C# 5.0 Programmer's Reference

Appendix E Operators

The C# operators fall into four main categories: arithmetic, comparison, logical, and bitwise. The following sections explain these categories and the operators they contain. The end of this appendix describes operator precedence and special operators, as well as operator overloading.

Arithmetic Operators

The following table lists the arithmetic operators provided by C#.

Operator	Purpose	Example	Result
++	Increment	x++ or ++x	Sets x = x + 1
--	Decrement	x-- or --x	Sets x = x - 1
–	Negation	-x	Sets x = -x
+	Unary plus	+x	Sets x = +x (leaves x unchanged)
*	Multiplication	2 * 3	6
/	Division	3.0 / 2	1.5
%	Modulus	17 % 5	2
+	Addition	2 + 3	5
+	Concatenation	"Bob " + "Baker"	"Bob Baker"
-	Subtraction	3 - 2	1
<<	Bit left shift	10110111 << 1	01101110
>>	Bit right shift	10110111 >> 1	01011011

Comparison Operators

The following table lists the comparison operators provided by C#.

Operator	Purpose	Example	Result
==	Equals	A == B	true if A equals B.
!=	Not equals	A != B	true if A does not equal B.
<	Less than	A < B	true if A is less than B.
<=	Less than or equal to	A <= B	true if A is less than or equal to B.
>	Greater than	A > B	true if A is greater than B.
>=	Greater than or equal to	A >= B	true if A is greater than or equal to B.
is	Object is or inherits from a certain type	obj is Manager	true if obj is an object that inherits from Manager.

Logical Operators

The following table summarizes the C# logical operators.

Operator	Purpose	Example	Result
!	Negation	!A	true if A is false.
&	And	A & B	true if A