:	Conditional operators	Expression 1? Expression 2: Expression 3	Right to Left	Trinocular operator
14	=	Assignment operators	variable = expression	Right to Left	--
	/=	Assign value after addition	Variable-/= expression		--
	*=	Multiply post-Assign value	Variable-*= expression		--
	%=	Assign value after modulo	Variable-%= expression		--
	+=	Add after Assignment	Variable + = expression		--
	-=	Reduced-value Assignment	Variable-= expression		--
	<<=	Assign value after left shift	Variable-<<= expression		--
	>>=	Assign value after right shift	Variable->>= expression		--
	&=	Bitwise AND post-assigned values	Variable-&= expression		--
	^=	Bitwise XOR or post-assignment	Variable-^= expression		--
	|=	Bitwise OR post-assigned value	Variable-|= expression		--
15	，	Comma operator	expression, expression,...	Left to right	--

Description
Operators of the same precedence, the order of operations is determined by the binding direction.

Simple Note is:! > Arithmetic operators > Relational operators > && > | | > Assignment Operators

Example:

Combine the following examples to analyze:

EG1:

int  k=7; int x=;p rintf ("%d\n", x%= (k%=5)); // the remainder operator in parentheses first obtains the  result x%=2; // then calculate the x=x%2;  Result is 0

EG2:

int k=7; int x=;p rintf ("%d\n", x%=k-k%5);  // operation result is 2

EG3:

int n=, i=4;p rintf ("%d\n", n%=i+1);  // operation result is 0 // %= (take remainder assignment operator) priority is lower than +

C-language operator precedence list (Super detailed---reprint plus own exercise)