C Language Basic to Advance Course > Working with User Defined Functions

User Defined Functions -Function Definition, Function Declaration and Function Call

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User-defined functions allow you to break down a huge programme into smaller chunks, making it easier to comprehend, maintain, and debug. If a programme contains repeating code. A function can be used to incorporate those codes and invoke them when they are needed.

Before invoking and defining the function, declare it with the necessary prototype. The name of the function should be descriptive and meaningful. Maintain the same parameter and return data types when declaring and defining the function. The same data type arguments as in Declaration and Definition should be passed.

Simply use the name of a defined function as a statement anywhere in the code to call it. The above method, greet(), for example, can be called using parentheses. Hello, Universe! If the return statement is missing, all functions default to returning None.

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

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

  1. Basic Syntax
    21m 44s
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  6. printf() and scanf() Functions
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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
    19m 39s
  4. User Defined Functions- Types of Parameters
    20m 18s
  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
    14m 45s

  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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  6. Introduction to Pointers
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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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  15. Union in C Programming
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  1. Typedef Function in C Programming
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  1. Overview of File Handling
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  1. Error Solving in C
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  1. Recursive Functions in C
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  1. Variable Arguments in User Defined Functioncs
    20m 2s
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  1. Memory Management
    11m 34s
  2. Assignment : Memory Management
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  1. Command Line Arguments
    9m 12s
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  1. Inbuilt Library Functions- Math.h Library
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  1. Running and Debugging programs in C
    19m 18s
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    3m 41s

  1. Compilation and Execution
    15m 53s
  2. Assignment : Compilation and Execution
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  1. Advanced C Features: Macros
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  2. Advanced C Features: Linked List
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  1. Printing a String
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  1. Course Summary
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  1. Interview Question
    30m 24s

  1. Career Guideline
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