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

Operators

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

Looping

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

Functions

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

Scope

Scope C Local Scope C Global Scope

Storage Classes

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

Array

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

String

What is String C String Functions

Pointer

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

Structure

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

Union

What is Union

Files

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

Top 100 C Interview Questions

16. What are the types relational operators?

  • Greater than (>)
  • Less than(<)
  • Greater than equal to (>=)
  • Less than equal to (<=)
  • equal to(==)
  • Not equal to (!=)

Refer for More C Relational Operators.

17. What are the Bitwise operators?

  • Right Shift (>>)
  • Left Shift (<<)
  • XOR (^)
  • One's Complement (~)
  • Bitwise OR (|)

Refer for More C Bitwise Operators.

18. What are the Logical operators?

  • Logical OR(||)
  • Logical AND(&&)
  • Logical NOT(!)

Refer for More C Logical Operators.

19. What is the useof sizeof() operator?

Using sizeof() operator, we can identified the size of the variable. While the programmer plays with dynamic memory allocation, the sizeof() operator is the one which is most frequently get used.

20. What is typedef?

In C, the typedef(keyword) allows the programmers to define the new data type name by using existing data types in C. The existing data types are int, char, float, arrays, structures and so on. There is no new data type is produced, rather than a new data type name is created. Once a new data type name is created, then variables, structures, arrays can be declared and initialized in terms of the new data type name. Refer for More C Typedef.

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