unary operator Comparison Table

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unary operator comparison table

Subject use in have example have purpose return indicate

! to negate the value of the operand a boolean logical NOT

++ prefix or postfix form
example expression equivalent longer expression
a++;
b=a++;
++a;
b=++a; a=a+1;
b=a; a=a+1;
a=a+1;
a=a+1; b=a;
to increment its operand by one a value called its result

-- prefix or postfix form
example expression equivalent longer expression
a--;
b=a--;
--a;
b=--a; a=a-1;
b=a; a=a-1;
a=a-1;
a=a-1; b=a;
to decrement its operand by one a value called its result

~ to perform a bitwise complement a value called its result

Next operator: . Up: operator Previous operator: tertiary operator