C Foundation

What is C? C Compiler Installation C Extensions C Compiler C Interpreter C Program Structure

C Basics

C Keywords C Data Types C Identifiers C Variables C Constant C Escape Sequences C Constant and Volatile C Typecast


What is Operator C Comma Operator C Arithmetic Operators C Relational Operators C Logical Operators C Bitwise Operators C Conditional Operators C : : Operator C Operator Priority

Basic IO's

Basic IO's C Formatted Functions C Unformatted Functions C Common Functions

Control Statements

What is Control Statement C if Statement C if else Statement C Nested if Statement C Else if Statement C Break Statement C Continue Statement C Switch Statement C Goto Statement


What is Control Loop C for Loop C Nested for Loop C while Loop C Nested while Loop C do while Loop C Nested do while loop


What is Function C User Defined Functions C Recursion C Passing Parameters


Scope C Local Scope C Global Scope

Storage Classes

What is Storage Class C Auto C Extern C Static C Register


What is Array C One Dimensional Array C Two Dimensional Array C Multi Dimensional Array C Arrays Of Strings


What is String C String Functions


What is Pointer C Pointers Arithmetic C Pointer to Pointer C Pointers and Arrays C Pointers and Strings C Pointer to Functions Void Pointers Null Pointers C Null and Void Pointer


What is Structure C Struct within Struct C Array within Structure C Pointer to Structure C Structure and Function C Enum C Bitfield Structure C Type def


What is Union


What is File C read a file C write a file C File Handling C Error Handling C Low Level Disk I/O C Other file functions

Memory Allocation

What is Memory Allocation C Malloc() C Calloc() C Free() C Realloc() C Coreleft()

C Reference

All ASCII Code Basic C Questions

C Interview

C Interview Sets All Star Patterns All Number Patterns All Alphabet Patterns All Series Patterns
The ones who are crazy enough to think they can change the world are the ones who do.
- Steve Jobs


What Is Operator?

Generally, you too an operator because you operate most of the things in your day-to-day life. For example you may play music, you may drive a car and many more.

C Realtime Operators

Operator In C

  • In C, an operator is a symbol(+, -, *, /) which operates on a certain data type to perform mathematical, logical, relational operations.
  • An operator indicates an operation to be performed on data results into a value.
  • An operand is a data item (variable or constant) on which operators can perform the operations.
  • An expression is a combination of variables, constants and operators.
  • In C, every expression results(evaluates) into a value of certain data type.
C Operators


Assume variable a = 2 and b = 4, these values substituted to the expression, a + (5 * b) = 22. The expression can be defined as follow, a and b are variables, 5 is a constant and 22 is a result value.

Operators Classifications

C provides 4 different kind of operators to perform different kinds of operations on operands (data items).

C Operators Types

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