Syntax

<unary-operator> <unary expression>

OR

<unary-operator> <type><unary expression>

Remarks 

Unary operators group right-to-left. 

The C++ language provides the following unary operators:

• ! Logical negation
• * Indirection
• ++ Increment
• ~ Bitwise complement
• -- Decrement
• - Unary minus
• + Unary plus