C Unary Operators

Unary operators appear before their operand and associate from right to left.

Syntax

unary-expression:
 postfix-expression
 ++ unary-expression
 -- unary-expression
 unary-operator cast-expression
 sizeof unary-expression
 sizeof ( type-name )

unary-operator: one of
 & * + - ~ !

See also

C Operators