Fundamentals of C Programming / C Language



SymbolDefinition
= =Equal To
! =Not Equal To
<Less Than
>Greater Than
< =Less Than or Equal To
> =Greater Than or Equal To

 

Logical Operators:

 

  • Used to compare two or more conditions.

 

  • The output of logical expression is True or False.

 

  • Logical operators are

 

SymbolDefinition
&&AND Operator
| |OR Operator
!NOT Operator

 

Truth Table for &&, || and ! Operator

 

aba && ba || b! a! b
TrueTrueTrueTrueFalseFalse
TrueFalseFalseTrueFalseTrue
FalseTrueFalseTrueTrueFalse
FalseFalseFalseFalseTrueTrue

 

Order of Precedence of Operators:

 

  • All Multiplication and Division are performed first.
  • All Addition and Subtraction are then performed.

 

  • If parentheses are used in an expression, then expression in parenthesis are performed first.

 

  • If parentheses are used within parentheses, the expression, within innermost parentheses will performed first.

 

  • (e.g.)

(4 – (3*5))+2

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