Operators

Operators have the purpose to combine values and variables. They can do mathematical computations, call functions, access pointers, do logical comparisons and much more. Operators are the executing elements of the C programming language. They always return a value of a defined type.

Operator concepts

Operator, Operand, Operation

Introduction to the terminology

Unary, Binary, Ternary

Operators with one, two or three operands

Operator Prescedence

Processing Direction and ranking

Expression, lvalue, rvalue

Evaluation of expressions

Sequence Points

Sequential access of operands

Pointer Arithmetics

Mathematical behaviour of addresses

Arithmetical operators

+

Addition operator

-

Subtraction operator

*

Multiplication operator

/

Division operator

%

Modulo operator

+

Positive operator

-

Negative operator

Pre-increment operator

Pre-decrement operator

Post-increment operator

Post-decrement operator

Comparison operators

==

Equal operator

!=

Unequal operator

<

Less operator

<=

Less-equal operator

>

Greater operator

>=

Greater-equal operator

Logical operators

!

Logic NOT

&&

Logic AND

||

Logic OR

~

Binary NOT

&

Binary AND

|

Binary OR

^

Binary XOR

<<

Shift Left

>>

Shift Right

Assignment operators

=

Assignment operator

+=

Addition assignment operator

-=

Subtraction assignment operator

*=

Multiplication assignment operator

/=

Divison assignment operator

%=

Modulo assignment operator

&=

Binary AND assignment operator

|=

Binary OR assignment operator

^=

Binary XOR assignment operator

Shift left assignment operator

Shift right assignment operator

Memory operators

.

Field access operator

->

Pointer access operator

[]

Array element operator

&

Address operator

*

Dereference operator

Sizeof Object operator (Incomplete)

Sizeof Type operator (Incomplete)

General operators

()

Bracketing of operators

Explicit type cast (Incomplete)

Function call operator

,

Sequence operator

Condition operator