Operators in C

There are three types of operators. A unary expression consists of either a unary operator prepended to an operand, or the sizeof keyword followed by an expression. The expression can be either the name of a variable or a cast expression. If the expression is a cast expression, it must be enclosed in parentheses. A binary expression consists of two operands joined by a binary operator. A ternary expression consists of three operands joined by the conditional-expression operator.

C includes the following unary operators:

Symbol	Name
– ~ !	Negation and complement operators
* &	Indirection and address-of operators
sizeof	Size operator
+	Unary plus operator
++ ––	Unary increment and decrement operators

Binary operators associate from left to right. C provides the following binary operators:

Symbol	Name
* / %	Multiplicative operators
+ –	Additive operators
<<   >>	Shift operators
<   >   <=   >=   ==   !=	Relational operators
&   | ^	Bitwise operators
&&   ||	Logical operators
,	Sequential-evaluation operator

C has one ternary operator: the conditional-expression operator (? :).      

conditional-expression:

logical-OR-expression

logical-OR expression ? expression : conditional-expression

The following examples show uses of the conditional operator:

j = ( i < 0 ) ? ( -i ) : ( i );