what is Operator :

• It is a symbole which perform some operation by using operand
• Ex : + , * , - , =

what is operand :

• it may be avariable or may be a constant
  • variable : value can be changed
    • Ex : res, x
  • constant : value can’t be changed
    • Ex : 5, 4, 2

what is expression :

• collection of both operator and operand is called as Expression
• res = x + 5 * 4 + 5 - 2

Types of Operator :

• there are two types of operators :

  • Using Operand :
    • unary : work with one operand
      • • , - , ++ , - -
    • binary : works with two operands
      • • • • / > < > = < =
    • ternary : works with three operands
    • both in C and C++ support only one ternary operator that is conditional operator
      • syntax : condition ? true value : false value ;
  • Using Operation :
    • arithmetic : + - * / %
    • relational : > < > = < = == ! =
    • bitwise : & | ^ ~ >> <<
    • logical : && || !
    • conditional : ? :
    • assignment : =
    • *compound assignment : += -= = |= ^= &= >> = << =
    • special : [ ] ( ) , . - > ::

• C suppoert 45 operators But C++ supports 56 ( 11 extra operators )

• 11 Extra operators :

  • :: ( scope resulation)
  • ::* ( scope resulation star )
  • . ( dot )

  • • ( arrow )

  type conversion

  • typeid ( )

  Dynamic memory allocation

  • new ( )
  • staic_cast ( )
  • dynamic_cast
  • reinterpreter_cast ( )
  • . / - > *

Arithmatic : + - * / %

• % : mod is used to get reminder
• mod can’t works with float type value , it only works with int type value.

Relational :

• It return bool type value
• true can represent as 1
• false can be present as 0

Bitwise :