C Language Basic to Advance Course > Structure of C

Storage Classes in C Programming

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In C, there are four types of storage: automatic, register, static, and external.

The extern storage class is used to provide a reference to a global variable that is shared by all application files. The variable cannot be initialised when you use 'extern,' but it does direct the variable name to a previously established storage location.

The storage class specifies the place in memory where an object's storage is allocated, as well as the duration of the storage allocation. It also determines the scope, which defines the portion of the programme where a variable name is visible, i.e. the variable is accessible by name.

A variable will only be known globally in this file if it is static. extern means that a global variable defined in another file will be known in this file, and it can also be used to call functions defined in other files.

The term "volatile" does not refer to a storage class. Type qualifiers are volatile and const.

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  1. Introduction to C Programming
    24m 32s
  2. How to use LearnVern
    3m 20s
  3. Assignment : Introduction to C
    3m 17s

  1. Setting up C Environment
    17m 24s
  2. First Program in C
    25m 16s
  3. Assignment : Setting up C & First Program on C
    3m 50s

  1. Basic Syntax
    21m 44s
  2. Data Types in C Programming
    26m 19s
  3. Assignment : Structure of C
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  4. Variables in C Programming
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  5. Storage Classes in C Programming
    28m 23s
  6. printf() and scanf() Functions
    22m 56s
  7. Constants in C Programming
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  1. Operators in C Programming
    23m 18s
  2. Assignment : Operators in C
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  1. Decision Making- If Statement, If-else Statement
    19m 5s
  2. Decision Making - Nested If, Switch Statement, Nested Switch Statement
    26m 7s
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    21m 9s
  5. Break, Continue and Goto Statement
    14m 54s
  6. Assignment : Decision making and Flow Control
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  1. Introduction to User Defined Functions
    9m 28s
  2. User Defined Functions -Function Definition, Function Declaration and Function Call
    20m 55s
  3. User Defined Functions - Functions and Parameters
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  4. User Defined Functions- Types of Parameters
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  5. Scope of a Variable
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  6. Assignment : Working with User Defined Functions 1
    5m 24s
  7. Assignment : Working with User Defined Functions 2
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  1. Declaration & Initialization of Arrays
    17m 30s
  2. Accessing Array Elements
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  3. Types of Arrays
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  4. 2D Arrays
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  5. Multidimensional Arrays
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  6. Introduction to Pointers
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  7. Pointers with Functions
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  8. Pointer Types: Null Pointer, Wide Pointer, Void Pointer
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  9. Pointer Arithmetic
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  10. Array of Pointers
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  11. Working with Strings
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  12. Introduction to Structures
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  13. Basic Structure Example
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  14. Nested Structures, Array of Structures
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  15. Union in C Programming
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  1. Typedef Function in C Programming
    10m 7s
  2. Assignment : Typedef Function
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  1. Overview of File Handling
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  2. Reading and Writing to Files
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  3. Assignment : File Handling in C
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  4. Basic File Handling
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  5. Bit Fields
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  6. File Input/Output Functions -I
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  1. Preprocessors and Header Files
    8m 29s
  2. Assignment : Preprocessors and Header Files
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  1. Type Casting
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  2. Assignment : Type Casting
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  1. Error Solving in C
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  2. Assignment : Error Solving in C
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  1. Recursive Functions in C
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  2. Assignment : Recursive Functions
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  1. Variable Arguments in User Defined Functioncs
    20m 2s
  2. Assignment : Variable Arguments in User Defined Functions
    3m 14s

  1. Memory Management
    11m 34s
  2. Assignment : Memory Management
    2m 58s

  1. Command Line Arguments
    9m 12s
  2. Assignment : Command Line Arguments
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  1. Inbuilt Library Functions- Math.h Library
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  2. Inbuilt Library Functions- String.h Library, Time.h Library
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    4m 31s

  1. Running and Debugging programs in C
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  2. Assignment : Running and Debugging Programs
    3m 41s

  1. Compilation and Execution
    15m 53s
  2. Assignment : Compilation and Execution
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  2. Advanced C Features: Linked List
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  3. Assignment : Macros and Linked List
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  2. Swap 2 Numbers
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  3. Making a Calculator
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  5. Prime Check
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  7. Join 2 Strings
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  8. Reverse a string
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  10. Printing Array Elements and Addresses using Pointers
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  11. Structure for Student Data
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  12. Read and Write Data in a File
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  1. Course Summary
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  1. Interview Question
    30m 24s

  1. Career Guideline
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